Howto set hostname, doaminname, ip address, search doamins, dns etc. pp. on an esxi server with commandline.
Sometimes you have to regenerate that f***ing dracut stuff (initial Ramdisk)
Sometimes you have to repair that damn linux system …
HowTo configure LSI megaraid using the CLI.
HowTo create a tripple mirror (3 disks) with LVM2 in linux.
Howto sign and verify files using SSL and 3 little shell scripts. This is a good way to make sure that no one is messing with your binaries …
Sometimes you need share a screen with one of your fellow linux admins and you don’t have Teams/WebEx or some other bullshit at hand.
Howto unlock the root account of any linux system without DVD or ISO file.