Hi all,
I have configured Post fix installation for a local dns server(with domain name as dns.internal) in OPEN SUSE 11.1 .I have set the dns A ,NS, MX record accordingly.Since i am learning i have used the same server for both dns as well as mail server and IP of the machine is 192.168.1.20.
i am able to send and receive mails locally(within 192.168.1.20) that is to/fro between local users without issues.Now i installed centos in another machine with IP(192.168.1.40) and joined this machine to my local dns server(192.168.1.20).I am able to ping the machines from each other but sending and receiving mails fail).
FQDN of the dns server(OPENSUSE 11.1) is suse1.dns.internal(machine 1)
FQDN of the centos machine is centos.dns.internal(machine 2)
when i run mailq command after sending the mail from user@machine1 to user@machine2 the following error i get and similar error while sending from user@machine 1 to user@machine 2.
root@suse1#sendmail -v guest_user@centos.dns.internal
#####gave some subject and text ,saved and mailed#######
root@suse1#mailq
-Queue ID- --Size-- ----Arrival Time---- -Sender/Recipient-------
1A32242045 599 Thu Aug 20 15:55:10 root@dns.internal
(connect to suse1.dns.internal[192.168.1.20]:25: Connection refused)
guest_user@dns.internal
12C0942066 1931 Thu Aug 20 18:19:44 MAILER-DAEMON
(connect to suse1.dns.internal[192.168.1.20]:25: Connection refused)
root@dns.internal
7A31142048 2182 Thu Aug 20 15:53:08 MAILER-DAEMON
(connect to suse1.dns.internal[192.168.1.20]:25: Connection refused)
root@dns.internal
05B3A42074 293 Thu Aug 20 19:46:43 root@dns.internal
(connect to centos.dns.internal[192.168.1.40]:25: Connection refused)
root@centos.dns.internal
987764206B 1943 Thu Aug 20 18:44:12 MAILER-DAEMON
(connect to suse1.dns.internal[192.168.1.20]:25: Connection refused)
root@dns.internal
6B33C42069 317 Thu Aug 20 18:43:55 root@dns.internal
(connect to centos.dns.internal[192.168.1.40]:25: No route to host)
guest_user@centos.dns.internal
599E44206F 2351 Thu Aug 20 19:41:42 MAILER-DAEMON
(connect to suse1.dns.internal[192.168.1.20]:25: Connection refused)
root@dns.internal
C28F74205E 2758 Thu Aug 20 17:19:12 MAILER-DAEMON
(connect to suse1.dns.internal[192.168.1.20]:25: Connection refused)
root@dns.internal
E559C42063 291 Thu Aug 20 18:19:38 root@dns.internal
(connect to centos.dns.internal[192.168.1.40]:25: No route to host)
root@centos.dns.internal
2FFC742054 599 Thu Aug 20 16:01:02 root@dns.internal
(delivery temporarily suspended: connect to suse1.dns.internal[192.168.1.20]:25: Connection refused)
guest_user@dns.internal
2C0D942077 1839 Thu Aug 20 19:46:51 MAILER-DAEMON
(connect to suse1.dns.internal[192.168.1.20]:25: Connection refused)
root@dns.internal
8A23042058 2758 Thu Aug 20 17:14:12 MAILER-DAEMON
(delivery temporarily suspended: connect to suse1.dns.internal[192.168.1.20]:25: Connection refused)
root@dns.internal
####Similarly while trying to send mails from centos machine to my suse machine #####
root@centos#sendmail -v root@suse1.dns.internal
root@centos#mailq
/var/spool/mqueue (2 requests)
-----Q-ID----- --Size-- -----Q-Time----- ------------Sender/Recipient-----------
n7KEIBPA002254 0 Thu Aug 20 19:48 <guest_user@centos.dns.internal>
(Deferred: Connection refused by suse1.dns.internal.)
<root@suse1.dns.internal>
n7KCjQcp003781 12 Thu Aug 20 18:15 <root@centos.dns.internal>
(Deferred: Connection refused by suse1.dns.internal.)
<root@suse1.dns.internal>
Total requests: 2
I tried checking for dig nslookup frm both the machines.No problems in name resolution.Should i do anything with the confguration files?
And also i got a mailer delivery mail
Date: Fri, 21 Aug 2009 12:35:14 +0530
From: Mail Delivery Subsystem <MAILER-DAEMON@centos.dns.internal>
To: <root@centos.dns.internal>
Subject: Warning: could not send message for past 4 hours
Auto-Submitted: auto-generated (warning-timeout)
– Attachment #1 --]
– Type: text/plain, Encoding: 7bit, Size: 0.5K --]
**********************************************
** THIS IS A WARNING MESSAGE ONLY **
** YOU DO NOT NEED TO RESEND YOUR MESSAGE **
**********************************************
The original message was received at Thu, 20 Aug 2009 18:15:26 +0530
from centos.dns.internal [127.0.0.1]
----- Transcript of session follows -----
<root@suse1.dns.internal>… Deferred: Connection refused by suse1.dns.internal.
Warning: message still undelivered after 4 hours
Will keep trying until message is 5 days old
– Attachment #2 --]
– Type: message/delivery-status, Encoding: 7bit, Size: 0.3K --]
Reporting-MTA: dns; centos.dns.internal
Arrival-Date: Thu, 20 Aug 2009 18:15:26 +0530
Final-Recipient: RFC822; root@suse1.dns.internal
Action: delayed
Status: 4.4.1
Remote-MTA: DNS; suse1.dns.internal
Last-Attempt-Date: Fri, 21 Aug 2009 12:35:14 +0530
Will-Retry-Until: Tue, 25 Aug 2009 18:15:26 +0530
– Attachment #3 --]
– Type: message/rfc822, Encoding: 7bit, Size: 0.7K --]
Date: Thu, 20 Aug 2009 18:15:26 +0530
From: root <root@centos.dns.internal>
To: root@suse1.dns.internal
Subject: Testing
User-Agent: Mutt/1.4.2.2i
Hi testing
Please help me in this regard…Thanks