What is Homebrew? homebrew is known as “The Missing Package Manager for macOS”. It is used to install the UNIX tools Apple didn’t include with macOS in an extremely easy and flexible manner. Prerequisites A 64-bit Intel CPU or Apple Silicon CPU macOS Mojave (10.14) (or higher) Command Line Tools (CLT) for Xcode: xcode-select…

We all know the importance of highly available databases. The DB downtime can lead to unimaginable losses in revenue and reputation as well. This guide will demonstrate the easiest way to configure database backups locally and sending alert notification after each run. …

It’s been a long time I’ve written a story on Medium. Here I am back again. Today we will discuss about a new cloud adoption approach (not that new by the way) I would say not much experienced. The Multi-Cloud! What is Multi-Cloud? As name suggests the Multi-cloud is a strategy where we…

A DevOps aspirant who is learning about Continuous Integration and Continuous Deployment using Jenkins. There may be someone who is learning about Monitoring with Prometheus and Alert Manager. While learning all these tools and technologies the most important thing is “how you are going to send out notifications to users…

What to do when the auto-completion of bash shell commands are not working. It’s something which we expect these days to happen by default. In this short tutorial, I will demonstrate how we can enable auto-completion on Ubuntu and CentOS systems. Enable Bash Auto Completion on CentOS Linux Please follow the below steps one by one to…

This is one thing which everyone of us might have faced difficulty with or are still struggling to get a simple and exact answer. FYI both curl and wget support HTTP, HTTPS, and FTP protocols. Let’s get our hands dirty. Downloading Files and Directories from web with WGET Our first target is to download directories and underneath files from below location Index of /centos/7.9.2009/updates/x86_64 Edit descriptionmirror.myfahim.com

Kubernetes 1.20 was released on Dec 8, 2020! They call it “The Raddest Release”. Kubernetes as a Technology as a Platform and as a Business Model growing by leaps and bounds. Kubernetes team is continuing to work on improving user experience by enhancing the feature sets. This was a much-awaited…

When you deal with LVM you need to be extremely careful while performing deletion/removal operations. There will be changes when you no longer require a logical volume and want to remove the same. This article will demonstrate the step by step process of lv, vg, and pv removals. My Environment: Ubuntu…

How do I edit an invalid sudoers file? The system administrators understand the pain involved here. :) If your sudoersfile or any other file inside your /etc/sudoers.d has some invalid entries you will see errors like this - sudo-user@ceph-cluster:~$ sudo visudo >>> /etc/sudoers.d/test-user: syntax error near line 1 <<< sudo: parse error…