... Apache HTTP Server Version 2.2 . Apache > HTTP Server > Documentation > Version 2.2 . ... Configuring Apache to listen on specific addresses and ports. ... When Apache starts, it binds to some port and address on the local machine and waits for incoming requests. ... For example, to make the server accept connections on both port 80 and port 8000, use: . ... One complicating factor for Apache administrators is whether or not an IPv6 socket can handle both IPv4 connections and IPv6 connections. ...