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How to disable SELinux
You may face Nginx or Apache web server blocking issues even when your firewall is disabled. SELinux is a security engine that may block some of the calls or permissions on your serve...
In Linux, Aug 16, 2021
How to create empty commits in Git
As a DevOps engineer, you must have heard at least something about GitOps. GitOps is a set of practices that allows to manage infrastructure and application configurations using Git a...
In Git, Aug 15, 2021
How to set up Nginx reverse proxy for your application
Using Nginx reverse proxy could be very useful, especially if you are developing an application with a framework that can run its own server like nodejs, python, ruby on rails, etc… I...
In Nginx, Aug 14, 2021
How to block visitors by country in Nginx
In some of mine previous posts, I wrote about how you can whitelist IPs in Nginx. In today’s tutorial, we are going to see how can we block specific countries in a few steps.
In Nginx, Aug 13, 2021
How to install Podman on Ubuntu 20.04
If you try to install Podman on Ubuntu 20.04 with the default Ubuntu packages, the installation will fail with the following error: E: Unable to locate package podman. In this tutoria...
In Ubuntu, Podman, Aug 12, 2021
How to list, remove and upgrade PostgreSQL cluster
As part of the PostgreSQL series, in today’s tutorial, we are going to see on how can we list, remove and upgrade clusters, the easy way.
In PostgreSQL, Aug 11, 2021
How to install Podman on AWS EC2 Amazon Linux 2 instance
If you are looking for a Docker replacement then Podman is the right choice for you. The installation process is quick and easy. In this tutorial, I’m gonna show you how to install po...
In AWS, Podman, Aug 10, 2021
How to whitelist IPs in Nginx
We all know what firewalls are for, but sometimes they can become a pain in the arse, and we all end up opening HTTP and HTTPS port by default. Let’s say we host multiple domains via ...
In Nginx, Aug 09, 2021
How to secure Apache with Let's Encrypt on Rocky Linux 8
As a part of the certbot installation in this tutorial, you will see how to secure your Apache web server with a free Let’s Encrypt SSL certificate. Let’s start.
In Apache, Aug 08, 2021
How to terminate connections in PostgreSQL
As part of the PostgreSQL series, in today’s tutorial, we are going to focus on how to list and terminate connections. terminate, kill and drop will be used interchangeably through th...
In PostgreSQL, Aug 07, 2021