View source for Iptables

== Introduction ==
These are my notes about iptables. I find them to be helpful. YMMV :)

To to: research issue of some versions of iptables not supporting --dport

== Red Hattish ==

* To check iptables installation, ''rpm -q iptables''

=== Disable iptables filtering ===
Stop IP tables. In hattish distros:
<pre>service iptables stop</pre>

In some cases (debianish) this might be better:
<pre>iptables -F
iptables -A INPUT eth0 -j ACCEPT
</pre>
... assuming eth0 is the right device :)

=== Saving Iptables (after manual changes) ===
<pre>
# /sbin/service iptables save
</pre>
This executes the iptables init script, which runs ''/sbin/iptables-save'' and writes the current iptables configuration to ''/etc/sysconfig/iptables''. Upon reboot, the iptables init script reapplies the rules saved in ''/etc/sysconfig/iptables'' by using the ''/sbin/iptables-restore'' command.