How To
Configure SSH on Cisco Routers and Switches
Telnet sends your username and enable password across the wire in cleartext. SSH does not, and on a…
Author
Josphat Mutai
How To
Cisco Device Base Configuration: Hostname, SSH, and Secure Access
A factory-fresh Cisco router or switch trusts whoever reaches the console, answers to the generic name Router or…
How To
CCNA 200-301 Study Guide and Roadmap
The CCNA 200-301 is a single exam that certifies you can install, configure, and troubleshoot a small enterprise…
How To
Upgrade openSUSE Leap 15 to Leap 16
openSUSE Leap 15.x is on the clock. The 15.6 release is the last of the 15 line, and…
AI
Best Mini PC for Local AI and Running LLMs
A 128 GB mini PC now holds a 70B model that a 24 GB graphics card cannot. It…
AI
Best GPU for LLMs in 2026: Tested by VRAM, Budget, and Model Size
The right graphics card for running large language models locally comes down to one number more than any…
AI
Claude Fable 5 Released: Features, Benchmarks, and Claude Code Guide
Anthropic just made its most capable model class available to everyone. Claude Fable 5 shipped on June 9,…
Proxmox
20 Things to Do After Installing Proxmox VE 9
The Proxmox VE installer is done in about ten minutes. Turning that fresh node into something you would…
Containers
Install Local OpenShift Cluster using CRC (OpenShift Local)
If you want to run a local Red Hat OpenShift on your Laptop then this guide is written…
Security
How to Create SSH Tunnels on Linux (Local, Remote, Dynamic)
An SSH tunnel moves a network port from one machine to another inside an encrypted SSH session. No…
Proxmox
ZFS RAID Levels on Proxmox VE: Stripe, Mirror, RAIDZ1/2/3
The RAID level you pick when you create a ZFS pool on Proxmox is permanent for that group…
Databases
Install OrientDB on Ubuntu 26.04 / 24.04 / 22.04
Most NoSQL setups make you pick a data model up front. OrientDB does not. It is a Java…