Network Security Is Important For Protecting Your Computer

Network Security Is Important For Protecting Your Computer
Network Security
EET 5720
Daljot Rai
Have you ever surfed the web and received a popup alerting you a threat is detected? If so, you are
not alone. This is a very common issue web browsers and organizations face. In order to resolve or
prevent such issues, it is key to learn about the security of your network. Network security is the
protection of networks that help secure files and directories of a computer. It helps protect the user
from hackers, virus attacks, misuse and prevents unauthorized access. The importance of learning
and becoming aware of network security is important for protecting yourself and others around you.
I will be discussing the common type of attacks, methods to protect your computer from harm and
discuss what the future may hold for network security.
There are many attacks that can be associated with network security, eavesdropping,
viruses/malware and Trojans, phishing, IP spoofing attack and lastly denial of service.
Eavesdropping, has two subcategories passive and active. Passive eavesdropping refers to someone
listening to a phone call, or reading a chat email (Daya, Bhavya). Active eavesdropping refers to the
hacker physically going in and distressing the conversation (Daya, Bhavya). This type of attack
allows the hacker to steal confidential information. In this circumstance, it is important to have some
sort of network security because having someone listening in on a personal conversation can be
detrimental. This can be solved
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How Technology Has Changed The Way Of Living Across The World
Corporate Policy and Security
Technology has changed the way of living across the world. Mostly, last 20 years period is a golden
era for technology. People have accomplished several outstanding innovations in the field of
technology. Modern technology is becoming very accessible not only for richest and developed city
like New York but also for poor people and least–developed countries across the globe. It is a
tremendous achievement in the field of modern technology. Today, people are no longer have to be
on long queue or do long driving to get services from government agencies to the private big
enterprises through small coffee shops. Technology has contributed to make our life easy and fast.
However, it has created some major ... Show more content on Helpwriting.net ...
To protect web and data, companies must have a security policy. One of the best policies to protect
the company from various vulnerabilities is password policy. Passwords are the must important
element of the computer security. Week password may cause serious damage to the company. It is a
just a similar as given the main door key to the house where the diamond and millions of cash are.
So, the main purpose of choosing password policy is to set–up a standard for everybody to give a
strong password. It will set–up the standard protocol to setup and handle the passwords of every
individual that are related to the company including all users including contractors.
These are the password policy steps must follow by everyone.
➢ All system–level passwords must be changed on at least a quarterly basis
➢ All production system–level passwords must be part of the global password management
database.
➢ All users–level passwords must be changed at least every six months.
➢ Users accounts that have system–level privileges granted through group memberships must have
unique password than the users have.
➢ There must be guidelines to create a standard password such as: –
–Special characters, lower case, uppercase, punctuation, and number.
–Limitation of characters.
– Language of password
– Choose special word or characters to remember easily for users but make it difficult to the
outsiders (hackers).
➢ One–time

Implementing An Automated Distributed Firewall
Abstract
This paper discusses about implementing an automated distributed firewall in an emulated
environment allowing researchers, educators and companies for research purposes and to
experiment a realistic distributed firewall before implementing one in real life. This eliminates the
manual configuration of each firewall which is time consuming and prone to errors and eliminate
repeated experiments.
Traditional firewalls are topology restricted and considerer everyone on the inside are trusted and
one on the outside is a least potentially an enemy. In order to overcome the difficulties for traditional
firewall the idea of distributed firewall was proposed.
This demonstration will show a platform to automate emulated distributed ... Show more content on
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In the recent years, the threat that faces data and information has been systematically increasing,
from viruses to organized gangs that aim to stifle the operations of information systems, steal crucial
information or facilitate leakage of competitive information.
A firewall is a collection of components, interposed between two networks, that filters traffic
between them according to some security policy (Cheswick & Bellovin, 1994). Due to the increase
in network attacks and awareness of cyber security firewalls are used not only in companies but also
in home networks. Firewalls are the frontline of defence to secure the networks from security risks
and attacks from cyber criminals. Firewalls filters network traffic based on filtering rules defined by
the firewall administrator or admin. Although firewalls protects from network attacks, virus etc, it
depends on the firewall policies defined, if the policies are not defined properly it proposes a
security risk and limits the effectiveness of firewall security. . There are mainly three types of
firewalling techniques based on the OSI layer in which the firewall is acting on. They are (1) packet
filters, which inspect each packet passing through them, (2) application Gateways which act on
specific applications such as FTP, Telnet etc and (3) circuit level Gateways, which apply security
mechanisms whenever TCP and UDP connections are established. Firewalls have

Firewall Intrusion Detection And Honeypot Using Raspberry Pi
Firewall intrusion detection and Honeypot using Raspberry pi
Submitted in partial fulﬁllment of the requirements for the degree of Bachelor of Engineering in
Computer Engineering
By
Dishant Modi
130170107046
3.2 Schedule Representation.............................................................16 3.2Risk
Management........................................................................17
3.2.1 Risk Identification...............................................................17
3.2.2 Risk analysis.......................................................................17
3.2.3 Risk planning......................................................................18
4. System Modeling
4.1. Dataflow diagrams...............................................................19
4.1.1. Context Level Diagram................................................19
4.1.2. Level – 1 DFD..............................................................19
4.1.3. Level – 2 DFD..............................................................20
4.2. Use case diagrams ...............................................................20
4.3. Activity Diagrams .................................................................21
4.4. Sequence diagrams ..............................................................22
4.5. Class Diagrams....................................................................23
4.6. System Architecture..............................................................24
5. Configure Raspberry pi......................................................................25
6. Testing.............................................................................................30
7. Conclusion.......................................................................................31
Bibliography and References..................................................................32
Ied. A widely accepted alternative or at least complement to host–based security services is the
firewall. The firewall is inserted between the premises network and the Internet to establish a
controlled link and to erect an outer security wall or perimeter. The aim of this perimeter is to
protect the premises network from Internet–based attacks and to provide a single choke

Technology And Systems Administration Has Prompted...
As indicated by Kizza (2013), the fast development of systems administration has prompted
expanded security dangers. A large portion of these dangers are an aftereffect of hacking, uncalled
for employments of system assets and system gadget vulnerabilities. Familiarity with the different
shortcomings and vulnerabilities is fundamental to the achievement of current systems (Kizza,
2013).
The system security occurrences are expanding at an exasperating rate each year. As the
multifaceted nature of these dangers expands, so do the efforts to establish safety required to secure
systems. Endeavor server farm administrators and investigators, arrange directors and in addition
other server farm specialists need to comprehend the standards of security so as to securely convey
and oversee organizes today.
Defenselessness Assessment
Vulnerabilities
Laurie (2002) characterizes defenselessness as shortcoming that is profoundly installed in each
system and gadget and along these lines hard to evacuate. Such gadgets incorporate switches,
workstations, switches, servers and in addition the security gadgets themselves. Vulnerabilities in
system security can be considered as the easy objectives inside each system. These vulnerabilities
are available in the whole system framework (LAN organize, singular gadgets and ISP) that make
up the system (Laurie, 2002).
Systems are by and large confronted with all or a portion of the key vulnerabilities or shortcomings
to be specific;

