[lug] POP3 Isn't working

[Bill Thoen]

I have a newly configured RH9 server, but I can't connect using POP3 to
get my mail. I edited /etc/xinetd.d/ipop3 file and set disable=no, and now
when I run chkconfig, pop3 is listed as on. I checked /etc/services and
pop3 is listed for port 110 for both udp and tcp. 

However, this time I set up a firewall (automatically during the system 
install) and I suspect that the problem lies there. But I don't know how 
to read the /etc/sysconfig/iptables file. Can someone who knows more take 
a look at this and tell me if that's the problem and how to fix it? here's 
my iptables file:

*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
:RH-Lokkit-0-50-INPUT - [0:0]
-A INPUT -j RH-Lokkit-0-50-INPUT
-A FORWARD -j RH-Lokkit-0-50-INPUT
-A RH-Lokkit-0-50-INPUT -p tcp -m tcp --dport 25 --syn -j ACCEPT
-A RH-Lokkit-0-50-INPUT -p tcp -m tcp --dport 80 --syn -j ACCEPT
-A RH-Lokkit-0-50-INPUT -p tcp -m tcp --dport 21 --syn -j ACCEPT
-A RH-Lokkit-0-50-INPUT -p tcp -m tcp --dport 22 --syn -j ACCEPT
-A RH-Lokkit-0-50-INPUT -i lo -j ACCEPT
-A RH-Lokkit-0-50-INPUT -p tcp -m tcp --dport 0:1023 --syn -j REJECT
-A RH-Lokkit-0-50-INPUT -p tcp -m tcp --dport 2049 --syn -j REJECT
-A RH-Lokkit-0-50-INPUT -p udp -m udp --dport 0:1023 -j REJECT
-A RH-Lokkit-0-50-INPUT -p udp -m udp --dport 2049 -j REJECT
-A RH-Lokkit-0-50-INPUT -p tcp -m tcp --dport 6000:6009 --syn -j REJECT
-A RH-Lokkit-0-50-INPUT -p tcp -m tcp --dport 7100 --syn -j REJECT
COMMIT

This was built by a utility called lokkit, but there's very little help 
that comes with that. My guess would be to just add lines like:

-A RH-Lokkit-0-50-INPUT -p tcp -m tcp --dport 110 --syn -j ACCEPT
-A RH-Lokkit-0-50-INPUT -p udp -m udp --dport 110 --syn -j ACCEPT

but I'm not sure, and I don't want to muck up my firewall. Also, a comment 
in this file says not to edit it directly. Any help would be appreciated!

TIA,
- Bill Thoen