On Linux/Unix platforms, the 'ls' command is one of the most frequently used commands. This should be one of the first commands you train when you enter the shell/command prompt. This guide will teach you how to use the various options of 'ls' command. All the below examples of the 'ls' command are tested on […]

Linux's echo command is a fundamental and essential command in scripting and programming! This command displays or prints arguments at the terminal. The command is included in all distributions (operating systems) as either the shell or bash. Usually, developers or programmers use echo commands in both debugging and building products such as websites, applications, operating […]

By using the cron command, we can schedule and run many tasks automatically in Linux/Unix. You can execute them once or on a regular basis. Cron is widely used to schedule repetitive tasks at regular intervals (using commands listed in a file called 'crontab'), and the 'at' function is a way of scheduling a task […]

The 'cat' command is one of the most frequently used commands in Linux (short for "concatenate"). This is a standard Unix application that concatenates and displays files. There are three functions associated with text files (1. By using the cat command, we can see the contents of a file on screen. Cat concatenates FILE(s) or […]

LAMP stands for Linux, Apache, MySQL, and PHP. An acronym for a Linux/UNIX server powered by Apache, MySQL/MariaDB, and PHP as a server-side scripting language. Also known as LAMP stack. Lamp Stack has a strong foundation, which makes it ideal for construction and development of high-performance websites. Advantages of using Lamp stack in web development? […]

In this article, you will learn how to set up DNS (Domain Name System) on a Linux/Unix based system. DNS is mainly used to resolve hostnames, so it can translate IP addresses into fully qualified domain names (FQDNs), such as 172.217.166.110 into www.linuxteck.com. It is one of the basements of the internet. When you type […]

Using this article, you will learn how to setup / configure Caching-Only DNS with BIND on RHEL/CENTOS 7.6. As we know, DNS is used for translating names into IP addresses and IP addresses into names. DNS servers come in various types (Master, Slave, Caching, and Forwarding). The topic we are going to cover is Caching-Only […]