Why Should Pay Card Security Be An Important Issue For Tom?
Mark Maciasz
Case Study Three
6 March 2016
Case Study Three
Why should payment card security be an important issue for Tom? Restaurants have a tendency to
be targets for cyber criminals. These criminals steal and reconfigure the payment card data for their
own purposes. At the Heartland Cafe, Tom has a chance to be a target for a cyber attack by being in
a high–traffic area. If the customer is compromised, Heartland Cafe will quickly lose public trust
and perhaps Tom will lose the business altogether. Extra measures toward risk management should
be taken to ensure that the business itself remains safe. Compliance with PCI–DSS protocols, PTS
requirements and the franchisor should inform the franchisee of any software that could translate ...
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Tom has been using an outdated system to protect his server. At first, Tom felt that Heartland had no
issues with security. Under his own investigation, Tom proved to himself that his security was strong
to the investigators. But the Restron POS software implemented to protect Heartland failed to meet
PCI–DSS or PA–DSS protocols, since Tom had been using an outdated system since 2009. As it
turned out, Restron dropped that POS reseller, but Tom continued to use the POS reseller. The
government has increased it's oversight over companies and asked those to comply with basic
security regulations which safeguards computer systems and networks.
Years later, the police arrived to inform him informed of a recent breach in the Heartland Cafe
network. Detectives on the scene checked and analyzed for any possible vulnerabilities, where Tom
confessed that his POS reseller, franchisor and POS reseller neglected to tell Tom to conform with
the updated PTS requirements. The investigators learned that Tom's scans originated from a different
location and confirmed that the Heartland Cafe was a victim. While Tom was updating his security
measures, he temporarily shut down Heartland Cafe in order to address this issue.
How should Tom view and approach PCI–DSS compliance?
Cyber attacks break the encryption connection and read sensitive personal information, including
passwords, credit card numbers, trade secrets, or financial data. Any communication

Visualization And Simulation
Computer and Networking Visualization and Simulation (CANVAS) is a Cybersecurity annual event
in which students compete to learn and describe the vulnerabilities in a pretend system situation.
The 6th Anniversary was held at Regis University's Denver Tech Center on April 1, 2011. The
students were provide with the essentials to explore the computer–generated network for
vulnerabilities, and what countermeasures they would use to prevent this from occurring in the
future. During this event the students' were provided with a simulated network with a diagram.
While analyzing the network for vulnerabilities, risks, threats and ways to secure the network, the
below information are my findings.
Vulnerabilities:
When analyzing CANVAS for ... Show more content on Helpwriting.net ...
By using the Colorado Energy Company diagram as their simulator project, allowed the students to
analyze their systems for vulnerabilities, threats as well as risks. The network system was attacked
due to possible malware, no firewall, network sniffing as well as spoofing. Having the above
mentioned ways of securing the Colorado Energy Company's network may not prevent an attack,
but it definitely will make it more difficult for a potential attacker to gain access into their

The Security Of A Network
There are many threats today that can compromise the security of a network. Network security is
now more important as ever as attacks on networks that hold valuable information are being
breached, even with security measures put in place. One of the biggest threats to a network is data
theft. Outside hackers pose the greatest threat. These thieves target a company's network and steal
information through vulnerabilities that they have found in their networks. They usually gain access
through the use of a Trojan horse, which is a program that looks legitimate but can be used by others
to gain access to the network. They may also use a virus or worm, which can infiltrate a network
with malicious code and replicate itself in a network. Others try to gain entry by attempting to crack
the network passwords or user accounts. We hear in the news how networks that were supposed to
be secure were breached and information was stolen that could have negative consequences. Yahoo
discovered that their network had been attacked continuously for the past two years but only
recently discovered it. Information that was stolen ranged from users birth dates to passwords that
were encrypted (Lien). When a network has been successfully breached and information stolen, the
company who has fallen victim to this not only sees their reputation hurt but also suffer a large drop
in their stock prices. This hurts people who may have some shares in that company as many
retirement plans tend to invest

Essay On Aircraft Solutions
Course Project:
Security Assessment and Recommendations – Phase I & II
Aircraft Solutions
Table of Contents
Executive Summary..............................................................1
Company Overview..............................................................1
Hardware Vulnerability.........................................................2
Policy Vulnerability..............................................................3
Hardware Solution...............................................................4
Policy Solution.....................................................................5
Summary...........................................................................6
Executive Summary
The purpose of this paper is to explore and assess computer security as it relates to Aircraft
Solutions. Aircraft Solutions provides products and services to a range of companies that require
highly specialized skills. Information is accessed by internal and external users via their Business ...
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"Security needs to be addressed as a continued lifecycle to be effective. Daily, there are new attack
signatures being developed, viruses and worms being written, natural disasters occurring, changes in
the organization workplace taking place and new technologies evolving, these all effect the security
posture in the organization" (King, 2002). This being said, it is important to evaluate firewall and
router rule sets more frequently. The possible threats against this policy include improperly
configured network infrastructure which leads to a domino effect that could start with malicious
programming which could end in data loss. Many of these threats may be unintentional as some
users may not be aware of the risks and how their processes and procedures open the door for such
attacks. For this reason alone, a more frequent evaluation is needed. This vulnerability could lead to

data loss and the exposure of trade secrets, client lists and product design. The exposure of such
information for most companies could mean a financial collapse as it no longer has the competitive
edge that makes it the industry leader. While the likelihood of this threat is very high, "security risks
to the network exist if users do not follow the security policy. Security weaknesses emerge when
there is no clear cut or written security policy document. A security policy meets these goals:
i. To inform users, staff and managers of their obligatory requirements

The Network And The Internet / External Network
As you can see in the diagram a Duel–Homed Gateway Host is placed between the internal network
and the internet/ external network. A duel–homed host can router packets between the two networks
that are connected, but usually this function is disabled making it so neither of the two networks can
not communicate with each other, but can communicate with the duel–homed host. However, the
duel–homed host can see network traffic that goes across both internal and external network. A
dual–homed host can provide services only by proxying them, or by having users log into the dual–
homed host directly (O'Reilly Building Firewalls [10]). Duel–homed Firewall architectures is used
when traffic to the internet is small and it is not business critical. Also it is used when the network
being protected does not contain extremely valuable data. Another firewall architecture that is used
in today's networks is the Screened Host Architecture. It is also called the Screen Host Gateway. A
screened host architecture provides services from a host that 's attached to only the internal network,
using a separate router (O'Reilly Building Firewalls). The primary Security feature that is provided
with this architecture is packet filtering which is done by the screening routers used. This type of
architecture uses a screening router (like in a single–box host), but also uses something called a
"bastion host" (O'Reilly Building Firewalls). The bastion host is going to sit on the internal network
and

