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Devops

redhat subscription alternative | Local Repo

Introduction we need to know although redhat provide open source software products for enterprises but it have payment subscription to install packages and updates in...

SQLite cheatsheet

This article is a short list of useful SQLite commands to make your life easier. SQLite is an SQL engine intended mainly for embed...

GlusterFS multiple nodes In Centos/Almalinux

Introduction GlusterFS is a scalable filesystem through a network suitable for data-intensive. Tasks such as cloud storage and media streaming. GlusterFS is open-source software and...

Microservices with Python3

Introduction They were interested in microservices. How can microservices use them for increased agility and scalability? Microservices are architectural style and pattern structures which application as...

Certificate Authority with OpenSSL

how to set up a CA to issue your own certificates and how to tell other hosts to trust them

Hashicorp Nomad Cluster Lab on Centos & RockyLinux

Introduction We have been looking for alternative ways to utilize server resources for quite some time...

How to setup a NAS with XigmaNAS

In this article I will show you how to setup a NAS with XigmaNAS, formerly known as Nas4Free. A NAS (Network-attached Storage) is a network...

Home made snapshots with rsync

In this article I will show you how to make snapshots of your filesystem that looks likes a full copy but that copy isn't...

How to taint a node in kubernetes cluster to avoid pods scheduling on that node

Tainting a node means you don't want any pods to be scheduled on that node by kube-scheduler. For tainting a particular node, we have...

Creating a single control-plane Kubernetes cluster with kubeadm

Introduction Kubernetes is a cluster and orchestration engine for Docker containers. In other words Kubernetes is an open source software or tool which is used to orchestrate and manage Docker...

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