Please find the steps to change the DNS server(s) of the vRealize Orchestrator Virtual Appliance 7.6.0( It may work on 8.x, I haven’t got chance to test 8.x). For each node that you want to change, perform these steps:
1. SSH to the vRealize Orchestrator Appliance as root.
2. Verify the current DNS configuration by running the following command:
ovfenv --key vami.DNS.VMware_vRealize_Orchestrator_Appliance
2. Change the DNS server or servers. To specify multiple DNS servers set DNS_server_IP as a comma-separated list with no spaces.
ovfenv --key vami.DNS.VMware_vRealize_Orchestrator_Appliance --value DNS_server_IP
For Example
ovfenv --key vami.DNS.VMware_vRealize_Orchestrator_Appliance --value 1.1.1.1,8.8.8.8
3. Reboot the virtual machine.