Annotated Bibliography On Software Firewalls Essay
CHAPTER 6
EXERCISE 1
SOFTWARE FIREWALLS:
A Firewall basically prevents the private network connected to the internet from being accessed by
unauthorized user and therefore handles the traffic of internet. Hardware and software firewalls are
the types of this network security system. It examines the each data in the network and blocks the
data which is not valid and are from unauthorized user. We will discuss here only software firewalls.
Software firewalls:
Software firewall is suitable for the personal computers at home and it is software so it can be easily
installed by the user and then user can easily manage its properties and functions. Thus we can
protect our system form the unauthorized access and also from different harmful viruses. There are
further two types of software firewalls:
a. Rule based
b. Non– Rule based
Rule based firewalls include firewalls like Norton personal firewall and Non rule based includes
Zone alarm.
Now we will discuss various software firewalls.
Software firewall Functionality Type of Protection Cost Features
Zone alarm Includes inbound intrusion detection system, ability to control programs from creating
outbound connections Blocks dangerous malware and malicious apps.
Blocks hackers from remotely accessing and controlling your device.
Zone alarm Pro firewall costs $44.95/year Public Wi–Fi protection, Privacy protection
Hacker shield, App permission monitor, Anti–Phishing, Anti–malware.
Comodo firewall Includes antivirus program,

Network Security And The Internet
The world is more connected now than ever since the birth of the Internet and with the new
networking technology coming out, will continue this way. There is a large amount of personal,
business, and government information on the internet and network infrastructures. Network security
is becoming of great importance because of the attacker 's ability to steal this information that can be
easily acquired through different means of attacks. The internet itself along with network
infrastructures has many security risks in it. Knowing what attack methods are out there allows users
a chance to defend against them. Learning about the history of the Internet along with network
attack and defense allows users and anyone operating within the digital ... Show more content on
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Knowing this information will help any user or organization build a standing defense from an attack.
Malware dates back to the 1960s. The systems were slow, and computer use was rationed among
different groups of users. Students were often the last ones to be able to use the internet so they
invented tricks such as writing computer games with a Trojan horse inside to check whether the
program was running as root, and if so, created an additional privileged account with a known
password. By the 1970s, large time–sharing systems at universities were the target of pranks
involving Trojans. In 1984, a classic paper by Thompson in which he showed that even if the source
code for a system were carefully inspected, and known to be free of vulnerabilities, a trapdoor could
still be inserted. His trick was to build the trapdoor into the compiler. If this was recognized that it
was compiling the login program, it would insert a trapdoor such as a master password that would
work on any account. So the next step is to see to it that, if the compiler recognizes that it's
compiling itself, it inserts the vulnerability even if it's not present in the source. So even if you can
buy a system with verifiable secure software for the operating system, applications and tools, the
compiler binary can still contain a Trojan. The moral is that you can't trust a

IS3220 FINAL STUDY GUIDE
IS3220 FINAL STUDY GUIDE
1.) Know how NetWitness/Wireshark investigator work
Investigator provides security operations staff, auditors, and fraud and forensics investigators the
power to perform unprecedented free–form contextual analysis of raw network data captured and
reconstructed
2.) Know what type of information can be detected from a packet header
Control Information
3.) Know how TCP established a connection
To establish a connection, TCP uses a three–way handshake. Before a client attempts to connect
with a server, the server must first bind to and listen at a port to open it up for connections: this is
called a passive open. Once the passive open is established, a client may initiate an active open. To
establish a connection, ... Show more content on Helpwriting.net ...
12.) Know the attacks a hacker might perpetrate and how a hacker might make money from the
attacks
Eavesdropping, breaking and entering, social engineering, malicious code, session hijacking, man–
in–the–middle attacks, wireless hacking, SQL injections, web site attacks, and more.
13.) Know what in a organization is vulnerable to social engineering
People are the vulnerability
14.) Know how a buffer overflow attack works
Is an anomaly where a program while writing data to a buffer, overruns the buffers boundary and
overwrites adjacent memory, this is a special case of violation of memory safety.
15.) Know what attack types: impersonation, reciprocity, and phishing fall under
Social Engineering Attacks
16.) Know what happens in each of the 7 IT domains
User– defines the people who access an organizations information system.
Workstation– the computer on your desk, this can extend to other devices that provide access to
computing resources.
LAN– sub network that is made up of a group of clients plus servers which are under the control of
one central security.

LAN–WAN– computing network technologies used to transmit data over long distances between
different LANs
WAN– spans a large geographic area.
Systems/Applications– the critical infrastructure of server systems, applications, and data.
Remote Access– accessing the computing services from outside the boundary of the computing

Network Security Is The Procedure Of Computer Or Any...
Network security is the procedure of preventing and identifying unsanctioned use of your computer
or any computer on your network. Preventative measures allow you to stop unauthorized users, also
known as "intruders" or "hackers," from accessing your computer system. Detection helps establish
whether or not someone has attempted to break into your system, if they were successful, and what
they may have done . The Internet has grown to give us the ability to shop, pay bills, and create
online profiles hence, people and businesses need to make the proper steps to secure their network.
And while you may not consider your communications to be particularly interesting or confidential,
its likely that you do not want strangers reading your ... Show more content on Helpwriting.net ...
Furthermore, researchers have developed some newer methods, such as protocol normalization and
distributed firewalls but they have yet to be widely adopted . In addition, because selective data
must be able to pass in and out of a firewall in order for the protected network useful, every attack
cannot be stopped by firewalls. Particular emerging technologies, such as Virtual Private Networks
and peer–to–peer networking pose more modern challenges for firewalls .
Like firewalls, if you put intrusion detectors in place as a preventative measure you could be saving
your network from security meltdown. Intrusion detection is when you monitor the happenings of a
network itself and investigate possible incidents or impending threats of computer security policies
or acceptable use policies. After you put intrusion detection and prevention systems in place, it
mainly focuses on recognizing likely incidents, recording data regarding them, remediation, and
reporting them to security administrators. The remediation process use several response techniques,
which involve the IDPSs hindering the attack itself, altering the security environment (e.g.,
reconfiguring a firewall), or modifying the attack's content . Furthermore, organizations use
intrusion detection for additional purposes, such as looking for holes in security policies,
documenting current threats, and discouraging other individuals from

