>> Attempting to change a network parameter in ADM HA [ System \ Administration \ Network Configurations \ IP Address, Second NIC, Host Name and Proxy Server] fails with error message "Network configuration change is not allowed in Citrix ADM HA setup" When Changing Network Settings in ADM

>> At this time [September 9th, 2020] there is no permanent fix.
>> Enhancement Request has been raised [NSHELP-24719]

>> Workaround:
. Connect to ADM by SSH / console and use the networkconfig command, option 5. 


. You can check in the GUI to confirm the change.



>> If you would like to add an Alternate DNS server use the following command:
echo "nameserver DNS_IP" >> /etc/resolv.conf

>> To make the Alternate DNS server change persistent after reboot use the following command:
echo "echo \"nameserver DNS_IP\" >> /etc/resolv.conf" >> /mpsconfig/svm.conf


Notes regarding Alternate DNS server:
1. This change is at the OS [BSD] level so you will not see the Alternate DNS server in the GUI.
2. Every time you run the networkconfig command or use the /mps/changenameserver.sh script, the /etc/resolv.conf will be wiped out and configured with the single DNS server provided.
3. Both commands must be ran on both nodes as this will not be part of the replication process.

 

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Problem Cause

>> Behavior is by design.