Presentation VPN
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Virtual private networks (VPNs) provide secure data transmission across public networks by opening an encrypted connection between two hosts. VPNs use encryption, tunneling, and authentication to create a private network and securely transmit data. Some benefits of VPNs include enhanced data security, lower costs compared to maintaining private leased lines, and the ability to securely connect remote users and networks. Common VPN protocols are PPTP, L2TP combined with IPsec, with IPsec providing confidentiality, integrity, authentication, and protection against traffic analysis. VPNs are commonly used for remote user access and network tunneling.
Presentation VPN
- 1. Mobile and Wireless Data Security Group work: Naim Latifi Alvaro Pariente
- 2. What is VPN ? Virtual Private Networks provides secure data transmission across public network infrastructure and incorporating data encryption and tunneling techniques to provide data security. VPN enable to create or join a private network across an existing public network by opening a temporary, encrypted connection between two host. It uses the existing structure that encompasses both LAN and WAN. Some benefits of using VPN: - data security is undoubtedly a major issue - losing password From the economic point of view, creating a VPN maybe be less expansive than maintaining leased lines. In fact lost data may turn out to be more expensive.
- 5. Security mechanisms through VPN Authorization - VPN connections are only created for users and routers that have been authorised. Data Encryption- the protocols used to create VPN connection allow encrypted data to be sent over a network. Authentication- This is a vital security concern. Packet Filtering – to enhance security of VPN server, packet filtering must be configured so that the server only performs VPN routing VPN can be build around various protocol depending on both the hardware and software capabilities . VPN’s recognized protocols are PPTP and L2TP combined with IPsec.
- 6. VPN cont’d VPNs today use of the IPsec protocol. It provides the following types: -Confidentiality - Integrity - Data origin authentication - Traffic analysis protection Three scenarios of VPN: - remote user access - Tunneling
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