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...
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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...“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...[CentOS 7 Apache]: Permission denied: file permissions deny server access
Whenever I configure Apache on CentOS 7, most of the time I get “(13) Permission denied: file permissions deny server...How to Install/Update PHP to 7.4 on CentOS 7
Recently while looking onto my client’s WordPress dashboard, found a notification that the PHP version might be vulnerable and needs...Installing WSO2 API Manager on CentOS
WSO2 API Manager is an Open Source-based API Gateway that allows the development teams to deploy and monitor APIs and...Install MySQLnd extension for PHP 7.2.3 on PPC64LE with CentOS 7
I had installed PHP from source on PPC64LE with CentOS. I had enabled the MySQLi extension during configure options. For...Install phpseclib packages Net_SSH2 and Net_SFTP on PPC64LE with CentOS 7
I was deploying a web application on PPC64LE architecture with CentOS 7. As the machine wasn’t set up with web...Install Oniguruma on PPC64LE machine with CentOS
Have you ever tried installing Oniguruma on POWER PC with CentOS 7? Well, I did that and it was a...Automatically start OpenCA service via Systemd in CentOS 7
OpenCA service can be started using the SysVinit script located inside openca/etc/init.d folder. However, the script has to be started...Systemctl replaces Chkconfig and Service commands in CentOS 7
From our previous experience of CentOS/RedHat, we all knew that “chkconfig“ command is used for checking and updating runlevel information...ifconfig command not found on CentOS 7 Minimal installation
I have been using ifconfig command to configure network interfaces, enable or disable interface, display IP address information, change MAC...Why hosts.allow not working on CentOS 7 Minimal installation
Here’s a question asked by Gokul, one of the regular reader at Techglimpse – hosts.allow not working on CentOS 7...How to upgrade OpenSSL v1.0.1e to v1.0.2 on CentOS/RHEL
OpenSSL is an open source toolkit that provides tons of functionalities for Secure Socket Layer (SSL) and Transport Layer Security (TLS)...Upgrade PHP 5.3 to PHP 7.0 using yum on CentOS/RHEL/Fedora
My web server was running PHP version 5.3 for a long time and now I would like to en-cash the...