help/opers/snomask

   1 MODE <nick> +s <+|-><modes>
   2
   3 Server notice masks:
   4
   5     SNOMASK     DESCRIPTION
   6 -----------------------------------------------------------------
   7        +b     - Possible spambot/flooder warnings
   8        +B     - Connections rejected due to K-Lines and X-Lines
   9        +c     - Local client connections and exits
  10        +C     - Extended local client connections and exits
  11        +d     - Server debug messages
  12        +f     - Clients refused due to limits
  13        +k     - Server and service kill messages
  14        +n     - Local client nick changes
  15        +r     - Invalid usernames and DNSBL listings
  16        +s     - Generic server messages and oper kills
  17        +u     - Client connections without auth{} block
  18        +x     - New server introduction and split messages
  19        +y     - Juped channel join attempts, etc
  20        +Z     - Operspy usage