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Introduction Sudo stands for SuperUser DO and is used to access restricted files and operations. By default, Linux restricts access to certain parts of the system preventing sensitive files…

Introduction Multi-user systems, such as Linux, require setting up and managing file permissions that ensure only authorized users have access to files they are supposed to. If you need to change a f…

Introduction ZooKeeper is an Apache Software Foundation project designed to simplify monitoring and managing group services. It uses a simple interface for its centralized coordination service that m…

Introduction The hostname of a machine is a label that differentiates one system from another on a single network. During the installation of Centos 8, either the admin defines a hostname or one is a…

Introduction Firewalls represent the cornerstone of every network security infrastructure. Deciding which product to use to protect your networks and devices should be approached with care. Both pfSe…

Introduction The sudo and su commands belong to the group of commands every Linux user comes across. Because they are similar in syntax and have overlapping functions, many new users are unsure when …

Introduction Vim and its older counterpart Vi are widely used text editors. They are both open-source (free) and available on most Linux and macOS distributions. Searching in Vim/Vi for words or patt…

Introduction Redis is an exceptionally fast remote in-memory database solution. The key-value data model enables Redis to handle large datasets while maintaining high availability and read-write spee…

Introduction The LAMP stack is a set of open-source software used for web application development. It consists of a Linux operating system, an Apache HTTP server, the MySQL database management system…

Introduction Kubernetes allows you to automate software deployment, manage containerized applications, and scale your clusters with ease. A wide array of Kubernetes objects, including DaemonSets, pro…