Unidesk 2.6 Upgrade Problem
One of my customers was upgrading their Unidesk environment to 2.6 and we ran into a problem. It proved to be an incredibly specific problem and not at all tied to Unidesk (just tied to the way they push this particular upgrade), but the troubleshooting process was very interesting and so I think it's worth putting this knowledge out there. As part of the upgrade, the Unidesk Management Appliance needs to install an OVF of itself (which is an uncommon but not unprecedented behavior for virtual appliances). That is the step that was failing. The most common source of that failure is a firewall; if port 443 is blocked between the Management Appliance and the ESXi host, that deployment will fail. We went round and round with the network team, checking firewalls and couldn’t find any records of ports being blocked, but we couldn’t communicate with the ESXi hosts (although we could communicate with the vCenter server just fine). Eventually, we did a TCPDump ...