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How to change IP adress of mailserver in Solaris?

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Operating Systems Solaris How to change IP adress of mailserver in Solaris?
# 8  
Old 12-29-2012
Guys, any ideas? Smilie
# 9  
Old 12-29-2012
Maybe it`s resolving issue?
Code:
# grep "^host" /etc/nsswitch.conf
# nslookup mail.azerfon.az

# 10  
Old 12-29-2012
First off, the documentation says to change /etc/hosts only if you are NOT running a name service.

I think you may have a dns cache problem - mailhost is probably cached by dns.

Clear the DNS cache (do this only if nscd (name serve daemon)is running, otherwise don't do this):
Code:
/etc/init.d/nscd stop
/etc/init.d/nscd start

This will clear the local DNS cache. Next try:
Code:
nslookup mailhost

Your problem has to be local to the UNIX box. You have clearly started and stopped sendmail.
# 11  
Old 12-30-2012
I was thinking that mailservice will take IP of mail server from hosts file, isn't it?

I did what you guys suggested:

Code:
-bash-3.00# /etc/init.d/nscd stop
-bash-3.00# /etc/init.d/nscd start
-bash-3.00# 
-bash-3.00# 
-bash-3.00# nslookup mail.azerfon.az
Server:         10.10.1.3
Address:        10.10.1.3#53

Name:   mail.azerfon.az
Address: 10.13.44.16

-bash-3.00#


[CODE]
Code:
-bash-3.00# 
-bash-3.00# grep "^host" /etc/nsswitch.conf
hosts:      files dns
-bash-3.00# 
-bash-3.00# 
-bash-3.00# 
-bash-3.00# cat /etc/nsswitch.conf 
#
# Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#

#
# /etc/nsswitch.dns:
#
# An example file that could be copied over to /etc/nsswitch.conf; it uses
# DNS for hosts lookups, otherwise it does not use any other naming service.
#
# "hosts:" and "services:" in this file are used only if the
# /etc/netconfig file has a "-" for nametoaddr_libs of "inet" transports.

# DNS service expects that an instance of svc:/network/dns/client be
# enabled and online.

passwd:     files
group:      files

# You must also set up the /etc/resolv.conf file for DNS name
# server lookup.  See resolv.conf(4).
hosts:      files dns

# Note that IPv4 addresses are searched for in all of the ipnodes databases
# before searching the hosts databases.
ipnodes:   files dns

networks:   files
protocols:  files
rpc:        files
ethers:     files
netmasks:   files
bootparams: files
publickey:  files
# At present there isn't a 'files' backend for netgroup;  the system will 
#   figure it out pretty quickly, and won't use netgroups at all.
netgroup:   files
automount:  files
aliases:    files
services:   files
printers:       user files

auth_attr:  files
prof_attr:  files
project:    files

tnrhtp:     files
tnrhdb:     files
-bash-3.00# 
-bash-3.00#

# 12  
Old 12-30-2012
I was planing to ask about nscd after you answer my first question but jim mcnamara was faster Smilie
I was also thinking that it should first read hosts file. It is little strange behaviour for me.
Add hostname without domain to /etc/hosts
Code:
10.10.1.86 mail mail.azerfon.az mailhost

I'm wondering could it resolve mailhost's IP if you would comment out dns in nsswitch.conf. You can try this if it is not very important production server.
But as we can see the problem is also with your DNS server, which response with old IP address. You must change mailhost's IP on your DNS.
# 13  
Old 01-07-2013
Guys, I changed mailserver name:

Code:
-bash-3.00# nslookup autodiscover.azerfon.az
Server:         10.10.1.3
Address:        10.10.1.3#53

Name:   autodiscover.azerfon.az
Address: 10.10.1.86

-bash-3.00#

Code:
# "Smart" relay host (may be null)
#DSmail.azerfon.az:sms.narmobile.az
DSautodiscover.azerfon.az

and here is my hosts file:

Code:
-bash-3.00# cat /etc/hosts
#
# Internet host table
#
::1     localhost       
127.0.0.1       localhost       
10.15.208.88    analizator      analizator.com  loghost
10.15.208.89    Analizator2     
#10.10.1.86     mail.azerfon.az mailhost        autodiscover.azerfon.az
10.10.1.86      autodiscover.azerfon.az         mailhost
10.75.58.83     sms.narmobile.az
-bash-3.00#

I tried send mail and can see that requests again going through 10.13.44.16 (which is not mentioned anywhere)

Its not production server, so I can test things there, but I have no idea what ca be the reason Smilie

GP81, I didn't get what you meant under:

Quote:
I'm wondering could it resolve mailhost's IP if you would comment out dns in nsswitch.conf. You can try this if it is not very important production server.
Can u pls let me know which line I should comment?
Here is my nsswitch.conf file:

Code:
-bash-3.00# grep "^host" /etc/nsswitch.conf
hosts:      files dns
-bash-3.00# 
-bash-3.00# 
-bash-3.00# 
-bash-3.00# cat /etc/nsswitch.conf 
#
# Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#

#
# /etc/nsswitch.dns:
#
# An example file that could be copied over to /etc/nsswitch.conf; it uses
# DNS for hosts lookups, otherwise it does not use any other naming service.
#
# "hosts:" and "services:" in this file are used only if the
# /etc/netconfig file has a "-" for nametoaddr_libs of "inet" transports.

# DNS service expects that an instance of svc:/network/dns/client be
# enabled and online.

passwd:     files
group:      files

# You must also set up the /etc/resolv.conf file for DNS name
# server lookup.  See resolv.conf(4).
hosts:      files dns

# Note that IPv4 addresses are searched for in all of the ipnodes databases
# before searching the hosts databases.
ipnodes:   files dns

networks:   files
protocols:  files
rpc:        files
ethers:     files
netmasks:   files
bootparams: files
publickey:  files
# At present there isn't a 'files' backend for netgroup;  the system will 
#   figure it out pretty quickly, and won't use netgroups at all.
netgroup:   files
automount:  files
aliases:    files
services:   files
printers:       user files

auth_attr:  files
prof_attr:  files
project:    files

tnrhtp:     files
tnrhdb:     files
-bash-3.00#

---------- Post updated at 11:32 AM ---------- Previous update was at 10:08 AM ----------

Hi again,

I found where the problem was.

Problem was in submit.cf file:
Code:
D{MTAHost}[mail.azerfon.az]

after modifing this line and restarting mail services, problem has been solved.

Thanks to all for the help!
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