Today I was setting up VMware vSphere Hypervisor (ESXi 5.0) on a new server. Since I'm on the Kool-aid, the first thing I do when setting up a server is getting some kind of Nagios monitoring going. For several years, on ESXi servers, I have been using op5's check_esx3 plugin. Today was the first time I had set up an ESXi 5.0 server though, and when I first ran it after creating my Nagios user in ESXi I got the following error:
Permission to perform this operation was denied