How to change DNS on System Manager
This article will show you how to update the DNS entries on an Avaya System Manager

This article assumes that you have an ssh login to your Avaya System Manager. Often times we don't have root access to our Avaya System Manager servers. The command listed below should be run at your own risk and has only been tested on version 7.x and higher. This article is meant as a reference and intlx Solutions assumes no responsibility for how this information is used.

Details
Connect to your System Manager using your favorite SSH client. Once connected to the command line we want to first record our existing DNS server entries by running

cat /etc/resolv.conf
search Lab1.intlxsolutions.com
nameserver 10.200.3.249
nameserver 127.0.0.1


After recording the existing DNS server IP address we want to run the command sudo /opt/Avaya/vsp/VMWrapper/changeIPFQDN.sh -DNS 10.200.3.248 replacing 10.200.3.248 with your DNS server IP address. If you have multiple servers you can separate them with a comma but enclose the DNS servers with a single quote, for example '10.200.3.247, 10.200.3.248'

sudo /opt/Avaya/vsp/VMWrapper/changeIPFQDN.sh -DNS 10.200.3.248
Validating DNS IP format
>> Validating 10.200.3.248 .....

Do you want to continue? [y/n]:


You will want to type in y if you are good with the changes. Note the text at the bottom stating that JBoss may be restarted as part of this process. You need to ensure that you plan for this because any applications that use your System Manager as a license server may go into license error mode for a brief period of time.

Verify your settings from the System Manager Bash CLI

cat /etc/resolv.conf
search Lab1.intlxsolutions.com
nameserver 10.200.3.248
nameserver 127.0.0.1
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