Paranoid penguin - Linux VPN technologies
Virtual private networks, or VPNs, are useful and convenient things. Road warriors use them to connect to their home networks securely while traveling; geographically dispersed organizations use them to encrypt WAN links that use public bandwidth; and wireless LAN users use them to add a layer of security to their WLAN connections.
A number of VPN packages are available for Linux: FreeS/WAN, OpenS/WAN, PoPToP, OpenVPN and tinc, just to name a few. But how do you choose the right one for a given job?
By Mick Bauer at Linux Journal.
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