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solsol
Asked: 2010-06-29 11:10:37 +0800 CST

iptables filter smtp?

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I though I filtered out smtp on port 25 but when I run iptables -L to list active firewall rules, I get the following still in my result:

ACCEPT     tcp  --  anywhere             anywhere            tcp dpt:smtp

should't that be removed, I have put the following rule in comments in my shell script, saved and reloaded iptables

# iptables -A INPUT -p tcp -m tcp --dport 25 -j ACCEPT
# iptables -A OUTPUT -p tcp -m tcp --dport 25 -j ACCEPT

UPDATE: the script I have used is here, only difference is that I commented out the port 25 lines http://linode.com/wiki/index.php/CentOS_IPTables_sh

firewall centos iptables

1 Answers

  1. Just use Centos builtin iptables mechanisms they are better designed that using a script, it flushes rules, loads modules, checks syntax etc.

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