Clear DNS cache VCSA/PhotonOS

The last few weeks I’ve had to do a couple of IP changes on ESXi hosts. This always goes without a lot of issues but it can be annoying when you have to wait for the new IP address to be updated in DNS and then for it to be visible in vCenter. The quickest way to get the new DNS records, is to clear the DNS cache in VCSA. Since VCSA is based on PhotonOS, this will also work on other PhotonOS VMs....

21 October, 2020 · 1 min · Maarten Van Driessen

vCenter update fails: vCenter server is non-operational

Today, while I was updating vCenter in my lab, I ran into a strange issue. The update I was installing failed, when I wanted to try again, this ominous error message popped up. vCenter being non-operational left me a bit of a doom and gloom feeling but, thankfully, the fix is rather easy. Fixing the issue Open up an SSH session to your vCenter server and run the command below to remove the software_update_state....

4 September, 2020 · 1 min · Maarten Van Driessen