Troubleshooting vSphere update woes

It’s 2020 and I still occasionally stumble on products that can’t handle international characters. I’ve been running my update rounds on our vSphere environment, but one host simply refused to perform is update compliance check. To troubleshoot, I enabled the ssh service and remoted in to the host, looking for errors in /var/log/vua.log. Sure enough,… Continue reading Troubleshooting vSphere update woes

Fixing “No DKIM keys saved for this domain” in EOP and Office365

Sometimes a newly added domain in Microsoft EOP will not let you enable DKIM from the web user interface. The only workaround I know of is to prepare the domain using PowerShell. To connect a PS session to O365, I use the following script, ripped straight from Microsoft’s documentation: After waiting for an eternity for… Continue reading Fixing “No DKIM keys saved for this domain” in EOP and Office365

Two steps forward and one step back

I’m happy to report that oxcrag.net has been upgraded from a crappy ADSL line to a fibre based connection, which has improved uplink speed for the server tremendously. Unfortunately, it looks as though newer technology doesn’t always imply that everything gets better: Unlike what the representative for the fibre project stated, there’s no sign of… Continue reading Two steps forward and one step back

IPv6 guests in KVM

I’ve been experimenting with IPv6 at home, and spent some time trying to get it working in my virtual machines. The first symptom I got was that VMs got a “Network unreachable” error when trying to ping6 anything but their own address. The cause was a complete brainfart on my side: We need a loopback interface… Continue reading IPv6 guests in KVM

When the French attack…

A consultant working with our Alcatel phone system encountered a weird issue that caused us some problems the other day. When attempting to install an Open Touch Media Server (used for receiving fax, for example), the entire vCenter client environment froze, and a reload of the page resulted in the following error message: 503 Service… Continue reading When the French attack…