Linux Tips

You can block an user with an ip address from accessing your system using the iptables. For that follow these steps. 1. Open up a shell and login as root. 2. now type the command below to block the ip(XXX.XXX.XXX.XXX). # iptables -I INPUT -s XXX.XXX.XXX.XXX -j DROP 3. See whether the new rule has been added. # /sbin/iptables -L -n You can find other options to choose from with the following command: # iptables --help