[CentOS] iptables question

Tue Jun 17 03:52:51 UTC 2014
Chuck Campbell <campbell at accelinc.com>

>>>
>>>
>> As John R Pierce mentioned one of your first rule in the chain is
>> "RH-Firewall-1-INPUT  all  --  anywhere             anywhere", this
>> simply mean everything with "DROP" after it will be ignored. iptables
>> will work its way down the chain, therefore you have to options
>> 1. remove that line or
>> 2. move it at the bottom of the chain.
>
> I am clearly missing some emails, because I didn't see a reply from John R 
> Pierce. My apologies.
> I appreciate you restating this. I'll try to go make sense of iptables, given 
> the insight,
>
> thanks,
> -chuck
>

OK, I went to the list archive and found the email in question. Also, one after 
it that asked how I added these rules.

I ran a script after fail2ban was started. It looks like this:
#!/bin/sh
iptables -A INPUT -s 116.10.191.0/24 -j DROP
iptables -A INPUT -s 183.136.220.0/24 -j DROP
iptables -A INPUT -s 183.136.221.0/24 -j DROP
iptables -A INPUT -s 183.136.222.0/24 -j DROP
iptables -A INPUT -s 183.136.223.0/24 -j DROP
iptables -A INPUT -s 122.224.11.0/24 -j DROP
iptables -A INPUT -s 219.138.0.0/16 -j DROP

so, how do I get them in front of the RH-Firewall-1-INPUT, or do I add them to 
that chain?

-chuck



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