Well, I tried the source hacking approach and seem to have found success with relatively little pain. In ZServer/medusa/http_server.py, the "log" method of the class "http_request" can be modified to report the request hostname which is readily available via the get_header method in the same class. Here is my modified "log" method: def log (self, bytes): user_agent=self.get_header('user-agent') if not user_agent: user_agent='' referer=self.get_header('referer') host=self.get_header('host') if not referer: referer='' self.channel.server.logger.log ( self.channel.addr[0], ' - - [%s] "%s" %d %d "%s" "%s" %s\n' % ( self.log_date_string (time.time()), self.request, self.reply_code, bytes, referer, user_agent, host ) ) Note that this puts the request hostname at the end of the log entry.