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Nutanix Cluster NCC host resolution check warning alert

For the past few month, I been troubleshooting for what seems to be DNS related issue which trigger a warning alert. I tried multiple steps such as: After all this, everything seems to be in good standing but the alert still coming back. Ran the NCC check via CLI and same result. I reference this…

Christian Marrero
1–2 minutes
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For the past few month, I been troubleshooting for what seems to be DNS related issue which trigger a warning alert. I tried multiple steps such as:

  1. Check all DNS records are in DNS
  2. Ensure no ACL or Firewall is blocking ingress / egress traffic from to CVM via port 53
  3. Ensure DNS Servers IP are consistent in ESXi as well in PRISM UI

After all this, everything seems to be in good standing but the alert still coming back. Ran the NCC check via CLI and same result. I reference this KB from the Nutanix Support Portal (1709) but still same issue.

After verifying my primary and secondary DNS Servers, I realize that the location of the other DNS server wasn’t local or was on the other side of the country so I decided to remove the remote DNS Server. Once I removed it from PRISM and ESXi, the CVM started to resolving IP to Hostname and Hostname to IP Address and the check result change to PASSED:

Now, the only issue I have with this, single DNS Server therefore, I opened a case with Nutanix Support to further investigate this matter. I will keep update this post once I get in a Zoom with Nutanix.

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