Dear All Gurus, I want to deny a particular IP (172.16.158.111) address in my network to FTP on server (RHEL6), I'm trying to add the following[1][2] iptabls rules on server and getting error [3] [1] iptables -A INPUT -s! 172.16.158.111 -p tcp --dport 21 -j DROP [2] iptables -A INPUT -s! 172.16.158.111 -p tcp --dport 20 -j DROP [3] Using intrapositioned negation (`--option ! this`) is deprecated in favor of extrapositioned (`! --option this`). if I try following [4] it throws error like " bash: !172: event not found " (I think it tries to recall a command from history ..may be not sure ) [4] iptables -A INPUT -s !172.16.158.111 -p tcp --dport 21 -j DROP So how to go ...??? and any one guide to the right direction ????? how do I add a rule like IP or the PORTs is not equal to ? Warm Regards °v° /(_)\ ^ ^ Jatin Khatri Registerd Linux user No #501175 www.counter.li.org No M$ -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines