[lug] POP3 Isn't working

[John Hernandez]

Did you reload xinetd?  'service xinetd reload'

Is anything listening on TCP 110?  'lsof -i -n'

Bill Thoen wrote:
> 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
> 
> 
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