Migrate CentOS 8 to Rocky Linux
Earlier I had written about CentOS 8 error: Failed to download metadata for repo “AppStream” and followed by converting CentOS...
Linux
How to install Ansible on CentOS 8 Linux
Ansible is an open-source IT automation tool used to automate configuration management, provisioning, application deployment, orchestration, and many other IT...How to install Apache/httpd on CentOS 8 Linux
In this guide, you will learn to install Apache (most widely used webserver) on CentOS 8 Linux server. How to...How to upgrade git to latest version on CentOS
I’m running git v1.8 on my CentOS 7.8 machine. I would like to upgrade git to the latest version. The...Public Key Retrieval is not allowed – WSO2 MySQL Error
I have been using WSO2 API Manager for almost a year to easily and securely expose APIs to both internal...Error using GRANT with IDENTIFIED by password in MySQL
Question: I have been using IDENTIFIED BY ‘password’ along with GRANT statement for years in many MySQL versions. However, the...Firewalld fails to start on CentOS 8 with a DBusException
After upgrading my CentOS 7 to CentOS 8, when tried to start the firewalld service, encountered the error: Exception DBusException:...How to disable firewall on CentOS 8 Linux
This tutorial will help you to learn how to disable firewall on CentOS 8 and many other service activities like:...How to install PHP 8 on CentOS 8 Linux
This tutorial will explain how to install PHP 8 on CentOS 8 Linux and its dependent packages. Step 1: Enableremi-release-8.rpm...Open HTTP 80 and HTTPS 443 ports in firewalld on CentOS 8
Do you want to open ports HTTP and HTTPS in firewalld? In this tutorial, I will explain how to open...How to fix “Failed to synchronize cache for repo appstream”
Recently I had explored upgrading CentOS 7 to CentOS 8 and during the process, I encountered the error: Failed to...How to upgrade CentOS 7 to CentOS 8 Linux
This tutorial will guide you step-by-step to upgrade CentOS 7 to Centos 8. Step 1: Boot up any CentOS 7...Error Access denied need PROCESS privilege [MySQL]
I was trying to back up the database using the MySQL dump command, however, the command failed with an error...“firewall-cmd: command not found” on CentOS 8 [Solved]
Recently I started a CentOS 8 VM on my OpenStack setup. When trying to configure firewall rules using firewall-cmd, encountered...How to Install Certbot on CentOS Stream 8 [Let’s Encrypt]
In 2017, we wrote an article on migrating to Let’s Encrypt from StarSSL and also you’ll see a number of...Upgrade CentOS 8 to CentOS Stream
As you all know, CentOS 8 has reached its EOL on 31st Dec 2021, it’s time to upgrade your CentOS...How to Install xclip on CentOS 8
I recently started using CentOS 8 on my server and I couldn’t see the package xclip installed on CentOS 8...Failed to download metadata for repo ‘AppStream’ [CentOS]
I had installed a minimalist CentOS 8 on one of my servers. Installation went successful, however, when I tried to...How to check sudoers syntax
I have written many articles on sudoers in the past such as best practices and solved many errors related to...Find number of Lines of Code from GitHub Repository
How many lines of code did you write? Well, that was the question asked by one of the interviewers in...