On Sat, Mar 22, 2008 at 11:14:28PM -0300, =?ISO-8859-1?Q?Daniel_Dias_Gon=E7alves_ wrote: > Which methods used to prevent OS detection and uptime (nmap) ? > http://nmap.org/misc/defeat-nmap-osdetect.html#BSD > I tried, but not work.
The TCP Drop SYN+FIN sysctl might help. % sysctl -d net.inet.tcp.drop_synfin net.inet.tcp.drop_synfin: Drop TCP packets with SYN+FIN set Regards. -- Rui Paulo _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"