[brluglist] Smtp connection

[Kevin Bucknum]

qmail doesn't use the hosts file.  Without the flags to turn off the lookups
that we talked about earlier, it will do a DNS lookup. Look for the dns.c
file in your qmail source to see what it's doing. If you don't already, I'd
suggest running DJB's dnscache/tinydns programs and configure that to handle
returning names/numbers for your local machines.

-----Original Message-----
From: Chuck Tran [mailto:michoud at bellsouth.net]
Sent: Friday, March 08, 2002 2:45 PM
To: brluglist at brlug.net
Subject: RE: [brluglist] Smtp connection


Thanks for the suggestion. They are all internal PCs and they were
already in /etc/hosts file.
Any other ideas?


Chuck

-----Original Message-----
From: owner-brluglist at brlug.net [mailto:owner-brluglist at brlug.net] On
Behalf Of Tim Fournet
Sent: Friday, March 08, 2002 2:06 PM
To: brluglist at brlug.net
Subject: Re: [brluglist] Smtp connection


Sounds like you're having a problem with reverse DNS. Make sure the 
computer can do reverse lookups on IP addresses, and make any necessary 
corrections to the nameserver entries in /etc/resolv.conf. If they're 
all internal PC trying to connect, and they don't have real internet 
hostnames, you may consider adding them to /etc/hosts.

-Tim



Chuck Tran wrote:

>I need some assistance with an SMTP connection problem I am
>experiencing.
>
>My SMTP server is having difficulty accepting connections on one of my
>eth interfaces. I am using qmail.
>
>	lo - 127.0.0.1
>	eth0 - 192.168.0.1 (to LAN)
>	eth1 - x.x.x.x (to internet)
>
>>From the SMTP server itself, when I telnet to lo or eth1 to port 25, I
>immediately get a reply from qmail. But when I telnet to eth0 on port
25
>it takes just about two minutes before I get a response.
>
>Also, from a workstation (192.168.0.2) within my LAN I get the same
slow
>response when I telnet to port 25 on both interfaces on my SMTP server.
>
>Any assistance would be greatly appreciated.
>
>
>
>Chuck
>
>
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