Notes This is an issue found in my working version of Exchange, which is Exchange 2013 CU 11. It may exist elsewhere, but this is all I've got to test with. Problem Using the Exchange Admin Center, you either tried to import a certificate or complete a certificate request. It may have done nothing on the first attempt, but it gave you this error on the second attempt. Description What you're seeing is that you have a cert that was successfully installed on the server the first time … [Read more...] about A special Rpc error occurred. Cannot import certificate. A certificate with the thumbprint already exists.
Overview I came across this issue not too long ago and wanted to share my findings. First, this issue is not just an OpenVPN issue. If a service is dependent on certain sockets and ports being open but they are in use or closed, the service is going to fail. The good news is that the issue is fairly easy to fix on a running server with a little detective work and a few easy commands. … [Read more...] about OpenVPN – Process started and then immediately exited. Socket bind failed on local address. Address already in use.
I was recently looking over an environment running VMware vCenter 4.1 and saw in the tasks that a task called "check new notifications" was queued about a dozen time or so. The schedule for the tasks varied. Some of the tasks were before the current time and others were afterwards. Either way, there were about a dozen or so of them and they needed to be dealt with. … [Read more...] about vCenter 4.1 has “check new notifications” task queued multiple times