Create an SSH Keypair
March 25, 2026
Guide to creating SSH keypairs with RSA and modern algorithms, including key type comparison and OpenSSH version support
Technical Posts
A collection of technical guides, tutorials, and reference materials focused on Linux system administration, infrastructure management, and DevOps practices. Topics include ZFS storage management, SSH security and automation, Gentoo Linux configuration, container orchestration with Incus, network administration, and shell scripting techniques.
Browse by topic using the tags below each post, or explore the complete archive chronologically.
ZFS Cheatsheet - Essential Commands and Operations
March 22, 2026
Quick reference for ZFS snapshot management, pool creation, and essential commands
Incus Cheatsheet - Essential Commands and Configuration
March 19, 2026
Quick reference guide for Incus container commands, mounting directories, and running nested Incus instances
Live Expanding Disk Space On Windows Guest With ZFS
March 16, 2026
Step-by-step guide to expanding a Windows guest VM disk using ZFS and virsh, including recovery partition management
Snapshot Cannot Be Restored Due to Subsequent Snapshots
March 13, 2026
Fix "cannot be restored due to subsequent snapshot" errors when rolling back Incus container snapshots by configuring zfs.remove_snapshots
Reduce TTYs
March 10, 2026
Minimize resource usage on headless servers by reducing the number of active TTYs to one
Cleaning Gentoo Kernels
March 7, 2026
Automatically clean up old Gentoo kernel files to free boot partition space using eclean-kernel
Dedicated Server, Public Subnet, and Vswitch on Hetzner
March 4, 2026
Configure Hetzner vswitch with public subnet routing for virtual machines using layer 3 networking instead of layer 2
Hetzner Vswitch/VLAN Configuration
March 1, 2026
Set up Hetzner vswitch with VLAN tagging for static IP management across virtual machines on Gentoo
Cat.which.sh script
February 26, 2026
Quickly view the source code of any script in your PATH with tab completion