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Prerequsities SSH access to CentOS/RHEL 8 system Sudo privileges to user to install packages Step 1 – Install Apache on CentOS 8 First of all, Login to your CentOS 8 or RHEL 8 system via SSH. Then install Apache2 HTTP server packages using the following command. This will also install additional required packages on your system. Wait for the installation complete Step 2 – Manage Apache Service Apache service is managed with systemctl command line on CentOS/RHEL 8....

This tutorial will help you to install Apache Solr 9.0 on Ubuntu 22.04 Jammy Jellyfish systems. Step 1 – Install Java Apache Solr 9 required Java 11 or greater version to run. It is also tested with Java 17. Make sure that your system satisfied all requirements of Apache Solr. If in case, java is not installed on your system run the following command: After installation, check the active Java version:...

Step 1 – Installing Node.js First of all, you need to install node.js on your system. Use the following set of commands to add the node.js DNF repository on your Fedora system and install it. Then install the Nodejs package on your system. Step 2 – Install Gulp.js on Fedora After installation of Node.js and Npm on your system, use the following commands to install Gulp CLI globally on your system....

This article will help you to install Ionic framework command line utility on your Ubuntu 20.04 LTS system. Prerequisites Login to your Ubuntu system using sudo privileged user. Then update the system packages to latest. Step 1 – Install Node First, use the following commands to install NPM and Node.js on your system. The below command will add PPA for node.js to your system. Step 2 – Install Cordova After installing Node....

You must have Mattermost server installed in your self-managed instance or signup for the Mattermost cloud. For this tutorial, I have created an account on Mattermost cloud free version. You can go with professional or enterprise edition as per your requirements. This tutorial describe you to how to install Mattermost desktop client on Ubuntu 18.04 LTS Linux system. Prerequisites You must have Desktop install on your Ubuntu system. Login as sudo privileged account on your Ubuntu 18....

It is available for all Operating Systems; in this article, you will learn how to install NodeJs on your Debian system (Linux OS) so that you can build amazing applications using NodeJs. Given below are three methods to install NodeJs on Debian 11, you can follow any of these you find easier for successful installation: Installing Node.js from Debian Repository Install NodeJs using PPA Installing NodeJs using NVM Method 1 – Installing Nodejs from Debian Repository At the time of writing this tutorial, the Node....

How to Install pgAdmin4 on Debian 9 Step 1 – Enable Apt Repository First, you need to import PostgreSQL packages signing key on your system. Use the below command to import the key. Now add PostgreSQL apt repository in your system as per your operating system. These are suggested on official PostgreSQL website using following command. Step 2 – Install PostgreSQL on Debian 9 At this stage, you have successfully added PostgreSQL official repository in your system....

1. Install Sendmail If you don’t have installed Sendmail using the following command to install Sendmail with other required packages using the apt package manager. 2. Configure Sendmail Server Now, execute the sendmailconfig command to complete the basic configuration. Select all options to ‘Y’ and press enter. Wait for the command finish. Your server is ready for sending emails. You can use the Linux command line or PHP script to send emails....

If you use Linux as your primary operating system or as a secondary OS on your computer, you might be interested in installing Skype on it. This article will help you learn how to install Skype on Debian. Read on to discover more. How to Install Skype on Debian First of all, download the Skype package for the Debian system from its official download page. You can also use the below command to download the latest available Debian package....

First of all, list all available version of the package. For example to find available version of firefox run the following command. The above command shows two version’s of firefox. Now, run the below command to install firefox version 59.0.2.

This article will help you for step by step setup of Subversion (svn) server on Debian 11, Debian 10 and Debian 9 Linux systems. Step 1 – Install Apache We are using Apache web server to host SVN server. You need to install the Apache web server to access the svn server using HTTP URLs. Skip this step if you already have Apache web server on your system. Step 2 – Install SVN Server Use the following command to install subversion packages and their dependencies....

Use the command line below to remove the directory named test_dir from the current directory. Then commit and push to apply changes in the local and remote repository. All done, The test_dir has been removed from the local as well as the remote git repository.

You may also intrested in our tutorial How to Setup HAProxy on Ubuntu & Linuxmint . I hope you get a better understanding of the setup with the above structure. Let’s move to the configuration IP failover setup between LB1 and LB2 servers. Step 1 – Install Required Packages First of all, Use the following command to install required packages to configure Keepalived on the server. Step 2 – Install Keepalived Keepalived packages are available under default apt repositories....

The Linux users uses shell to interact with operating systems. In which the Bash (Born Shell) is the most used shell and available default on most systems. Now a days Zsh (Z Shell) is also getting popularity between the users due to its features. In this tutorial you will learn how to run command as another user in Linux/Unix systems. Running Command As Another User with Su su (Switch User) command is used to run shell as another user....

Schedule Crontab at 30 Seconds Crontab doesn’t allow scheduling job duration in seconds. The minimum permitted duration is every minute only. But still, you can do some tricky configurations to run your script to run at every 30 seconds. For example, to run a shell script every 30 seconds use the following crontab configuration: In the above configuration, we have scheduled the script twice. The first cron runs every 1 minute and the second cron also starts at the same time but waits for 30 seconds before execution....

Understand the Difference Between Members Java provides 4 types of access modifiers with different scopes and visibility. Any member without any specifier is dealt with as “Default” or “package-private”. See the below graphical representation, which will help you better outstanding about the scope of all members in different cases. Hope this tutorial helped to under the difference between private, package-private (default), protected, and public members. Please put your valuable suggestions in the comment box....

To solve this error, you can create a custom error page or redirect user to website home page. This tutorial will help you to redirect user to home page if 404 error occurred on server. Setup 404 Redirect to Homepage Edit .htaccess file under the document root of your Website hosted via Apache server. Add below content to the end of file. For example, you website document root is /var/www/domain....

This tutorial will help you to clone a specific branch from the remote Git repository. Clone Specific Git Repository You can clone any remote repository with git clone command. The default clones the master (main) branch from remote. You can also specify the branch name with -b option to clone a specific branch. The above command clones the specific branch but fetches the metadata of other branches. You can view all branches details with command git branch -a....

Step 1 – Create User First of all, create a user account to use for sftp access. Below command will create user named sftpuser with no shell access. Step 2 – Create Directory for SFTP Now, create the directory structure to be accessible by sftp user. Change the ownership of the files directory to sftp user. So that sftpuser can read and write on this directory. And set the owner and group owner of the /var/sftp to root....

This tutorial will help you to disable local DNS caching on Ubuntu and LinuxMint systems. You can also clear current DNS cache instead of disable it completely. Disable DNS Cache Log in to your system with the user has sudo privileges and Edit NetworkManager configuration file in your favorite text editor. Now comment the following entry by added # symbol to start of line like below. Save the configuration file....