Introduction SELinux (Security-Enhanced Linux) is a security module that provides mandatory access control (MAC) to Linux-based systems. The SELinux module works by ensuring that each process and user on the system only has access to the resources they need. It does this by defining security contexts for processes, files, and ... Read More

Introduction NUX Dextop is a third-party repository that provides a wide range of multimedia and desktop packages for Red Hat Enterprise Linux (RHEL) and CentOS. It is an essential repository for users who need to install various multimedia applications, such as media players, codecs, and video editors. NUX Dextop also ... Read More

Introduction Web servers are at the heart of the internet, and as technology grows faster and more complex, modern web servers need to be able to handle a multitude of requests. One of the most popular open-source web servers is NGINX, a high-performance software that offers scalability, security, and reliability. ... Read More

Introduction When you install a new kernel, the old ones are not automatically removed. After a few updates, your system could end up with a lot of unused kernels taking up valuable disk space. This can cause your system to slow down, and even worse, it can prevent important ... Read More

Vim (Vi IMproved) is one of the most popular text editors used in the Linux environment. It is a command-line based editor that was initially developed as a free and open-source alternative to the widely-used Vi editor. However, Vim has evolved to be much more than just an alternative. ... Read More

Introduction As a network administrator or system administrator, you will likely come across iptables at some point in your career. Iptables is a firewall and an essential part of Linux kernel-based operating systems. It acts as a packet filter by monitoring incoming and outgoing network traffic to and from your ... Read More

Introduction Kubernetes is a container orchestration platform that automates the deployment, scaling, and management of containerized applications. Helm is a package manager for Kubernetes that allows users to easily install, upgrade, and manage applications on top of Kubernetes clusters. Helm provides a simple way to package applications as charts, which ... Read More

Introduction Git is a version control system that allows developers to keep track of changes made to a codebase over time. Git tags are labels assigned to specific points in the history of a repository. They serve as markers that identify important milestones such as releases, versions, or checkpoints in ... Read More

Introduction Vi and Vim are text editors that are widely used in the Unix/Linux environment. These editors allow you to edit plain text files, system configuration files, and programming source code. Vi stands for visual editor, while Vim stands for Vi Improved. The editors were originally developed by Bill ... Read More

Introduction PostgreSQL, commonly known as Postgres, is a powerful open-source relational database management system that has been around for over 30 years. It is known for its robustness, scalability, and flexibility. It is also highly extensible and provides a wide range of features that make it suitable for a variety ... Read More