Server Commands/ZLINE
ZLINE [[!][+|-]<mask> [[<target>] <expiration> :<reason>]]
Sets (+), removes (-) or lists zlines (global ip bans). The target can either be specified as * for a global zline (all servers) or a specific server can be specified for a local zline confined to the specified server. The expiration can be specified either in seconds or as a formatted time, eg 2d5m3s (2 days 5 minutes 3 seconds. If the mask would not be permitted due to it being too wide or affecting too many users, the "!" prefix may be used to force the Z-line to be set anyway.
