Is this possible using netfilter ? Can it be a proxy for ssh or sftp too ? here is the setup that I need: many client computers C1 to C30 connect to the internet using ONE gateway computer server running socks5 or netfilter proxy S1 client C1 connects to local LAN Socks/netfilter proxy S1 and authenticates using username U1 S1 connects to SSH server external server ES1 authenticates using username EU1. client C1 can transfer files, upload and download or do SSH or SFTP to ES1 now client C1 has NO knowledge of the usernames and passwords needed for ES1 a mapping file or some mechanism defines to the Socks proxy S1 that it needs to connect to ES1 using username EU1 if a client logs into it using username U1 Is the above possible in socks 5/netfilter or is it possible in squid or any other Linux proxy server for that matter ? Any help will be greatly appreciated Thanks chris
