hi! i'm trying to use the string match in a rule like this # iptables -A INPUT -s 1.2.3.4 -m string --string 'abc' -j TARPIT but it says 'You must specify --algo'. "iptables -m string --help" doesn't help at all. the "netfilter extensions howto" also doesn't mention this option. does anybody have any hint on what this option mean and what parameter to use with it? thanks in advance, angico. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com