Firewall Attack Essay
In the world of computer and network security, there are myriad ways to launch an attack, which,
from the perspective of a network, can usually be defined as "traffic that has vicious intent." There
are infinite computer attacks that no firewall can prevent, such as those executed locally on the
machine by a malicious user. From the network's perspective, there are numerous types of attack.
Attacks can be grouped into two types: brute force and precision. Juniper Firewall has the capability
to protect against both types of attack. Denial of Service (DoS) attacks are one of the most well–
known network security threats under brute force attacks, which is largely due to the high–profile
way in which they can ... Show more content on Helpwriting.net ...
We can use flows or sessions as a way to determine whether traffic attempting to traverse the
firewall is legitimate. We control the state–checking components resident in Juniper Firewall by
configuring "flow" settings. These settings allow you to configure state checking for various
conditions on the device. You can use flow settings to protect against TCP hijacking, and to
generally ensure that the fire–wall is performing full state processing when desired. We take a case
study of attack on a network and perform study of the detection of the malicious packets on a
Netscreen Firewall. A new solution for securing enterprise networks will be developed here.
1. INTRODUCTION
A number of malicious attacks which causes disruption to the processes has been increased due to an
increase in the tremendous expansion in the field of computer networks. The main aim of network
administrators is to provide continuous services to which they are intended to. Currently, the main
aim of researchers is to provide secure network whereas, little intervention has been given to the
quantification of network security which includes assessing of the vulnerability and malicious
attacks to these systems. One of the huge networks which has more possibility to malware is an
Enterprise Network which is a large and diverse network that connects both major and minor sites
within an enterprise.Thesecurity and trustworthiness of Enterprise Networks have been a major
concern in

Strong Proactive Information Security Measures
Strong proactive information security measures in an organization could mean the difference
between a data breach and normal business. As it stands, attackers are getting more persistent, better
at finding out confidential information, and constantly finding new ways to gain access to internal
networks. In order to meet the rising threat, organizations must be able to defend themselves
properly. While standard perimeter defense measures can accept and deny connections, they lack a
strong deterrent to ensure there will be no future attacks. This report focuses on an intrusion
technology that will gather information and use it to recraft a similar attack back to the attacker in
hopes that a much stronger message will be sent.
1. Introduction
With cyber–attacks on organizations becoming more frequent, and with the need to keep
organizations secure, counter–measures must be taken. While firewalls can help to prevent attacks,
simply dropping packets and declining services is becoming an inefficient message to send to
attackers. Taking existing perimeter defense techniques, like firewalls, and amplifying them to
create a new style of device that will respond to attacks is the next step in firewall technology. With
these Offensive Perimeter Devices (OPDs), organizations can fight back. Imagine being able to
replicate the attack that is in progress and use it against the attackers. The OPD will help to
eliminate Denial of Service attacks and ultimately keep an organization up

Information Security
Information Security
As the world migrates to the digital village, a lot of digital data and information is generated and
transmitted. In the same line, there is a growing need for data repositories or data banks. Information
security is chiefly concerned about prevention, detection and response to computer threats or risks
(CISCO, 2013). Protecting organizational information and systems is a daunting task because of the
emerging and advanced threats to information technology resources. Securing information
technology infrastructure and informational assets is a continuous cycle as advancements in
technology presents a new breed of threats (Hunt, 1998).
In the current business landscape, accounting systems are typically modules of ... Show more
content on Helpwriting.net ...
Types of firewalls
According to CISCO (2013), firewalls are categorized into software and hardware types.
Hardware Firewalls and their advantages
Hardware firewalls are specialized network systems that contain specialized software and hardware.
When they are configured appropriately, these firewalls provide a protective barrier that hide an
entity's internal computers and applications from the outside world. Hardware firewalls can also
shield organization department; for instance, the human resources from another department such as
the finance department. Hardware firewalls are mostly applicable in scenarios where entities require
a unitary information security umbrella with the capability of protecting multiple systems (CISCO,
2013). This reason points out why most FORTUNE 500 company networks have implemented
hardware firewalls. However, since hardware firewalls are specialized devices or systems, they tend
to be complicated, expensive, tricky to configure and difficult to upgrade. That is to say, they are
best reserved for Information Technology experts or consultants trained to assess, install, configure
and maintain such systems. In addition, the low–end hardware firewalls currently found in network
devices such as routers and switches for homes and small businesses are also limited to locations. In
other words, if an accountant or any other user from the accounting department takes their mobile
devices or laptops to the road, their

Storage Of The Packet Filtering Essay
1) According to Bergstra and Burgess (2007), static packet filers have a complex network layer.
They only examine one packet at any given time. They also block SNY scans over the network. By
only considering one packet at a given time, stateless packet filtering does not stop major attacks
determined by knowing the position of the packet in a given stream of traffic. There is no context
applied to the packet during transmission. For instance, stateless packet filtering cannot protect
against denial of service (Do S) attack as it only examines the individual packets, instead of
determining the connection state alongside the related and or unrelated packets. 2) Hinglaspure and
Burghate (2014) indicates that since static filers do not preserve the results after examining the
packets, they are unable to relate the current and already examined packets. By only examining
some fields of the Internet and Transport headers, static packet filtering cannot stop the attacks using
other packet portions. Hackers are able to fool static firewalls easily because they are not smart
enough. For instance, the filters may not examine attacks that use data field of the application
messages, making the system more disposed to to the external attack. 2) Application proxy severs
safeguard the internal clients from some mischievous external servers. They force all client
connections to pass through the proxy that in turn examines the application content of all packets
during transmission.

An Effective Network Security Measure
This creates a layered method of protection, in which they have to successfully pass through all
layers, making it harder for an attacker to penetrate network defenses. Based on research a
multifactor authentication system is a more secure and harder to penetrate method, great for the
energy sector; making it an effective network security measure.
3. Firewalls
A firewall is an access control security tool used to prevent unwanted access to a network. It is
usually the first line of defense and serves sort of like a gate in which all outside network traffic and
internet connections are verified prior to granting access to a private network, making sure it meets
security policies in place (IU, 2013). With a firewall a provider can establish which traffic is
acceptable and which isn't and the firewall simply executes at command, blocking all unrecognized
access making the network more secure.
Firewalls originated in the late 1980's getting their name from firefighting and prevention,
signifying keeping a fire out (Rouse, 2014). If an attack on your network occurred it could be
compared to a fire which is where the firewall comes in, keeping negative effects out.
Firewalls are said to now be used as a major defense against cyber–attacks.
There are several types of firewalls. The most commonly used are;
Packet filtering firewalls: These were one of the first firewalls used. Their main
function was to monitor the flow of packets from the internet, verifying the

The Firewall Essay
The Firewall
WHAT IS A NETWORK FIREWALL?
A firewall is a system or group of systems that enforces an access control policy between two or
more networks. The means by which this control is accomplished varies widely, but in principle, the
firewall is a pair of mechanisms, one that blocks traffic and one that permits traffic. Some firewalls
emphasize blocking traffic, while others emphasize permitting traffic. The most important thing to
recognize about a firewall is that it implements an access control policy. If you don't know what
kind of access you want to permit or deny, or you let someone else or some product configure a
firewall based on judgment other than yours, that entity is making policy for your whole
organization.
WHY ... Show more content on Helpwriting.net ...
Generally, firewalls are configured to protect against unauthenticated interactive logins from the
outside world. This protection, more than anything, helps prevent vandals from logging on to
machines on your network. More elaborate firewalls block traffic from the outside to the inside but
permit users on the inside to communicate freely with the outside. The firewall can protect you
against any type of network–borne attack if you unplug it.
Firewalls are also important because they are a single point where you can impose security and
auditing. If someone attacks a computer system by dialing in with a modem, tracing the perpetrator
is impossible. In contrast, the firewall can act as an effective phone tap and tracing tool. Firewalls
also provide an important logging and auditing function, summarizing topics such as the kinds and
amount of traffic that passed through it and how many attempted break–ins occurred recently.
WHAT CAN'T A FIREWALL PROTECT AGAINST?
Firewalls can't protect against attacks that don't go through the firewall. Many corporations that
connect to the Internet are very concerned about proprietary data leaking out of the company.
Unfortunately, a magnetic tape exports data just as effectively as the Internet. Many organizations
whose management is terrified of Internet connections have no coherent policy about protecting
dial–in access via modems. It's silly to build a steel door six feet thick

