In this article, I will take you through the steps to install firewalld on Ubuntu 20.04 LTS. firewalld is just like any other Linux firewall but with some special features. It uses an excellent component called zones to control traffic entering in your Systems. A zone is basically a collection of network cards that is ... Read more

In this article, we will look into two types of user in Linux - System Users and Human Users. As you probably know, every Linux System has an entity called User which performs a range of system management tasks. Each user will have a unique ID called UID(User ID) and GID(Group ID). Similarly, there is ... Read more

In this article, I will take you through the steps to install and configure SSHGuard to Block Brute Force Attacks on Linux Servers. SSHGuard is a free and open source application that works along with firewall to protect hosts from brute-force attacks against SSH and other services. It aggregates system logs and blocks repeat offenders ... Read more

In this article, we will see how to solve "-bash: /etc/iptables/iptables.rules: No such file or directory" error. In many cases, if you don't have the required packages installed then you always end up in error like this. Here also same thing happened with me when I was trying to use iptables command to create a ... Read more

In this tutorial, we will see how to define audit File System Rules in RHEL/CentOS/Rocky Linux. By this time you must have understood that Audit system operates on a set of rules that define what it is to be captured in the log. There are three types of audit rules - Control Rules, File System ... Read more

In this article, I will take you through the steps to install Ajenti control panel on RHEL/CentOS/Rocky Linux. Ajenti is a free and open source lightweight web-based control panel which is used to manage remote Linux Servers using everyday tools like a web terminal, text editor, file manager and others. It consists of Ajenti Core ... Read more

In this article, I will take you through step by step guide to install GNOME Desktop(GUI) on Rocky Linux 8. If you are looking to install GUI software in your system, then primarily you have three best option available in Linux - GNOME, XFCE and KDE. While all three of them are really nice but ... Read more

In this article, we will see how to check the permission of current logged In user in Linux. If you are a programmer or developer working on a production machine which runs on Linux Operating system then chances are that you will be having some non-root account to login and do your work. Once logged ... Read more

In this tutorial we will focus on defining audit control rules in Rocky Linux 8. Control rules are defined for controlling the settings and configuration of audit system itself instead of capturing any event logs. These rules are defined prior to writing the rules file. We use auditctl utility to interact with the audit system ... Read more