what version of linux is smoothwall based on
SmoothWall Released in August 2000, Smoothwall GPL was developed by Lawrence Manning and Richard Morrell to provide a quick and easy-to-use solution to the problem of sharing their ISDN connections with the rest of their LAN. Created using Red Hat Linux, Smoothwall GPL originally had two simple functions: control the modem to dial and hang up, and to route TCP/IP packets from the LAN to the Internet connection, and back again. The LAN was hidden from the public network by NAT, applied using ipchains.