iptables not woking properly
Today, I have faced a peculiar problem while one of my server was on DOS attack. I got number of request from unknown IP address x.x.x.x.
I am using CentOS 6.0. I tried to block this IP x.x.x.x with following command as a root user.
iptables -A INPUT -i eth0 -s x.x.x.x -j DROP
but it could not help me.
my other rules are working fine.
Looking forward for help on the same.
Thanks in advance.