Containers
Set Up a Highly Available Kubernetes Cluster with kubeadm
A single control plane node is a single point of failure. When it goes down, you lose the…
Author
Josphat Mutai
Backup
Clonezilla Disk Cloning and Imaging: Complete Guide for Linux
Clonezilla copies disks. That is the entire pitch. It reads only the used blocks on a partition, compresses…
Linux
Btrfs Snapshots with Snapper: Automatic System Rollback on Fedora and openSUSE
A bad dnf update can leave your Fedora system in a state where packages conflict, services refuse to…
Backup
Immutable Backups on Linux: Ransomware-Proof Strategy with MinIO, Restic, and Borg
Ransomware doesn’t just encrypt your production data. Sophisticated attacks target backup repositories too, because attackers know that destroying…
Backup
Install and Configure UrBackup Server and Client on Linux
Most backup solutions fall into two camps: agent-based tools that require manual scripting on every server, or enterprise…
Backup
LVM Snapshots for Consistent Server Backups on Linux
Backing up a database while it is running creates a problem most people don’t think about until it…
Databases
PostgreSQL and MariaDB Backup with Point-in-Time Recovery
File-level backups are useless for databases. If you tar a running PostgreSQL data directory, you get a corrupted…
Linux
Ubuntu 26.04 LTS (Resolute Raccoon): New Features, Changes, and What to Know
Ubuntu 26.04 LTS, codenamed Resolute Raccoon, lands on April 23, 2026. This is a long-term support release with…
Containers
Kubernetes Networking in Rancher: Services and Ingress
Every Kubernetes cluster needs a networking layer that actually works, and Rancher-managed clusters (RKE2 and K3s) ship with…
Containers
Kubernetes Storage Basics with K3s and RKE2
Containers are ephemeral by design. When a pod dies, everything inside it vanishes. That works fine for stateless…
Containers
Install Rancher Server on RKE2 (HA Production Setup)
Running Rancher as a single Docker container works for a lab. It does not work for production. One…
Containers
RKE2 High Availability: 3-Node Production Cluster on Rocky Linux 10
A single RKE2 server node works fine for labs and development, but production workloads need something more resilient.…