The Importance Of Firewalls On The Operation System
This paper describes about firewall management as one of the components in information assurance,
which elaborates the importance of firewalls on the operation system. Illustrating the example of the
online transaction that can use firewall management to mitigate the risks of severe consequences
from cyberattacks. Besides, there are some limitation of firewalls as well that we have to consider in
operating the system even if the firewall is protecting the system.
Introduction
Nowadays, information assurance (IA) plays an important role in every business sector, which is the
key to dependable management decision–making, users trust, business continuity and good
corporate governance (Ezingeard, McFadzean, & Birchall ,2005). As quality and ... Show more
content on Helpwriting.net ...
Integrity is to ensure that information is not corrupted. Lastly, availability is to ensure that
information is always ready to support the demand of users. There are many diverse kinds of
information assurance services in the market nowadays, which provide independent validation and
verification services with innovative software or applications towards the organization's system
(Ezingeard, McFadzean, & Birchall, 2005). According to Managed Security. (N.d.), Dell security
service provides capability of protection towards the network, essential internal asset, remote users
and important information. In this paper, I would like to expound one of the critical services as
information assurance, named firewall management, which is the important component in the part of
information assurance in every organization.
Firewall Management
What is Firewall Management? According to Managed Firewall (N.d.), Firewall management is a
security service which prevent unauthorized access and costly breaches in the organization's system.
This service requires a high level of expertise in order to manage and control the system, in which
the network traffic must be monitored incessantly to protect from cyberattacks before the
devastation is done. As mentioned in Harrison (2011), it defines firewall as gatekeepers for the
corporate network and data center perimeters. The procedure of Firewall is to control and scan the
network

The Problem Of Computer Security
Computer security has been creating issues in the news lately. Almost every week, corrupt forces try
to take down high–profile websites. Companies lose millions of dollars and suffer damage to
computer systems. As a result, large companies spend thousands of dollars on security systems and
products to protect the doors to their corporate networks.
It 's hard to set a barrier for the intruders. Most systems administrators and users have built up a
tolerance to attempted hacking. They have accepted intruders as the norm.
An intruder attack is only one side of security .Viruses are another big security threat; the fact that
they spread easily only increases their infestations. For example, worm viruses spread when users
open email attachments, which cause the virus to email itself to the user 's entire contact list. Other
Trojan horse viruses can come into your system and leave a back door for intruders who will use
your computer as a Threat Machine to spread or to make countless attacks on other users machines.
Because the operating system plays an important role in a computer 's functioning, and because it 's
the only layer between the machine 's available resources and its users, it 's critical that the OS
resists compromise.
Hardening is this process of establishing a strong security wall against unknown threats. System
administrators harden against whatever they think could be a threat. This guide is designed to
provide a reference for system administrators who need to

Analysis Of Network Concepts For A Small Accounting Firm
This paper presents an executive summary of network concepts for a small accounting firm. This
paper also discusses the vulnerabilities of the proposed system as well as the devices, services and
over–all requirements to make it operational. Furthermore, the specifications of the network security
as well as the procedures that will take place are also expounded in this paper. The purpose of the
giving specific details is to give the firm and users a clear picture of how the system will be
implemented. This paper will also determine the feasibility of the system and its expected benefits
for the firm.
Keywords: Network, Network Security, Network Devices, Network Services, Security Measures,
Users, Data Theft, Ethics
I. Introduction
Network breaches pose a serious threat to all companies especially to those who are primarily
engaged in managing finances of their customers. This vulnerable industry includes accounting
firms, small and big alike. In fact, the biggest security breach in 2014 reported by Target
Corporation (an American retailing company operating in Minnesota and the second largest discount
retailer next to Walmart) includes 40 million credit and debit card number of customers which were
stolen during the holiday season [1]. This proves that hackers are majorly concerned with obtaining
the financial information of clients in order to acquire money. Thus, accounting firms are indeed
susceptible to network security breaches which is the reason why a well–tested

Using A Virtual Private Network ( Vpn )
Section 1.0
The world is constantly changing especially in technology. Each day new software and hardware is
created to accomplish tasks that were not possible before. These new software's and hardware's
offers new problems to come with these new accomplishments. Businesses are constantly looking
for ways to make their employees more efficient. Allowing employees to communicate not just in
the office, but remotely is being a requirement at this day and time.
This company could make use of a Virtual Private Network (VPN) that routes through the firewall.
The VPN would allow easy access to the company network for authorized employees. A VPN would
allow the company to have employees that telecommute, work from home, or remote employees. It
would allow our employees that travel frequently – like salesmen – to connect from anywhere they
may be. The VPN would allow for a more flexible work day, and help work get done when it needs
to be done instead of during normal business hours. The VPN will run through the company firewall
to help limit the traffic through to legitimate business traffic.
The company must first be aware and understand the risks of a VPN and firewall. This knowledge
will help the company make the right decision for this technology. A VPN and firewall solution is
different for every network, and must be customized to this company's network. There is also risks
to not using these tools. It is important for the company to see this risks as well, so

Swot Analysis Of Joubert Network Security
Joubert Network Security firm would like to thank you again for allowing us the time to provide
exceptional and efficient security change to your network. We have conducted an assessment of the
current network security and we will provide you with major recommendations for an optimum
security and hardened network.
The very purpose of this report is to find any vulnerability in your network and proposed sound and
effective change to mitigate any breach and be as proactive as possible. A proactive approach will
save money and keep your business running. Businesses with hardened systems succeed. As with
any business ignorance will cost millions. The lack of a user education will innocently pave the way
for vulnerabilities and hacking.
The methodology used is a penetration testing in your defense system (firewall) and a thorough
assessment that will pinpoint issues and find risks. Hackers use the same methodology to penetrate
any back door left open by inexperienced and uneducated users that will open a way for hackers
innocently and lead the way to malware and viruses.
No system is safe from hacking. However, hardened your network against any potential attack will
spare your business from breaches and catastrophes. As a result, we have evaluated and assessed the
network security and have found the following results.
First, the existing Smoothwall firewall is an effective open source firewall which provide services
for web filtering, VPN, IPS and Email services. IT also

