It lets you configure hosts to give access to and which addresses and ports they may connect to. It also can be setup to ban connections to and from certain addresses. Configurable limits on amount of clients permitted to connect from an address and to an address. Configurable idle time limits. Uses nonblocking sockets.
Users can set their own idents, regardless of the uid the proxy is running as.
Basic facilities to 'detach' and reattach clients from proxy but keep their connections to the IRC server alive. Logs chats while you are detached and DCC sends them back to you when you reattach. Ability to reload configuration at run time. Can be run in the background or foreground. Karl Soderstrom is responsible for this Debian package.