Re: how to tell if pop3 or imap services are running?

["Todd A. Jacobs" <nospam codegnome org>]

On Sun, 29 Jun 2003, Jay Moore wrote:

> timeouts etc.  I have a Netgear firewall appliance that has port 110
> open, however, I am unsure if the box itself has this port open.  I'm
> slowly still figuring this stuff out, so any direction at all would be
> helpful. thanks jay

As root, run:

	tcpdump -n port 110

and then as yourself run:

	telnet <pop3_server_ip> 110

If you don't get a connection via telnet, check the output of tcpdump and 
see if your traffic is leaving the box, and if you're getting any response 
back.

iptables/ipchains shouldn't be stopping client-side pop3 connections, but 
I suppose anything is possible. So, if your traffic is going nowhere fast, 
that's where I'd look next.

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