Author: Rahul

The internet works well because it can send data securely, thanks to things like Transport Layer Security (TLS). TLS is the newer version of Secure Sockets Layer (SSL) and it helps keep web traffic safe. This article will talk about TLS 1.3 and 1.2, which are better and faster than the older versions. One popular web server that uses these protocols is Apache. But, to make sure your Apache server only uses TLS 1.3 and 1.2, you need to set it up in a certain way. This guide will show you how to configure your Apache server to only allow…

The Ubuntu team has once again kept their promise and released a new long-term support version, Ubuntu 24.04 (Noble Numbat), which comes with many great features. After installing it, setting up the network interface is an important first step for users. Usually, the system automatically gets an IP address from DHCP, but sometimes you might need to set up a static IP address. A static IP address does not change even when the system restarts, which is very helpful for managing networks and running servers. This guide will show you how to set up a static IP address on Ubuntu…

Git tags are like bookmarks for specific points in your project’s history. Imagine you’re reading a book and you use a bookmark to mark a particular page you found interesting or important. Later, you can easily go back to that page without having to flip through the entire book. This quick tutorial will help you to clone specific tag in git repository. This can be helpful, when you want code from specific point or some of users preferred the tag based deployments. How to Clone Git Tags Here is the step by guide to clone a specific git tag on…

MySQL is one of the most popular open-source relational database management systems. It is still very common database among the developers. This is highly robust and scalable, like any software, you may also face the errors. One such error, especially in high-traffic systems, is “ERROR 1040 (08004): Too many connections”. Let’s explore this error in detail, understand its causes, and look at possible solutions. What is this Error? This is a common error occurs when all available MySQL connections limit reached and more requests are made. MySQL server has a configuration setting named max_connections that dictates how many simultaneous connections…

Nagios is a popular tool used for monitoring systems, networks, and infrastructure. It helps keep track of various services and hosts to ensure everything runs smoothly. One important task when using Nagios is verifying that the configuration files are set up correctly. This is where you can use the following command: /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg What Does This Command Do? This command is used to check the Nagios configuration file for any errors. Here’s a simple breakdown: /usr/local/nagios/bin/nagios: This is the path to the Nagios executable file. It’s the program that runs Nagios. -v: This flag stands for “verify.” It tells…

Dig stands for Domain Information Groper and is a tool used to look up information in Domain Name Systems through command lines. It’s really helpful for network administrators when they need to solve problems related to DNS. With Dig, they can quickly find out which servers are connected to a specific domain and check if the DNS records are set up correctly. This helps use managing and monitoring the network more efficient. The default Windows systems doesn’t provides dig command line tool, but still you can add it to your systems. This tutorial will help you to install dig command…

Imagine you and a friend are working together to build a website for a bakery. You want to keep the main version of the website running smoothly while you try out new features like adding a gallery of cakes or an online order form. This is where Git branches come in handy. They help you manage different versions of the website without affecting the live version that your customers see. The popular Git Flow model recommends naming branches like this: main develop feature release hotfix In this model, ‘main’ and ‘develop’ are the main branches. The other branches, ‘feature’, ‘release’,…

In real-life terms, Port forwarding is like telling the delivery driver where to go in a large apartment complex. Normally, the complex’s main door is locked to outsiders. But if someone from inside expects a delivery, they can tell the security guard to let the driver in and direct them to the specific apartment. Similarly, in computer networks, port forwarding lets someone from outside access a service inside a private network that they usually wouldn’t be able to reach. This is useful when you want to let people outside your network use a web server, play games on your game…

Welcome to Shell Scripting Challenge 002! In this challenge, we have created a simple Bash script with pre-increment, post-increment and a modulus operator. Please try to predict the output of the script. Shell scripting is not only to do practical tasks but also fun when you start working on it Below is the script for Challenge 002: #!/bin/bash x=12 ((x++)) ((++x)) ((x%3)) echo $((x++)) Take a moment to read the script and make your prediction. You can use the notepad to calculate the result. What will be printed to the console when this script is executed? Take into account the…

Hey, Linux fans! Guess what? The team working on Ubuntu 24.10 have given it a special name: “Oracular Oriole”. Sounds cool, right? Let’s talk about what this means and why it’s making waves in the tech world. Introducing “Oracular Oriole” Similar to the previous versions, Ubuntu 24.10 also given a codename, and this time it’s “Oracular Oriole”. The name itself is sounds like of a mystery, much like the vibrant oriole bird known for its elusive nature/ Here “Oracular” means wise and helpful, like a friend who gives good advice. “Oriole” is a type of bird known for being bright…