Linux Tutorials
Install ncdu Disk Usage Analyzer on Linux
When the disk is filling up and you need to know what’s eating it, ncdu is the fastest…
Category
Linux Tutorials
Linux Tutorials
Install bat on Linux: cat with Syntax Highlighting
bat is the modern replacement for cat. Same interface, same pipe behaviour, but with syntax highlighting for hundreds…
How To
Install dmidecode and Check Hardware Specs on Linux
When you inherit a Linux box with no documentation and need to know what hardware is underneath, dmidecode…
Debian
Configure /tmp on a Separate Partition or tmpfs on Linux
Putting /tmp on its own filesystem isolates temporary files from the root volume and lets you mount it…
How To
Convert Video to MP3 on Linux with FFmpeg
FFmpeg is the Linux swiss army knife for audio and video conversion. Ripping the audio track out of…
Debian
Create and Use BtrFS on Linux: Subvolumes and Snapshots
BtrFS is a copy-on-write filesystem with native subvolumes, snapshots, transparent compression, data checksumming, and online resize. It’s the…
Linux Tutorials
Create Local Ubuntu Mirror with apt-mirror
Running a local Ubuntu package mirror is the right move for large fleets, air-gapped environments, and lab networks…
Linux Tutorials
Convert VirtualBox VDI to qcow2 with qemu-img
Moving a VM between hypervisors is usually a matter of converting the disk image format. VirtualBox writes to…
AlmaLinux
Install SELinux Man Pages on Rocky Linux 10
When SELinux blocks something and you need to understand why, the best documentation is sitting in man pages…
Debian
Protect GRUB with Password on Linux
Physical access to a Linux machine is game over unless the bootloader stops an attacker from dropping into…
Linux Tutorials
Install Java JDK 21 on Kali Linux
A lot of the pen-testing toolkit that Kali ships with assumes a working Java runtime somewhere on the…
Linux Tutorials
Install Kernel Headers on Kali Linux
Kernel headers are what you install when you need to compile something that plugs into the running kernel.…