Linked by David Bogen on Mon 26th Jan 2004 04:47 UTC
For many systems administrators, choosing and managing a VPN system is often quite a headache. Inflexible clients, servers, and protocols often prevent VPN's from being smoothly integrated into an already functioning network. The fact that many VPN clients are installed on users' home computers, well out of the reach of the systems administration team, often means that troubleshooting and upgrading VPN systems is time consuming and a struggle for both admins and users.
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I don't see any reason why anyone should bother with OpenVPN.
For permanent connections or certificate based solutions, IPSEC is the way to go. Seeing how it is now part of the 2.6 Linux kernel, and has been in FreeBSD and Solaris for years, there is no reason why you should go with anything else. It is available everywhere and requires no additional installations. Also, it is simply unbeatable in security.
For VPN solutions requiring user entered authentication, PPTP is probably the best choice. Great security and almost all Unix OS support interopperability with it (they can act as both server and client). L2TP is also a great solution, providing the best of both worlds (certificate and user entered authentication) and IPSEC for security. However, it is currently proprietary to Microsoft so I would stay away from it until we get Linux clients and servers.