Hi I need a VPN solution that will work to a CentOS4 server thats behind a NAT'ing hardware firewall appliance. This has to be able to work on Windows and OSX and i have to access a server on the LAN. I have looked at OpenVPN but for some reason i'm having issues with generating certificates using their howto and i used the rpm from Dag. While i continue my fight with this is there any other options out there? thanks