The Steps Of Good Computer Security Operations
Introduction
A successful BC/DR plan has defined steps within the project that must be defined. We need to
initiate the project, identify key business processes, conduct an impact analysis, develop business
continuity strategies, identify communication needs, and finally monitor and review the plan.
Mitigating the impact of a disaster be keeping mission critical capability available when needed is
key to any BC/DR plan. These plans are often critical to a company and the company 's business
model. There is a significant amount of time, money, and physical resources that go in to a
successful BC/DR plan.
Background and Significance
The steps we take to create a BC/DR resemble the steps of good computer security operations.
Threat evaluation, risk assessment, mitigation, and service priorities, are a few of the computer
security operations that directly relate to a good BC/DR plan. When implementing a BC/DR from a
administrative standpoint we see a significant shift in focus from computer security to physical
infrastructure, backup and restoration procedure, staffing, logistical operations, and connectivity. To
ensure the system stays operational in a degraded state a business must address the integrity of the
system. Without computer security considerations a BC/DR plan can fail and turn into an
unmanageable situation. During a restoration of workstation in a BC/DR plan, it may be possible to
get bad data from a location that was not maintained correctly, which could

Security And Beyond Information Technology
To I.T. Security & Beyond
Information technology has become a very dominant and ever growing industry in today's market.
People have taken notice of it, and thus have invested quite heavily into it. Everyone is going online
nowadays, more than ever before, but this is not just limited to people. Financial/Educational
institutions, and various companies are all online in one form or another; being interconnected to the
internet of everything. A prominent aspect of information technology is security, and it has been
attracting a lot of attention as of late. IT Security has garnered many companies and individuals to
invest so much into it; that it has essentially created an industry of its own. However, can all of this
investment in IT Security really be justified? Let it be known that the internet is not secure. It was
originally created by the US military for communication purposes, and since then has grown into
network upon networks of computers and computer systems, for everyone to use. With the
exponential growth that the internet has taken on, it's very hard to make it as secure as one would
like. However, there are measures and protocols that are put in place to do just that, secure the
internet. The internet is a combination of equipment, protocols and people, that when put together
make everything just...work. It is a multi–layered system that depends on not just the technology
itself, but those people who manage/operate it, and of course the investment it requires for

Firewall Essay
Introduction:
Ensuring the Windows Network Security and classification of system movement, regardless of
whether in the cloud or on–premises, is a basic piece of any information insurance technique.
Securing the system foundation anticipates assaults, piece malware, and shield your information
from unapproved get to, interfered with access, or misfortune. In general society cloud, the
confinement of client foundation is basic to looking after security. Microsoft Azure, on which most
Microsoft business cloud administrations are fabricated, fulfills this essentially through an
appropriated virtual firewall, divided neighborhood (LANs), and physical detachment of back–end
servers from open confronting interfaces. ... Show more content on Helpwriting.net ...
Divided LANs empower you to isolate movement by sectioning your virtual systems and control
how activity goes between various IP subnets. Multi–level topology empowers you to assign subnets
and assign isolate address spaces for various components of your workload. These coherent
groupings and topologies mean you can characterize diverse access strategies in view of workload
sorts. Movement separation guarantees that your virtual machines (VMs) and interchanges stay
private inside a virtual system. Cross–premises availability empowers you to build up associations
between a virtual system and different on–premises locales, or other virtual systems in Azure, by
utilizing VPN portals or outsider virtual machines. Access Control Lists are deciding that you can
make at various levels of granularity, including system interfaces, individual VMs, or virtual
subnets.When you empower Azure Security Center for your membership or Resource Group, Azure
Security Center gives suggestions and alarms to arrange security issues, with a concentrated
entrance from which you can help secure your Azure organizations and avert, recognize, and

Advantages And Disadvantages Of Log Management
iii. COMPUTER SECURITY LOG MANAGEMENT
A log is actually the detailed record of all the events occurring in any organization. They consists
few entries: every entry is assigned for specific event that has occurred within a system or network.
Many logs within acompanies composed of few records related to computer security. These
computer security logs are generated by sources, including software security, such as antivirus
software, firewalls, and intrusion detection and prevention systems; operating systems on servers,
workstations, and networking equipment; and applications.
A fundamental problem with its management (log management) that happens in many companies is
effectively balancing a limited quantity of log management resources which ... Show more content
on Helpwriting.net ...
However, the firewall is still a major threat to network traffic continue to work to stop the lower
layer. It can also be a measure of protection from application–layer firewall and other network
security technologies complement the capabilities.
There are different types of firewalls that analyze each with different capabilities of network traffic
and allow or block certain instances, by comparing traffic characteristics to the existing guidelines.
To understand the capabilities of any type of firewall and design of firewall policies and the
acquisition of firewall technology, the requirements of an enterprise are effectively addressed to
achieve critical protection for network traffic.This document provides an overview of firewall
technologies and discusses their security capabilities and relative advantages and disadvantages in
detail. It also provides examples of where firewalls can be placed within networks and the
implications of deploying firewalls in particular locations. The document also makes
recommendations for establishing firewall policies and for selecting, configuring, testing, deploying,
and managing firewall solutions. To improve the effectiveness and security of their firewalls,
organizations should implement the following

Advantages And Disadvantages Of Honeypots
Abstract–Computer Networks and Internet has become very famous nowadays since it satisfies
people with varying needs by providing variety of appropriate services. Computer Networks have
revolutionized our use of computers. Online bills, shopping, transactions and many other essential
activities performed on the go by just a single click from our homes. Though it is a boon in this era,
it also has its own risks and weaknesses too. Industries need to tussle to provide security to their
networks and indeed not possible to offer a cent per cent security due to the intangible intelligence
of hackers intruding into the network. This paper exploits the concept of honeypots for providing
security to networks of industries which may not have custom ... Show more content on
Helpwriting.net ...
1. INTRODUCTION
The Internet is a network of networks. It is based on the concept of packet switching. Though the
services offered by Internet are extensively used from a layman to multi–millionaire it also has its
own defects. Many attacks on Internet are being identified and reported. Some of the common types
of
network attacks are eavesdropping, data modification, identity spoofing, password–based attacks
and denial of service attacks. To overcome all these types of attacks an organisation usually installs
an intrusion detection system to protect the confidential data exchanged over its network. The local
network is then connected to the Internet thereby availing the employees to be online on the fly.
Information security has three main objectives namely 1. Data confidentiality 2.Data integrity 3.
Data availability. Data confidentiality ensures that the secure data can be accessed only by
authorized persons. Data integrity allows secure modification of data. Data availability ensures that
the data is available readily to authorized persons. Small scale industries often do not prefer on
intrusion detection systems due to its installation and maintenance costs. Honeypots and Honeynets
are an efficient alternative for such

