If you work with Kubernetes clusters daily, kubectl is the tool you reach for before anything else. This cheat sheet covers the commands I actually use in production, from quick cluster checks to deep troubleshooting sessions at 2 AM. Everything here is tested against Kubernetes 1.32+ and organized by the tasks you run most often. … Read more
CapRover is a free, open-source Platform as a Service (PaaS) that turns any Linux server into a fully functional app deployment platform, similar to Heroku but running on your own infrastructure. It uses Docker Swarm under the hood for container orchestration, Nginx for load balancing, and Let’s Encrypt for automatic SSL certificates. This guide walks … Read more
OpenShift Container Platform is Red Hat’s enterprise Kubernetes distribution that automates installation, upgrades, and lifecycle management for containerized applications. All cluster nodes run Red Hat CoreOS (RHCOS), which includes the kubelet and CRI-O container runtime optimized for Kubernetes workloads. This guide walks through deploying OpenShift 4.17 on a single KVM hypervisor using libvirt, with a … Read more
Introduction OpenStack is a popular technology with pooled virtual resources that speed up building and managing private and public clouds. With OpenStack, you can effectively handle cloud computing services, including compute, storage, Networking, image services, and more. Remember that the applications built in the OpenStack platform stand out and are mostly resilient to failure. You … Read more
With more than 100 million active devices, Macs are a popular choice for users worldwide. MacOS has been praised for its smooth performance and user-friendly experience. While being one of the most reliable operating systems out there, it can still suffer from some of the issues that affect the way the device functions. Some of … Read more
Backup is one essential way to ensure that you cushion your business against total disaster in case there is a major outage or accidental deletion of your precious data. Backup is a trusted disaster recovery technique and since it is almost imperative, this article provides you with a list of easy to use backup tools … Read more
In this dispensation of interconnected systems, it is utterly crucial that every asset, every document and every information is kept as far as possible from prying eyes and ears. What makes this worse is that there is a burgeoning number of these unsavory eyes and ears and keeping them off your systems is getting harder … Read more
To keep your organization secure from the incessant and unrelenting hackers, script-kiddies and everyone out there bearing bad motives, then you will have to improve your game every wake of day. Without a doubt, your servers and applications running on them are in constant danger of exploitation especially if they are exposed to the public … Read more
How do you manage your Kubernetes cluster? Do you login to the dashboard to check out what is happening with your Pods, your network policies and the rest? That is cool but today we are on a mission to make you consider another option especially if you have a penchant for the terminal and you … Read more
The Kubernetes Dashboard is a Web-based User interface that allows users to easily interact with the kubernetes cluster. It allows for users to manage, monitor and troubleshoot applications as well as the cluster. We already looked at how to deploy the dashboard in this tutorial. In this guide, we are going to explore integration of … Read more
This guide will teach you how to deploy a minimum viable Kubernetes Cluster on CentOS 7 by using kubeadm tool. Kubeadm is a command line tool created to help users bootstrap a Kubernetes cluster that conforms to best practices. This tool supports cluster lifecycle management functions such as bootstrap tokens and cluster upgrades. For Debian … Read more
It is the era of technological marvel and magic. The horizons of what our planet is yet to achieve cannot be vividly expressed or painted. This is because what is being witnessed presently technologically seemed impossible a century ago and hence telling what will be happening on our planet a century from now can be … Read more
What are the best Cpanel Alternatives?, Best Commercial Cpanel Alternatives?. Which are the top commercial web hosting control panels?. The tremendous growth of web sites and web resources can be partly attributed and explained by the growth of web hosting across the globe. It has been observed that more and more websites continue to be … Read more
If you’re running your Production Virtual machines in AWS, chances are you’ve encountered scenarios where you need to build your custom Amazon Machine Images (AMI). An AMI provides the information required to launch an instance, which may include Base Operating system, application dependencies, and other runtime libraries required. Multiple instances can be started from a … Read more
