won't that iptables command block some legit traffic ? like a google search or something ? I remember blocking msn messenger with iptables and squid proxy, it was reliable but kinda heavy if you want to run only a firewall. Recompiling a kernel once is alright but if you have to do it on every update it can get time consuming :) anyways good luck. On Friday 03 November 2006 06:37, Adriano Frare wrote: > Dear Friends, > > I installed CENTOS 4.4 on server. > > I need DROP MSN Messenger using IPTABLES, I created the rule below. > > $IPTABLES -A INPUT -p tcp -m string --string "x-msn-messenger" -j DROP > > > > But, When I run IPTABLES, I have received follow error: > > DROP -> MSN Messenger > iptables v1.2.11: Couldn't load match > `string':/lib/iptables/libipt_string.so: cannot open shared object file: > No such file or directory > > > Where DO I find library libipt_string ? > > > > Thanks for help. > > > Adriano Frare > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos -- Charles Lacroix, Administrateur UNIX. Service des télécommunications et des technologies Cégep de Sainte-Foy (418) 659-6600 # 4266