How to install and run an IPSec-based VPN gateway with a firewall using a single bootable Linux diskettedistribution. A virtual private network (VPN) is a tool that enables the secure transmission of data over untrusted networks such as the Internet. . . .
How to install and run an IPSec-based VPN gateway with a firewall using a single bootable Linux diskettedistribution. A virtual private network (VPN) is a tool that enables the secure transmission of data over untrusted networks such as the Internet. VPNs commonly are used to connect local area networks (LANs) into wide area networks (WANs) using the Internet.

Perhaps you need to build a VPN between two offices but are not sure if the large infrastructure costs associated with an enterprise-level VPN solution are justifiable. The performance of applications that are intended for use over LANs (for example those that use network file sharing) seriously can be degraded over WAN connections. Likewise, lower bandwidth and longer latency in WAN connections can affect adversely the reliability and performance of groupware and thin-client applications. Perhaps you have a home office and would like to use your high-speed internet access to connect seamlessly and securely to your office LAN through an IPSec-capable router. Or perhaps you are just curious about VPNs and IPSec in general and want to experiment.

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