Mask 	  	        Hex value   Description
1 	SNO_OLDSNO 	0x1 	unsorted old messages
2 	SNO_SERVKILL 	0x2 	server kills (nick collisions)
4 	SNO_OPERKILL 	0x4 	oper kills
8 	SNO_HACK2 	0x8 	desyncs
16 	SNO_HACK3 	0x10 	temporary desyncs
32 	SNO_UNAUTH 	0x20 	unauthorized connections
64 	SNO_TCPCOMMON 	0x40 	common TCP or socket errors
128 	SNO_TOOMANY 	0x80 	too many connections
256 	SNO_HACK4 	0x100 	Uworld actions on channels
512 	SNO_GLINE 	0x200 	glines
1024 	SNO_NETWORK 	0x400 	net join/break, etc
2048 	SNO_IPMISMATCH 	0x800 	IP mismatches
4096 	SNO_THROTTLE 	0x1000 	host throttle add/remove notices
8192 	SNO_OLDREALOP 	0x2000 	old oper-only messages
16384 	SNO_CONNEXIT 	0x4000 	client connect/exit (ugh)
32768 	SNO_AUTH 	0x8000 	auto glines/shuns
65536 	SNO_DEBUG 	0x10000 debugging messages (DEBUGMODE only)
131072 	SNO_NICKCHG 	0x20000 client nick changes (ugh)

standard +s	 	SNO_DEFAULT (SNO_NETWORK | SNO_OPERKILL | SNO_GLINE)
standard +s when +o/O 	SNO_DEFAULT | SNO_HACK2 | SNO_HACK4 | SNO_OLDSNO)
only opers may set 	SNO_OPER (SNO_CONNEXIT | SNO_OLDREALOP)

To receive only operkills, use /mode  +s 4
To receive operkills and glines, add the values:

    /mode <nick> +s 516

    (512+4=516) 

