[NTLUG:Discuss] Redhat 7.2, iptables & qpopper

[Stan Tigrett]

Thanks for the response..

I can connect to port 110 of the external interface via telnet if I am on the internal network or I'm working from the firewall itself.  I can't connect to that port via telnet from anywhere on the outside internet.

All my other 'wide open' ports work like I want them to (ssh, smtp, http).  They are available from the outside.  The service scan @ hexillion.com confirmed this.  It's only the pop3 port that is giving me trouble.  

----Original Message-----
From: discuss-admin at ntlug.org [mailto:discuss-admin at ntlug.org]On Behalf
Of Bob Byron
Sent: Monday, February 04, 2002 11:38 AM
To: discuss at ntlug.org
Subject: Re: [NTLUG:Discuss] Redhat 7.2, iptables & qpopper


Well, since your scan shows the ports are open, the first thing
I would do is to telnet into the port like this:
telnet xxx.xxx.xxx.xxx 110

If you see something like the following, then you are okay:
+OK POP3 killer-webs.com v2000.70rh server ready

Assuming that "killer-webs.com" would be your server.

Also, you can use the online tools at hexillion.com to aid
your trouble shooting.  Check out the online email dossier.

Bob