Server protocol:Server ID

Server id's (SID's) are unique id's that identify a server. They start with a digit and are followed by 2 alphanumerical characters.

You can (theoretically) use a SID anywhere a server name is used, like: :server.name NOTICE #chan :Hello Can become: :001 NOTICE #chan :Hello

Examples of server id's: 001, 0AA, 9ZZ, ..

Older UnrealIRCd versions used server numerics which was a very similar feature but required base64 encoding/decoding. With SID's this is not necessary.

See also:
 * User ID