Firewalls And Infrastructure Security
Firewalls and Infrastructure Security
A firewall is a network device, hardware, software, or a combination of the two, whose purpose is to
enforce a security policy across its connections. It is comparable to a wall that has a window where
the wall serves to keep things out, except those permitted through the window. A security policy acts
like the glass in the window; it permits some things to pass, light, while blocking others, air. The
heart of a firewall is the security policy that it enforces.
Security policies are a series of rules that define what traffic is permissible and what traffic is to be
blocked or denied. These are not universal rules, and there are many different sets of rules for a
single company with multiple ... Show more content on Helpwriting.net ...
Advanced firewalls employ stateful packet filtering to prevent several types of undesired
communications. Should a packet come from outside the network, in an attempt to pretend that it is
a response to a message from inside the network, the firewall will have no record of it's being
requested and can discard it, blocking access. As many communications will be transferred to high
ports, above 1023, stateful inspection will enable the system to determine which sets of high
communications are permissible and which should be blocked. The disadvantage to stateful
inspection is that it takes significant resources and processing to do this type of inspection and this
reduces efficiency and requires more robust and expensive hardware. This type of inspection is
essential in today's comprehensive networks. As they are in routers, switches, servers, and other
network devices, Access control lists are a cornerstone of security in firewalls. Just as you must
protect the device from physical access, Access control lists do the same task for electronic access.
Firewalls can extend the concept of Access control lists by enforcing them as well at a packet level
when packet–level stateful filtering is performed. This can add an extra layer of protection, making
it more difficult for an outside attacker to breach a firewall.
Some high–security firewalls also employ application layer proxies. As the name

Firewall Essay
TABLE OF CONTENT
ABSTRACT/SYNOPSIS
A firewall is a product that sets up a security border whose primary undertaking is to piece or limit
both approaching and active data over a system. These firewalls are fundamentally not compelling
and suitable for professional workplaces to keep up security of data while it bolsters the free trade of
perspectives. In this paper, i think about system firewall that helps the professional workplace and
alternate systems that need to trade data over the system. A firewall ensures the stream of activity
over web and is less prohibitive of outward and internal data and furthermore give inward client the
fantasy of unknown FTP and www availability to web.
1. ... Show more content on Helpwriting.net ...
It ensures protection by standing amongst system and the outside world. The information move in
any direction must go through the firewall.
3.0 TYPES OF FIREWALLS :
There are various types of technique which might be executed by a firewall. Some of them are as
per the following:
Packet channel
Application gateway
Circuit level gateway
Proxy server
3.1 PACKET FILTER:
It focuses at one packet at once and after that it applies some set of guidelines to every packet and
afterwards it chooses to either forward the packet or dispose the packet. The standards depend on
various fields in the IP and TCP/UDP headers i.e. Source and destination address, IP protocol field,
TCP/UDP port number.
Attackers can break the security with the assistance of following techniques:
IP ADDRESS SPOOFING : In this kind of attack, attackers send a packet to inside network, by
setting source
IP address equals to IP address of inside client.
SOURCE ROUTING ATTACKS: Here attackers determine the route that is trailed by the packet to
move along the web with the goal that packet filter can be tricked to sidestep its normal checks.
Solution: The solution of this attack is disposed of all packets that use this alternative.

Advantages:
It is Simple to execute.
Low hardware cost, shabby boxes can do packet filtering.
Rules set are less complex.
3.2 APPLICATION GATEWAYS
With a specific end goal to control dangers when internal server permits connections

Essay on Identifying Potential Risk, Response, and Recovery
With identifying potential malicious attacks, threats, and vulnerabilities, measures need to be taken
to deal with the malicious activities. A strategy is needed to deal with each of the risk of the
malicious attacks and threats in the previous memo. Also controls will need to be setup to help
mitigate those risks of the attacks. A strategy and controls need to also be setup to mitigate each of
the vulnerabilities from the previous memo to help protect the computers and network for the
business. There are different strategies that can be used for dealing with the risk of a malicious
attacks and threats. The strategy used will depend on the type of attack and threat, the strategies are
risk mitigation, risk assignment, risk acceptance, ... Show more content on Helpwriting.net ...
Administrative controls are to ensure people understand and follow the policies and procedures.
Preventative controls try to stop threats from trying to use a vulnerability to gain access to the
network or computers. Detective controls identity a threat that has hit the network and computers
and corrective controls reduces the effects of a threat on the system. The most common malicious
attack and threat are from viruses and other malware. There are different types of viruses to protect a
network and computers from and viruses can get into the network in different ways, mostly by email
and websites on the internet. The best strategy for dealing with the risk for viruses and other
malware would be risk mitigation. Viruses and other malware cannot be avoided or transferred to
another business since our computers and network is here in the business for people to utilize.
Viruses are also not an acceptable risk, the damages from viruses will outweigh the money spent to
protect the network and computers. For these reasons, the strategies of risk assignment, risk
acceptance, and risk avoidance are not appropriate to use to mitigate the risk. Antivirus software can
be purchased and placed on the computers to help prevent viruses' infections would be cheaper than
money spent on the time techs to remove viruses from all systems and replace any hardware that
may be damaged by the virus. The controls needed to mitigate the risk of virus and

Benefits Of Using The Internet
Introduction:
In modern society we heavily rely on computers for a number of different reasons whether that be
paying bills, shopping online or simply staying in touch with family and friends. If you take a look
around at daily life it is clear to see just how important computers and technology are to us, they
make life easier. One would never have that one day you could do your shopping without having to
leave the comfort of your own home, this is just one of the basic uses of the modern computer.
The fastest growing element of the computer world is the internet, due to this development the
internet has now become the main communication method within the current generation whether
that is between people or companies. The internet has a lot of benefits, people and companies can
communicate and connect with others in various locations, therefore companies can take advantage
of using the internet network to support their business, however there are some disadvantages to this
method, using the internet heavily to communicate can leave companies and people vulnerable to
cyber–crime such as network attacks, this results in companies taking extreme actions to have the
best network security possible and maximise efforts to protect their network.
A majority of people think that security attacks happen externally, someone outside the company but
in fact internal attacks happen more frequent and are more harmful, Cryptek (2001) based the
argument from some articles, "that internal

Worldwide Network Security
MARKET ANALYSIS Worldwide Network Security 2012–2016 Forecast and 2011 Vendor Shares
John Grady
IDC OPINION
The worldwide network security market grew by 6.1% in 2011. The total market, which includes
firewall, unified threat management (UTM), intrusion detection and prevention (IDP), and virtual
private network (VPN) solutions, reached $7.4 billion in 2011. UTM revenue saw the strongest
growth at 17.4% and reached $2.2 billion. The IDP market saw more moderate growth at 4.5%,
reaching $1.9 billion. The firewall segment remained the largest component of the market at $2.4
billion but grew only a modest 2.9% over 2010. Revenue from standalone VPN solutions fell 5.3%
to $0.9 billion. IDC expects the firewall and VPN segments to remain ... Show more content on
Helpwriting.net ...
15 11 Key Forecast Assumptions for the Worldwide Network Security Market, 2012–2016
.................. 18 12 Worldwide Network Security Revenue, 2006–2016: Comparison of November
2011 and June 2012
Forecasts.................................................................................................................... 26
©2012 IDC
#235631
LIST OF FIGURES
P 1 2 Worldwide Network Security Revenue by Function, 2007–2016..................................................
14 Worldwide Network Security Revenue, 2006–2016: Comparison of November 2011 and June
2012 Forecasts.................................................................................................................... 27
#235631
©2012 IDC
IN THIS STUDY
This IDC study examines the worldwide network security market, including firewall, UTM, IDP,
and VPN solutions, from 2011 to 2016. It provides vendor revenue shares and market sizing for
2011 as well as market growth forecasts for 2012–2016.

