Dear all,
Is it possible to detect and/or disable nmap SYN scan with ipfw?
I've added rule follow below, it catchs some packets from nmap but not all
deny tcp from any to me dst-port 22,25,53,80,443 \
tcpflags syn,!fin,!ack,!psh,!rst,!urg
\
tcpoptions mss,window,!sack,ts,!cc
may be is't rigth way to intrusion detection/prevention system, may be
snort?
Thanks,
bam