The ramblings of a computer geek
What do you do, when you have a virtualised vCenter VM, but you want to adjust something about it without locking yourself out of vCenter. In my case I had a vCenter server that I wanted to adjust the memory on. To do this without locking yourself out, you should follow these steps: 1. First … Read more
If you have a webserver that you want to check, but it requires authentication, you can still perform a check without seeing an error code. So for example, if you had a webserver where you wanted to check that the web server was responding on port 80, but didn’t want to have the plugin login … Read more
The VCSA appliance deployment has changed to be a Microsoft Windows only affair. Unless you perform a few steps first you could end up with the issues below. PROBLEM: During the deployment of the VCSA appliance you get the following error messages displayed: Failed to set the time via NTP. Details: Internal Error. Code 1 … Read more
If you need to determine the IOPS that are being used of the storage by the Virtual Machines you can run a PowerCLI script to connect to the vCenter and then collect the IOPS statistics. The script collects the read/write average IOPS and the read/write maximum IOPS for each virtual machine, because of this the … Read more
If you occasionally need to reboot a Linux box as a one off one evening you can perform the following commands using the at command. Note if you set a time that has just past it will perform the reboot the following day. So lets say its 16:15 and you want to schedule a reboot … Read more
PROBLEM: You need to check if two domain controllers are in sync with each other. SOLUTION: To do this you need to understand a bit about how Active Directory reports if a domain controller replication is in sync. There is something called a UTDV up-to-dateness vector that is basically a number representing what the domain … Read more
You’ll probably find yourself using the message tracking logs to find if an email has gone missing. But what should a normal working mail transaction look like? Well below shows it, where the mailboxes are stored on the same server. EventId Source Sender Recipients MessageSubject NOTIFY STOREDRIVER {} RECEIVE STOREDRIVER fred@sender.com {bob@receive.com} Hello! SUBMIT STOREDRIVER … Read more
In Exchange 2013 you can set an email to be put in the user’s Junk E-Mail folder based on if you think it is SPAM or not. This doesn’t use the Exchange built in spam filtering, it assumes you have a spam filter external to your Exchange environment that can tag an email that it … Read more
I had an interesting request, how to move a load of PDF files from one directory structure to another but leaving behind that directory structure so all the files end up in one directory in a huge list. I thought XCopy, but this appeared to be a better way. Note: Files with the duplicate names … Read more
VMware resource pools are a bit weird. They don’t work the way you would assume them to, so it is easy to get the wrong. This article details quite simply how you can use them for an example to illustrate this I will use my live production environment to illustrate how and how not to … Read more