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..

Setting filemode to false in Git is a configuration change that tells Git to ignore file mode (permissions) changes. On many systems, especially those using NTFS or FAT file systems (like Windows), file permissions are not as finely grained as on UNIX or Linux systems. In such cases, ignoring file mode changes can prevent unnecessary changes from being flagged in your Git workflow. To set filemode to false, you need to modify the Git configuration for your repository. Here’s how to do it: Open the Terminal or Command Line Interface. Navigate to Your Git Repository: Use the following to navigate…

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Python is a powerful and versatile programming language used for various purposes, including web development, data analysis, and scripting. While Ubuntu 18.04 comes with Python pre-installed, it might not include the latest Python version. If you need Python 3.12 for your projects and prefer to compile it from source, this step-by-step guide will walk you through the process. Prerequisites Before you start, ensure you have the following prerequisites: An Ubuntu 18.04 system. Access to a terminal with sudo privileges. A reliable internet connection. Step 1: Update and Upgrade Begin by updating the package list and upgrading your system’s installed packages…

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To run a command when a new file is created in a folder on a Linux system, you can use a combination of tools and scripting. One common approach is to use inotify-tools, a utility that allows you to monitor file system events, in conjunction with a shell script. Here’s a basic outline of how you can set this up: Step 1: Install inotify-tools First, you need to install inotify-tools. You can usually install it using your package manager. For example, on Ubuntu or Debian-based systems, you can install it by running: sudo apt update sudo apt install inotify-tools Step…

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Encountering an “Apache shutdown unexpectedly” error can be frustrating, especially when you’re working on crucial web development tasks. This error is common in environments like XAMPP and can arise due to several reasons. Here’s a comprehensive guide to help you resolve this issue. Understanding the Error This error usually occurs when Apache, a popular web server software, fails to start due to conflicts or configuration issues. The error message often appears in development tools like XAMPP control panel. Step 1: Check for Port Conflicts Identify Port Usage: Apache typically runs on port 80 (HTTP) and 443 (HTTPS). Use tools like…

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Ensuring the security of a website is crucial in today’s digital age. One effective way to enhance web security is by implementing the ‘Upgrade-Insecure-Requests’ directive in Apache. This guide will walk you through the process step by step, making it accessible even for beginners. What is ‘Upgrade-Insecure-Requests’? ‘Upgrade-Insecure-Requests’ is a directive that can be set in your website’s HTTP header via the Apache server configuration. It instructs browsers to upgrade all insecure HTTP requests to secure HTTPS. This is particularly useful for protecting your site and its users from man-in-the-middle attacks. Prerequisites Basic understanding of Apache server and its configuration…

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Welcome to our comprehensive guide on installing PIP, the Python Package Installer, on macOS. PIP is an essential tool for any Python developer as it simplifies the process of installing and managing Python packages. This tutorial is tailor-made for macOS users and assumes a basic understanding of using the Terminal. Prerequisites Before proceeding with the installation of PIP, it’s crucial to ensure that Python is already installed on your system. PIP is included by default with Python versions 3.4 and later. You can quickly check your Python version by opening the Terminal and typing `python –version` or `python3 –version`. If…

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MongoDB, a leading NoSQL database, is renowned for its flexibility and performance in handling diverse data types, including dates. In this guide, we’ll explore how to effectively query objects stored in a MongoDB database between two specific dates – a common requirement for many applications dealing with time-sensitive data. Understanding Date Storage in MongoDB Before diving into queries, it’s crucial to understand how MongoDB stores date objects. MongoDB uses the BSON format, which includes a specific Date type. Dates in MongoDB are stored as 64-bit integers representing milliseconds since the Unix epoch (Jan 1, 1970). This precision allows for detailed…

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Ubuntu and other Debian based system logs every package operation, like installations, updates, and removals in the /var/log/apt directory. You should always check these logs to keep tracks about the packages on your system. This information can be accessed using several methods. This tutorial will help you with the methods of accessible package update history on your Debian systems. 1. The APT History Log The APT package management system keeps a log of all the activities in a history file. You can view this file using a text editor or by using the cat command: cat /var/log/apt/history.log This command will…

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In the world of text processing on Unix-like systems, grep is an indispensable tool. Short for “Global Regular Expression Print”, grep is used for searching within files for lines that match a given pattern. In this article, we’ll focus on a specific use case of grep: extracting contents that come after a matching pattern. What is grep? `grep` is a command-line utility that searches through text and prints out lines that match a specified pattern. It’s widely used for searching through large logs, coding, or any text files. Regular expressions (regex), which provide a powerful way to specify patterns, are…

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In web development, it’s important to be flexible and able to customize things. If you use Next.js, you might need to change the default port your app runs on. This could be to avoid clashes with other services or because your deployment environment requires it. Knowing how to change the port is useful. This tutorial will help you with step-by-step instructions to change the port in both development and production environments. With these steps, you can run your Next.js app on any port you need, making development and deployment easier. Prerequisites Basic knowledge of JavaScript and Node.js. Next.js application set…

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