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Dropping traffic from external ip address

MarkThornton

I am struggling to get a working firewall rule to drop or reject traffic from an external ip address. My mail server keeps getting hammered by IP addresses it reports as being from Iran. I created a firewall rule at the top position but it isn't having any effect. I thought the system processed from the top down. What am I missing?



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  • 0 in reply to MarkThornton

    I am trying to block all traffic that is both coming and going to an internal IP address (this server acts as a router for the network). so far I have tried the following: iptables -A INPUT -s 192.168.1.111 -j DROP & iptables -A OUTPUT -d 192.168.1.111 -j DROP, with 192.168.1.111 being the IP address I am trying to block traffic from. The local area network connects to br0....                Monkey.cool