Symptoms
When adding vCenter or any other product such as NSX, VCD to vCloud Usage Meter using its Fully Qualified Domain Name (FQDN), the connection to it fails with a credential error. However, when you add any of those products to vCloud Usage Meter with its IP, the connection to it works fine. Troubleshooting with nslookup using the product FQDN and IP also works fine.A check of the vccol_main.log shows the following errors:[2021-07-26 15:27:16] | ERROR | t_credentials_create | com.vmware.um.vcsession.VCSession | VCSession login for server 1 failed with class com.sun.xml.ws.client.ClientTransportException The server sent HTTP status code 404: Not Found[2021-07-26 16:05:36] | INFO | ter collector thread | com.vmware.um.vccollector.VCCollector | vCenter collector2 | Starting collection for vCenter 3[2021-07-26 16:05:37] | ERROR | ter collector thread | com.vmware.um.vcsession.VCSession | vCenter collector2 | VCSession login for server
Cause
This is due to missing DNS information in /etc/systemd/network/10-eth0.network.
Resolution
Follow the steps below to fix the issue.
Procedure
Ensure that you have updated your domain and DNS details in resolve.conf as per KB 83945.SSH to the Usage Meter appliance as usagemeter.Switch to the root account:
sudo root
Back up network/10-eth0.network located at /etc/systemd/network by running the command:
cp /etc/systemd/network/10-eth0.network /etc/systemd/network/10-eth0.network.bak
Open the network/10-eth0.network.
vi network/10-eth0.network
Press i to switch into insert mode and start editing the file.Create an entry for DNS= and enter the DNS address as shown below.
Save your changes and exit the vi editor.
:wq!
Note: If you don't want to save your changes, enter :q! to exit the editor.
Reboot the appliance.
reboot
