Hello - how may I block one specific IP address, please? I've tried iptables -I FORWARD -d 192.168.1.210 -j DROP (as root) and have also added the same IP to the etc/hosts.deny file (also as root) as well, yet even after a full reboot iftop reports the address as still active. Frustrating - how may I block that address from having any access to my machine at all?
Well I wouldn't of used that rule set, I would of used this
iptables -I INPUT -s 192.168.1.210 -j DROP
Replace the IP above address with the IP that you want to block.
Of course remember that you need to restart the iptables service before it will take effect. You can do this by opening a console window as root and issue the command
service iptables restart