sha256sum -c: the checksum line that is not two spaces
A checksum file is the least interesting part of a release until the day a download is corrupt, and then it is…
Linux
Linux for Windows administrators: connecting, disks and everyday commands, explained from the Windows side.
nano editor tutorial: a hands-on practice walk-through
nano is the editor for people who just need to change a line and get on with their day. It opens the…
vi editor tutorial: a hands-on practice walk-through
vi is the editor you are most likely to find already installed: on Linux servers, on ESXi hosts, in rescue shells, usually…
Grow a Linux disk after extending a VMDK
A hands-on Ubuntu Server lab: extend the VMDK from 60 to 80 GB in vSphere, then grow the partition, the LVM physical volume, the logical volume and the ext4 filesystem, checking every layer as you go.
Connect to a Linux server from Windows
The full path from a Windows workstation to a working Linux session: checking the OpenSSH client, the first connection and the fingerprint prompt, moving to keys, the config file, copying files, and reading the error when it refuses you.