Recently I had issues with configuring CardDAV-Sync and CalDAV-Sync along with Owncloud after a fresh Android installation. Specifying the well-known URLs just produced several error messages inside the app:

https://my-server.tld/owncloud/remote.php/caldav/principals/USER/ …

I was puzzled when I saw that the ESXi hosts of my new lab are generating critical CPU fan errors. Strange, I'm sure I mounted the fan correctly - otherwise the system would have been shutdown automatically to prevent serious damage. 🙂

I had a look at the IPMI web interface and saw that a fan is detected - but why is …

In 2008 I started working as VMware administrator and thus also began using vSphere at home. You might know this - as an IT person you want to have a lab at home that can be compared with the infrastructure at work. 🙂

The hardware half-life is quite short and especially when virtualizing workloads you can reach memory …

As preparation for a restore test, I removed the master boot record (MBR) of a Linux system recently:

1# dd if=/dev/zero of=/dev/sda bs=512 count=1

This command fills the first 512 bytes (containing the partition table and bootloader) of the first hard drive (/dev/sda) with zeroes (/dev/zero).

The problem is when you …

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If a host has …