Author: Rahul

I, Rahul Kumar am the founder and chief editor of TecAdmin.net. I am a Red Hat Certified Engineer (RHCE) and working as an IT professional since 2009..

Most operating systems provide commands or options to setup network interface using the command line. On Linux systems, we can directly edit network configuration files and make changes as per our requirements. This tutorial will help you to How to Setup Network Interface on Ubuntu, Debian, and LinuxMint systems. 1. Setup System Hostname You can use ‘hostname’ command to check current set hostname or to set new hostname of system. Type hostname on command prompt and press enter to check current hostname of system. hostname Type new hostname with hostname command to set it. This will not persist after system…

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JavaScript is one of the core programming language used on the websites. JavaScript enables interactive web pages and is an essential part of web applications. Most of the modern websites relies on JavaScript to handle client side application behavior. All the web browsers have a dedicated JavaScript engine to execute it. In this tutorial you will learn, how to call a JavaScript function on various page events like: On click , on form submission, or other various HTML controls. Create a JavaScript Function First of all, create a JavaScript function to use further in this tutorial. Add this JavaScript code…

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MySQL is an open-source relational database management system. This tutorial will help you to install MySQL server on your Ubuntu and Debian systems. This version has various security improvements than the previous versions. Step 1 – Configure Apt Repository Download the MySQL apt configuration Debian package officially provided by the MySQL team and install it on your system. For Ubuntu 16.04 and later version’s MySQL 5.7 is available under default apt repositories, so you don’t need to enable additional repository that. wget http://repo.mysql.com/mysql-apt-config_0.8.9-1_all.deb sudo dpkg -i mysql-apt-config_0.8.9-1_all.deb This will prompt you to select MySQL version to be install. So that…

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In the dynamic landscape of web development, staying current with the latest versions of Node.js is crucial for performance, security, and compatibility. Node Version Manager (NVM) is an essential tool for simplifying this process. This article provides a comprehensive guide on using NVM to upgrade Node.js, ensuring a smooth and efficient workflow for developers. How to Install Multiple Node.js Versions via NVM Understanding NVM Node Version Manager (NVM) is a command-line utility that enables you to manage multiple Node.js versions. It’s especially useful in environments where different projects require different Node.js versions, allowing you to switch between them effortlessly. Why…

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OpenSSH is a set of tools that lets you have secure, encrypted communication over a network using SSH. It includes features for secure remote login, file transfer, and tunneling of applications. OpenSSH is commonly used on Linux systems for secure remote access and file transfers. It is highly reliable and trusted by many users around the world for its strong security measures. In this guide, we will show you how to install or update the OpenSSH server on Ubuntu, Linux Mint, and other Debian-based systems. This will allow you to manage your servers remotely with confidence and ensure your data…

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As internet security becomes increasingly important, implementing SSL (Secure Sockets Layer) or HTTPS (Hyper Text Transfer Protocol Secure) on your website is becoming essential. These protocols help secure communication between the client (web browser) and the server (your website) by encrypting data transmitted between the two. In this beginner’s guide, we will cover the steps to implement SSL/HTTPS using .htaccess on an Apache web server. Step 1: Obtain an SSL Certificate The first step in implementing SSL/HTTPS is to obtain an SSL certificate. You can obtain a certificate from a trusted certificate authority (CA) such as Let’s Encrypt, which offers…

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Subversion (SVN) is a widely used version control system that allows developers to track changes to their code and collaborate on projects. An essential aspect of managing an SVN repository is backing up the repository data to prevent data loss and ensure business continuity. This article will guide you through the process of backing up and restoring an SVN repository in Linux using different methods. You can also set up your own SVN server on Debian based systems and Redhat based systems. Backing up the SVN Repository Using ‘svnadmin dump’ The svnadmin dump command is the standard method for creating…

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Question – How do I compare two strings in the Java programming language? Java provides two options for string compare. First is == operator and second is .equals() function for Java string compare. This Java tutorial will help you to understand string comparison under Java and difference between == and .equals() for string comparison in Java. Operator == checks for the object reference and matches true if both string belongs to same object. Function .equals() checks for the value of string, it doesn’t matter to which object they belongs. Compare two Simple Strings If both strings are simple strings. Java…

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DNS

The Domain Name System (DNS) is a hierarchical distributed naming system for computers connected over network. It resolves ip address correspondence to a domain name. A forward-only DNS server does not keep the domain information. If any query comes to this server, it forwards to the configured DNS server. A details information about DNS is available. This article will help you to configure forward only Domain Name System (DNS) using Bind9 on Ubuntu, Debian, and LinuxMint systems. Install DNS Packages Bind9 is the most popular DNS server used worldwide. It is available under default apt-get repositories. So use the following…

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DNS

A DNS server is a computer that acts as a translator between the IP address and the domain name. It is responsible for translating the domain name into its corresponding IP address. By setting up a DNS server on Ubuntu, you will be able to manage your DNS records and improve the performance of your website. Are you looking for an easy way to set up a DNS server on Ubuntu? Well, you have come to the right place! In this blog article, I will provide you with a comprehensive step-by-step guide on how to quickly and easily set up…

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