Hi, I have created IPTABLES rules from command prompt. Save and Restore them with iptables-save and iptables-restore command. Hi, As advised in some of the tutorials, I tried to set IPTABLES rules first 'FLUSH' and then tried to set default policies of INPUT, OUTPUT and FORWARD to DROP as follows : ############### iptables -F INPUT iptables -F OUTPUT iptables -F FORWARD iptables -P INPUT DROP iptables -P OUTPUT DROP iptables -P FORWARD DROP ################ from command prompt. The moment I set "iptables -P INPUT DROP" System hangs. Tutorial says, first set all default policies to DROP and then setup rules to ACCEPT. Please tell me How it can be achieved. Thanks for support. __________________________________ Do you Yahoo!? Protect your identity with Yahoo! Mail AddressGuard http://antispam.yahoo.com/whatsnewfree