Red Hat Enterprise Linux 8 (RHEL 8) is now available for Production use with lots of developer-friendly capabilities. RHEL 8 official release by Red Hat Inc, the company behind Development of Red Hat Enterprise Linux (RHEL) 8 was announced on May 7, 2019. With the release of Red Hat Enterprise Linux 8 (RHEL 8) comes new … Read more
Ubuntu 26.04 LTS, codenamed Resolute Raccoon, lands on April 23, 2026. This is a long-term support release with five years of free security updates through April 2031, extendable to ten years with Ubuntu Pro. For anyone running 24.04 LTS, this is the first upgrade path to a new LTS, and the jump is significant: kernel … Read more
Managing nodes is where Kubernetes operations get real. Anyone can spin up a cluster, but keeping it healthy over weeks and months requires knowing how to inspect nodes, schedule maintenance windows, and scale capacity without dropping traffic. Rancher gives you a unified view across clusters, though the real power still lives in kubectl. This guide … Read more
Kubernetes RBAC works, but it gets tedious fast when you’re managing multiple teams across dozens of namespaces. Rancher Projects sit on top of native Kubernetes RBAC and let you group namespaces together, assign permissions at the project level, and enforce policies (network isolation, resource quotas) across all namespaces in that group. This guide walks through … Read more
Most Rancher installation guides start with RKE2, Helm charts, and load balancers. That’s the right approach for production, but it’s not how you should learn Rancher. The fastest path from zero to a working Rancher instance is a single Docker container on a single server. Fifteen minutes, no Kubernetes prerequisite, no external database. This guide … Read more
Every Kubernetes cluster needs a networking layer that actually works, and Rancher-managed clusters (RKE2 and K3s) ship with sane defaults that handle most of what you need out of the box. The catch is understanding which pieces do what, because “networking” in Kubernetes covers everything from pod-to-pod communication to exposing services externally with a real … Read more
Containers are ephemeral by design. When a pod dies, everything inside it vanishes. That works fine for stateless web frontends, but the moment you run a database, a message queue, or anything that needs to remember state across restarts, you need persistent storage. Kubernetes solves this with a layered abstraction: PersistentVolumes, PersistentVolumeClaims, and StorageClasses. The … Read more
Running Rancher as a single Docker container works for a lab. It does not work for production. One host goes down, your entire multi-cluster management plane goes with it, and you are left scrambling to restore from a backup while every downstream cluster loses contact with its management server. The correct way to run Rancher … Read more
A single RKE2 server node works fine for labs and development, but production workloads need something more resilient. If that one node goes down, your entire cluster goes with it. The fix is straightforward: run three server nodes behind a load balancer so etcd maintains quorum and the Kubernetes API stays reachable even when a … Read more
If you’ve been paying Docker Desktop license fees for local container development, there’s a better option. Rancher Desktop gives you a full local Kubernetes cluster, a container runtime of your choice, and every CLI tool you need, all completely free and open source. Rancher Desktop runs K3s under the hood, which means you get a … Read more
RKE2 (also called RKE Government) is Rancher’s next-generation Kubernetes distribution built for security-conscious environments. Unlike K3s, which optimizes for simplicity and edge deployments, RKE2 targets CIS Kubernetes Benchmark compliance out of the box. It ships with FIPS 140-2 validated crypto modules, runs etcd as a static pod instead of SQLite, and uses Canal CNI with … Read more
K3s strips Kubernetes down to a single binary under 100MB. No etcd cluster, no cloud-controller bloat, no separate container runtime install. You get a fully conformant Kubernetes cluster from one curl command, which makes it ideal for edge deployments, home labs, CI environments, and small production workloads where running full-fat K8s would be overkill. This … Read more
A well-written bash script covers 90% of Linux backup needs without installing anything. tar, gzip, and a systemd timer are already on every server. No agents, no daemons, no package repositories to configure. The script in this guide handles multiple source directories, three compression options (gzip, bzip2, xz), disk space checks before each run, retention … Read more
