Usermin not accessible outside the network

We are trying to wean ourselves off of Squirrelmail but are running into trouble accessing Usermin from outside our network. We have allowed all packets destined for our servers on port 20000, but still we are blocked. It all works great within our network. Can you give some hints on how to get usermin working through our firewall if there are other ports to consider? We are using a Vyatta firewall. Thanks, Jeff

Status: 
Closed (fixed)

Comments

Howdy -- there aren't any other ports that need to be available for Usermin to work... all you'd need to do is make sure that port 20000 is available from the outside world.

So the key would just be to determine what component is blocking access to that.

Virtualmin doesn't setup a firewall by default... but just to make sure there isn't a firewall running on your Linux server, you could try running this command:

iptables -L -n

Thanks for the suggestions. It turned out our off network test computer had a firewall blocking. All others were getting it just fine. At your suggestion we are using APF and LMD and both are working great for us. Thanks for being there. Jeff