gmane.mail.popa3d.user

matt mix | 3 May 08:49

cannot get this to work

Hello everyone I am going to just start off and say I am rather new to linux 
and this is truly my last resort. I have looked everywhere and tried quite a 
bit before asking for help and I appreciate any that you all can provide.

I have been trying for a couple days now to successfully setup this popa3d 
server to receive emails. I am using the basic out of the box openwall 
configurations and I have modified the postfix main.cf file the best I can 
and created a test user. I am able to locally connect and do a STAT w/ no 
problem. I dont know if this is a routing issue or a configuration within 
the postfix config files or not.

I have set my router to forward the traffic on port 110 that comes in on my 
dynamic dns that is managed by my router to the pop server. I have forwarded 
both udp and tcp traffic through iptables.

iptables -t nat -A prerouting_rule -i $WAN -p tcp --dport 110 -j DNAT --to 
192.168.1.153
iptables          -A forwarding_rule -i $WAN -p tcp --dport 110 -d 
192.168.1.153 -j ACCEPT

and I repeated the above for udp.

I checked my apache server and verified that it is working fine and 
forwarding to another machine successfully. By connecting with a non-local 
ip. However we cannot connect to the pop server via telnet or mail2web on 
that external ip. No traffic showed up heading to port 110 either when I 
looked for traffic on port 110 with wireshark locally.

Again thanks to anyone who can point me in the right direction. If there are 
any resources you all could recommend for me I would appreciate that as

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headers

Solar Designer | 5 May 19:31

setup on Linux behind DNAT (was: cannot get this to work)

Matt,

I'm afraid that you've posted this to the wrong list.  Your question has
almost nothing to do with popa3d; it is about general network services
and routing setup on Linux.  Since you appear to be setting this up on
Openwall GNU/*/Linux (Owl), you should have posted the question to
owl-users.  I am responding on popa3d-users for now since the question
was raised in here anyway, but you may want to move further discussion
to owl-users (please include an adequate amount of context if you do).

I've changed the Subject to be more descriptive.

On Thu, May 03, 2007 at 12:49:37AM -0600, matt mix wrote:
> I have been trying for a couple days now to successfully setup this popa3d 
> server to receive emails. I am using the basic out of the box openwall 
> configurations and I have modified the postfix main.cf file the best I can 
> and created a test user. I am able to locally connect and do a STAT w/ no 
> problem. I dont know if this is a routing issue or a configuration within 
> the postfix config files or not.

If you can connect "locally" (is that "telnet localhost 110"?) and "do a
STAT" (is that USER ..., PASS ..., then STAT?), then you have no problem
with the popa3d setup.

Yes, your problem could be with routing or the like.  No, it can't be
with Postfix, which provides the SMTP service, not POP3.

On Owl, the Postfix + popa3d setup should work almost out of the box -
all you need to do is enable and start the services:

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