Simple iptables question

deleted/ · 05-11-2006, 10:51 AM

When following a step by step guide for setting up Azureus it gave an instruction to open udp port 6972 using the command below.

/sbin/iptables -I INPUT -p udp --destination-port 6972:6972 -j ACCEPT

If i wanted to reverse this how would i go about it.

Note: I have no clue about iptables but do plan to get one soon!

Stephen.

Linux~Powered · 05-11-2006, 10:56 AM

/sbin/iptables -I INPUT -p udp --destination-port 6972:6972 -j DROP

Is that what you're looking for?

deleted/ · 05-11-2006, 11:04 AM

So this drops any packets on this port?

Linux~Powered · 05-11-2006, 11:20 AM

Yes. ACCEPT accepts packets. DROP drops them. I wrote a small piece on iptables. here

deleted/ · 05-11-2006, 11:31 AM

Brilliant. Thanks a lot and the guide is gonna come in real useful.