[CentOS] Hacking Issue

Hi,

 

I am having an issue with someone accessing our server via a SIP/VOIP
connection. I have changed my iptables rules to drop all UDP traffic from
and too this IP address, but this traffic seems to still run through my
server. These are the iptables rules that I current have on the server.

-A INPUT -i eth0 -s 209.61.231.42 -p udp -j DROP

-A INPUT -i eth0 -d 209.61.231.42 -p udp -j DROP

 

Regards

 

 

Jennifer Botten

ETECH

 

 

 

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