Hello,

I'm trying to setup a mail server using citadel, it's installed and running, checked the services and seems to be ok.

Now, I'm supposed to access the web interface using a defined port, let's say port 2000 (was specified at setup), through apache2.

If I do a "lynx localhost:2000" locally, I can access the web interface, but I can't do such from the outside, if I try "http://172.XX.XX.XX:2000" on my web browser it wont load. (This is a remote server)

Firewall is down, I did a "ufw disable", but still can't access it. I might be confused or overlooking something, so I'd greatly appreciate any help.

Thank you.

To rule out the obvious, what do you mean by remote? You reference a 172. address range and most, but not all, of this range is not route-able and you will need to be on the same LAN to access it. So when you say remote, are you on the other side of a router or on the same network? Can you remotely access other ports on this server?

Check the output of netstat to see if the port you opened is bound to the loopback interface or to your Ethernet interface as this could explain localhost connections only. From the remote host you could also run a check with nmap to see if that port is viewed as open.

Well, the problem was a firewall between the server and internet, I was not notified of this when I was told to work on the server.

Thank you.