Methodology
See the Methodology in the Learn More section for a description of the forecasting and analysis
methodology employed in this study. In addition, please note the following:  The information
contained in this study was derived from the IDC Worldwide Security Appliance Tracker as of
March 30, 2012.  All numbers in this document may not be exact due to rounding.  For more
information on IDC 's definitions and methodology, see IDC 's Worldwide Security Products

Kudler Fine Foods IT Security Report and Presentation –...
Kudler Fine Foods IT Security Report and Presentation – Top Threats CMGT/400 December 2,
2013 Kudler Fine Foods IT Security Report and Presentation – Top Threats Team B has been
commissioned to examine the Kudler Fine Foods' (KFF), frequent shopper, Customer Loyalty
Program that is currently in development. The team has also been asked to direct the system
development team to ensure the system is established securely so that it properly protects company
data and customer information throughout all stages of the system development process. In week 2,
the team will examine the Customer Loyalty Program for vulnerabilities in different areas of the
system. The study will define the possible threats ... Show more content on Helpwriting.net ...
The first of these threats is Social Engineering. Social Engineering according to Social–Engineer.org
(2013), is "the act of influencing a person to accomplish goals that may or may not be in the 'target's'
best interest. This may include obtaining information, gaining access, or getting the target to take
certain action." The employees themselves are the area of the system affected by this threat. Social
Engineering exploits their naivety. General lack of experience in recognizing this type of attack is a
major reason for its success. Education on what Social Engineering is and how to recognize attacks
coupled with company policies written, put into place, and enforced to prevent individuals from
divulging or even having access to certain information no matter the scenario is the recommended
course of action. Next is Denial of Service. According to Conklin, White, Williams, Davis, and
Cothren (2012), a Denial of Service (DoS) attack is an attack intended to disrupt a system or service
from operating normally. The attacker will attempt, through means of crashing the system, closing
out a logged on session, or overwhelming a machine with multiple

The Security Of A Home Network
Technology Report
Yu Lun Chou 1730799
MADS 6638 Computer Security Admin.
George Thucydides
4/26/2016
Table of content
Introduction
Inventory
Vulnerability Test
Protection
Support
Incident Response
Introduction Information play an essential role in everywhere. For a company, in order to run the
company well, information management is a necessary skill, and leaking information, odds are ,
causes significant damage to the company. Even though a private network will not have as great
damage as an organization, people like to keep their privacy. Therefore, the security of a home
network is as important as the security of a company, and it is more universal. Hence this article will
present how to built a ... Show more content on Helpwriting.net ...
It provides for home, business, and school, and it provides free and payable products for different
feature. According to the website Avast! Review – Top Antivirus Software, the free download
version offers virus and malware detection, integrated password manager, and browser cleanup. In
addition, Rubenking, a world–spanning purveyor of free antivirus protection, marks Avst high score
in their independent lab tests and antiphishing test (2015).
Different options for different feature with different price ↑
The feature list in different versions ↑ From the website About Adblock Plus, " Adblock Plus is a
free extension that allows you to – among other things – block annoying ads, disable tracking and
block domains known to spread malware"(2016). There are more illustration about the feature of
Adblock Plus from the same website: allow acceptable ads, disable social media buttons, and typo
protection (2016). Due to people experience the inconvenience while surfing the internet the ads
pops out and the more important point the adware attack, using Adblock Plus is the appropriate

choice.
The Schematic diagram of Adblock Plus ↑
After installing Avast and Adblock Plus online, it shows in extensions ↑ Moreover, Avast and
Adblock Plus are available from the internet and it is free. Therefore, people can reinstall these
softwares anytime.
Vulnerability Test According to the lecture Network Security Assessment(2007), in order to
eliminate the risk of vulnerabilities,

Firewall : A Good Firewall
The first line of defense that should be used to use to protect operating systems is a good firewall.
Firewall is known to keep intruders from getting into your network or system. Microsoft defines a
firewall as a software program or piece of hardware that helps screen out hackers, viruses, and
worms that try to reach your computer over the Internet ("Firewall: What It Is and How It Works",
2016). In Computer and Information Security, John Vacca mention that a good firewall or a system
that effectively incorporates several security features in one is a better option to protect a system
(Vacca, 2013). Vacca even went on recommending Secure Firewall from Secure Computing being
one of the strongest, government trusted and most secure firewall products available. Diagram 2 –
Firewall as a Protection Firewall Advantages There are multiple of advantages that comes with
firewalls, which includes: 1. When dealing with bad packet, a firewall is going from blocking
malicious packets that can harm the system and network. When dealing with firewalls is better to
approach a malicious packet by where to block them instead of focusing on whether to block
dangerous packet. A user operating system firewall can be constructed to provide security and
protection. In addition, a user can also add protection to multiple system by adding a network–based
firewall. 2. If the network ever gets compromised a System Administrator can be alerted in
advanced if the firewall is properly designed.

Firewall And The Security Levels
The modern world is being automated in all fields in various aspects. Automation is achieved by the
software development and this result in a faster work accomplishment and also in an easy, efficient
way. Meanwhile, this progress has also got proportionate threat of misusing the software. As the
internet has extended its roots providing access to various networks and also may provide access to
inappropriate users. So, it is necessary to protect these networks and this purpose is served by
network security. The security levels can be classified into two they are low level security and high
level security. Network security includes many components and firewall is one such component that
protects a network from various threats. Everything in ... Show more content on Helpwriting.net ...
For every firewall there are certain policies or a set of rules which describe the functionality of that
firewall. Firewall follows these policies and makes decision, whether to allow or decline a packet to
penetrate through the firewall. So, it is necessary to have a firewall which is subjected to follow a
good set of rules or policies.
Packet Filtering:
Packet filtering is the basic purpose of the firewalls in the network. The key theme of the packet
Filtering is that firewall shacks either in the host or in router and monitors the traffic and flow of the
data. The monitoring of traffic in the network is performed with respect to the policies of the
network security (Vadim Zaliva,2008).
Firewall Simulation:
Reproducing the behavior of the firewall is essential, especially in the field of testing of security and
the audit for the security. To reproduce a firewall physically, one has to carry out the pattern of the
security policies which are brought forth by the existing firewall and should be placed in the
circumstance of the environment provided by the network. Not only this, simulation of the firewall
also needs the construction of the organized model for the firewall and helping it with the files that
consists of the terms and policies (Wool.A,2001).
Policy Optimization is considered to be the most important field of research. Though the soul rules
of tend to be very simple but they need to be correspond with the large chunks of packets

Network Security Is Important For Protecting Your Computer

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