echoIRCd

Snomasks

Server-notice masks control which categories of server notice an operator receives. Set user mode +s to subscribe, then narrow with e.g. MODE <yournick> +s -c to drop a category. Operators receive all categories by default.

LetterCategoryNotifies about
aannounceGeneral announcements / global operator notices
cconnectClient connections and disconnects
ddnsblDNSBL hits
ffilterSpam-filter matches
gglobopsGLOBOPS messages
jchancreateChannel creation
kkillKILLs
llinkServer links / S2S events
nnickNick changes
ooperOper-up (OPER success/failure)
qquitClient quits
rrehashConfig rehashes
tstatsSTATS access
uacctregAccount registrations
voverrideOperator overrides (using privileges to bypass restrictions)
wgatewayWebIRC / gateway (spoofed-host) connections
xxlineX-line (G/K/Z/…) ban activity

The oper snotice stream can also be mirrored into a channel with the chanlog config option and to the system logger with syslog — see the Configuration reference.