Pubserver was an online service to host Freeciv games and provided ranking and statistics amongst other things. It went down permanently in 2007.
“Some quick notes on pubserver.freeciv.org from a sysadmin's point of view. Please note that this...Pubserver system administration
“This document describes the software, published on Gna!, that was used to drive pubserver, the...Pubserver software
“This page is for discussion on everything needed to make the pubserver (in particular the...Pubserver Internals
“Pubserver was an online service to host Freeciv games and provided ranking and statistics...Pubserver
“In some versions (2.1-2.5) Freeciv supported the GGZ. With GGZ, you could start and join Freeciv...GGZ