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The default Apache Solr runs on localhost only. It doesn’t allow users to access it over the network. In this tutorial, we will learn how to change configure the Apache server to listen on a LAN network or the public network. Prerequsities Assuming that you already have installed and running Apache Solr on your System. You also have administrative privileged account access to your system. Change Apache Solr Listening Host First of all, you need to find the Solr environment configuration file based on your operating system....

Together, the Request and Response Headers help to ensure that data is sent securely and accurately between the browser and the server. Request and Response Headers are essential for web developers as they provide important information for debugging and troubleshooting. If you’re interested in learning more about Request and Response Headers, a good place to start is by reading up on the HTTP protocol. cURL is a command line utility used to transmit data over different-2 protocols....

df Command – Check Disk Space in Linux The df command is a Linux utility that displays information about disk space usage on the system. When used without any options, df shows the amount of available disk space on all mounted file systems. Here is an example of the df command: The output shows the file system name (e.g., /dev/sda1), the total size of the file system in 1K blocks, the amount of space used, the amount of available space, and the percentage of space used....

Any application added under startup application will automatically launch on user login. This is helpful and can be used with frequently used application to launch automatically. For example, a web browser or terminal window. 1. Launch GNOME Tweaks Search for the GNOME Tweaks under applications in search and Launch. You might not have installed the Tweaks tool on your system then it will show you an option to install. You can easily install it with GNOME installer options....

Set Up Auto-Login for Windows 7 Here are the steps to enable auto login for the Windows 7. Step 1 – Open run window (WINDOW + R) and type netplwiz and hit the Enter key. This will open the user accounts window. Step 2 – You will see the list of account. Select the account you want to enable auto-login and then uncheck the box before “Users must enter a username and password to use this computer” and click OK....

There are three options available to set with X-Frame-Options: ‘SAMEORIGIN’ – With this setting, you can embed pages on same origin. For example, add iframe of a page to site itself. ‘ALLOW-FROM uri – Use this setting to allow specific origin (website/domain) to embed pages of your site in iframe. ‘DENY – This will not allow any website to embed your site pages in an iframe. Setup X-Frame-Options with Apache Configuration Edit Apache configuration file based on your operating system....

This tutorial will help you to create a new empty branch in the Git repository. Git Create Empty Branch We can use –orphan command line option to create a new branch with no parents. The above command will create a new branch with no parents. Now, you can delete files from the working directory, so they don’t commit to a new branch. Now, you can add new files to this new branch, commit and push them up to the remote git repository....

In this article you will learn to find accounts in a MySQL server and remote unnecessary user accounts. View Current Users Connect to the existing MySQL server using administrative privileged account. Next, list all the available user account in MySQL server. Default database named “mysql” contains system related details including user account under “user” table. List out the account with hostname to delete or all unused accounts no longer required....

You can achieve this by making little changes to the system registry keys. Once the changes are done, multiple users can connect to your system using the RDP client. You can also limit the number of users who can connect at a time. In this tutorial, we will discuss enabling and disabling multiple remote desktop sessions in Windows servers in 2012, 2012 R2, 2016, 2019 and 2022. Enable Multiple RDP Sessions Follow the below steps to enable multiple remote desktop sessions on a Windows system....

Basically there are two types of limits: A hard limit is the maximum allowed limit to a user or session, which is set by the superuser/root. A soft limit is the current effective value for the user or session. Which can increase by the user up to the hard limit. Check for Current Limits The ulimit command provides control over resources available to each user via a shell. You can use below command to to get the current settings....

Step 1 – Install Node.js First of all, you need to install node.js on your system. Use the following set of commands to configure node.js yum repository in your CentOS system and install it. Make sure you have successfully installed node.js and NPM on your system Step 2 – Install Angular/CLI After installation of node.js and npm on your system, use the following commands to install the Angular CLI tool on your system....

This tutorial will help you to install Java 17 on Debian 11/10/9 systems using PPA and apt-get command. Ubuntu and Linux Mint users use the below link to install Java on their system. Read this => Install Java 8 LTS on Debian Read this => Install latest Java on Ubuntu & LinuxMint Step 1 – Add PPA to System The webupd8 team has built a Java installer package for Debian systems....

This tutorial will help you to enable Apache mod_cloudflare module on a Ubuntu system. Which will log the original visitor IP address to logs. Install mod_cloudflare for Apache Cloudflare provides an official module for the Apache server to capture real IP addresses. You need to enable the PPA of the Cloudflare module to your Ubuntu system. Conclusion In this tutorial, you have learned to configure the Cloudflare module to Apache on the Ubuntu system....

Useful tutorial: How to Install Visual Studio Code on Debian Prerequisites SSH or Shell access to Debian system with sudo privileged account. Install Mono on Debian First of all, install some required packages on your Debian system and import GPG key. Now, add Apt repository on your system provide by the official website. Use one of the following commands to add Mono repository to your system based on Ubuntu version....

Useful tutorial: How to Install Visual Studio Code on Ubuntu Prerequisites Login to the Ubuntu system with sudo privileged account. Install Mono on Ubuntu First of all, install some required packages and import GPG key to your system. You need to add Apt repository provide by the official project team. Use one of the following commands to add Mono repository to your system based on Ubuntu version. Once the repository is added....

Step 1 – Prerequisites Login to your Debian 9 system using shell access. For remote systems connect with SSH. Windows users can use Putty or other alternatives applications for SSH connection. Run below commands to upgrade the current packages to the latest version. Step 2 – Configure MySQL PPA MySQL team provides official MySQL PPA for Debian Linux. You can download and install the package on your Debian system, which will add PPA file to your system....

This tutorial will help you to install Notepad++ on your Fedora system using snap packages. Prerequisites Fedora system with Desktop access A sudo privileged account access Step 1 – Install Snapd Snapd is a package manager application popular among Linux users. A snap package is a self-contained package including the dependencies. Run the below command to install Snapd daemon on your Fedora system. Next, create a symbolic link to complete the installation on your system....

In this article, we will cover two different methods for installing OpenCV in Python: using “PIP” (the Python Package Manager) and using “Anaconda” (a free and open-source distribution of Python and R for data science and machine learning). Method 1: Installing OpenCV using PIP PIP is the default package manager for Python. It allows you to install and manage third-party Python packages (such as OpenCV) from the command line. To install OpenCV using PIP, follow these steps:...

This tutorial will help you to install VirtualBox on Debian 11 Bullseye Linux system. Before we start Login to the Debian 11 desktop system with a sudo privileges account. Update all the currently installed packages on your system. To do this simply run the following commands. Step 1 – Setup Apt Repository First of all, You need to add Oracle public keys to your system, which is used to sign the Debian packages....

This tutorial will help you to install Postman on Ubuntu 20.04 Focal Fossa Linux system. Prerequsities You must have sudo privileged account access to the Ubuntu 20.04 system. Login to your system and press CTRL + SHIFT + T. to open a terminal. Install Postman on Ubuntu 20.04 Postman snap package is available on the snapcraft. The latest Ubuntu systems are pre installed with snap command line utility. So simply execute the following command to install Postman on Ubuntu 20....