The following are GameSpy Master Servers hosted by C&C IRC.
- renmaster.cncirc.net
- renmaster-backup.cncirc.net
- renmaster-backup2.cncirc.net
- renlist.w3dhub.com
It is highly recommended that these be the only two servers in your servers configuration.
In the event of a future outage of the master server, the backup will kick in to meet the needs of the Renegade community through RenList.
More info here: