Linux / Unix: How Can I Block ip address of spammers with iptables?

Posted by Jiltin     16 June, 2009    1,745 views   

great_firewall.jpgHow do I block ip address of spammers with iptables based firewall under CentOS Linux 5?

You can simply block IP address of spammers by editing /etc/sysconfig/iptables file under, CentOS Linux, Fedora Linux or RHEL 4.x/5.x etc

Open file /etc/sysconfig/iptables, Append ip address of spammers as follows:

-A RH-Firewall-1-INPUT -s SPAMMER-IP -j DROP
-A RH-Firewall-1-INPUT -s SPAMMER-SUBNET-BLOCK -j DROP

Save and close the file. Just restart the firewall:

# /etc/init.d/iptables restart

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Comments
December 8, 2009

hi i needed an ip address of my own i felt that it must be spam free and i got the best solution from http://www.ip-details.com………..

Posted by david
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