Nagios En
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Nagios is an open source network monitoring system that allows users to monitor infrastructure and detect problems. It has an estimated 250,000 users worldwide and can monitor servers, services, and other components. Nagios periodically checks hosts and services via plugins to monitor status and configuration and notify users of any issues via email, SMS, or other alerts.
Nagios En
- 1. Network Monitoring System http://www.nagios.org
- 2. What is ‘Network Monitoring system’? A system, that monitors status of nodes in a computer network and that notifies about slow or failing components there . B enefits of using Network Monitoring System : Health of your network: Up / Down status; Time logging when system is unavailable; Alerting about events via Email/SMS/Phone call. Network Monitoring System
- 3. A powerful open source network system that allows to monitor your entire infrastructure and business processes, enables to quickly detect and automatically fix problems inside your IT infrastructure. With an estimated 250,000 users worldwide, Nagios is the undisputed industry standard in enterprise-grade Open Source monitoring. Nagios was rated by eWeek Labs as one of several enterprise-class " Must Have Tools ". What is Nagios ?
- 4. Need to c heck a server (or service) , whether it is up and running ? – use Nagios. Need to get a report of downtime on your servers ? – use Nagios. Need to be quickly aware if a server is down (by email/pager/SMS) ? – use Nagios. Need to plan infrastructure upgrades? – use Nagios. Need to gain insight into in the health of the entire network through a centralized view? – use Nagios. Need a s pecific alert to go to a particular groups/individual only? – use Nagios. Need to g ather performance statistics on a server ? – use Nagios. When Nagios is used?
- 5. Why use Nagios?
- 6. What Nagios can monitor? Oracle S QL Server MySQL Postgre SQL etc… TCP/IP HTTP DHCP NTP FTP SSH Telnet POP3 IMAP SMTP etc… DB DNS PING CPU Memory Disk Space Processes etc… Protocols
- 7. Nagios runs on a server, usually as a daemon (or service). P eriodically run s plugins residing (usually) on the same server, they contact (PING etc.) hosts and servers on your network or on the Internet. You can also have information sent to Nagios. Event Handler s can also be configured to "act" if something happens You then view the status information using the web interface. There are 3 possible states : OK WARNING C RITICAL How Nagios works?
- 8. The only requirement of running Nagios is a machine running Linux (or UNIX variant) and C compiler . F ollowing software should be i nstalled : A web server (preferrably Apache) GD library version 1.6.3 or higher (required by the status map and trends CGIs) System requirements
- 9. Thank you! :) Author: Trusov Aleksey Any questions? http://www.nagios.org