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..

If you’re using PHP on your Ubuntu 22.04 system, you may need to install Composer at some point. Composer is a PHP dependency manager that can help you manage your project’s dependencies in an easy and efficient way. In this guide, we’ll show you how to install Composer on your Ubuntu system. Prerequisites Shell access to a running Ubuntu system. Install PHP 5.3 or higher version. Installing PHP Composer on Ubuntu The Composer’s official team provides a script to install PHP composer on Linux systems. You can download this script using the curl or wget command-line utility. Also, you can…

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What is DMARC? Domain-based Message Authentication, Reporting, and Conformance (DMARC) is a technical specification for email authentication that was developed jointly by the Internet Engineering Task Force (IETF) and DMARC.org. DMARC allows email senders to create DMARC records in DNS that tell receivers what to do if the email being sent doesn’t pass either SPF or DKIM authentication checks. In this blog post, we will show you how to create DMARC records for your domain using DMARC.org’s free DMARC reporting tool. How to Create DMARC Record for Your Domain A DMARC record is a type of TXT record that helps…

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Computer hardware refers to the physical parts or components of a computer, such as a monitor, mouse, keyboard, computer data storage, graphic cards, sound cards, motherboards, etc. Hardware devices are what you can physically touch. It’s important to know the components of your computer hardware and how they work together because they are what enable you to do all of the things you love on your computer, like playing games, browsing the internet, and watching videos. Without computer hardware, there would be no computer. So next time you’re using your computer, take a moment to think about all of the…

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Information technology (IT) is the process and practice of creating, managing and using information resources in order to solve problems or make decisions. In other words, it’s the study and use of technology to manage information. This can include everything from handling digital information on a computer to controlling physical processes like manufacturing. Information technology is one of the most important aspects of our lives today. It encompasses all the ways we gather, process, and use information. From smartphones to laptops, information technology is everywhere. IT refers to the use of computers and telecommunications equipment to store, process, and transmit…

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Selenium is a versatile tool that can be used for automating browser-based tests. It has a wide range of features that make it an ideal choice for automating tests. Selenium can be used to automate tests for web applications and web services. Selenium supports a number of programming languages, including Java, C#, Python, and Ruby. This makes it possible to write tests in the language that you are most comfortable with. In addition, Selenium has a large user community that provides support and help when needed. In this blog post, you will learn to set up a Selenium environment on…

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Selenium is a versatile tool, which is widely used for automating browser-based tests. It can be used to automate tests for web applications and web services. Selenium supports a number of programming languages, including Java, C#, Python, and Ruby. This makes it possible to write tests in the language that you are most comfortable with. In addition, Selenium has a large user community that provides support and help when needed. This tutorial will help you to configure the environment for Selenium with Python and Chrome on Fedora. We will discuss an example written in Python. Prerequisites Assuming you have access…

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What is Squid? Squid is a proxy server that can be used to improve network performance and security. It can be used to cache web pages and images, allowing your users to access these files more quickly. Squid can also be used to protect your network from malicious content. If you’re an experienced system administrator, you know that a proxy server can be a valuable tool for optimizing your network. In this blog post, we’ll show you how to install a proxy server on Ubuntu using the Squid proxy server. How to install Squid on Ubuntu and Debian To install…

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An application pool in IIS defines the common settings for the worker processes. That serves requests to one or more web applications assigned to that application pool. Application pool recycling is used to terminate the current worker process and start a new worker process. This process refreshes the worker process. That helps recover applications from unstable states, which can cause application crashes. In this tutorial, you will learn: How to Recycle the application pool in IIS? How to Schedule auto recycle application pool in IIS? 1. How to Recyle Application Pool in IIS Follow the below steps to recycle the…

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Sometimes you may notice a strange caching behavior by the applications running in IIS. Today I found that my ASP.NET application showed a blank page. It is hosted on Windows Server 2019 in Azure Platform. I tried multiple times to resolve the issue but did not get success. After searching about the issue, I found a suggestion in Google search to remove all ASP.NET temporary files. Once I removed all the temporary files, the application start working again. Remove ASP.NET Temp Files in Windows To clear the temporary files do the following on both the Web Server: Log in to…

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SSH

SFTP is a protocol that allows for the secure transfer of files over a network. It is often used by businesses and individuals to transfer sensitive data. SFTP is similar to FTP but uses a different protocol for communication. SFTP is more secure than FTP and is often used in conjunction with SSH (Secure Shell) to provide an even higher level of security. In this tutorial, we will help you to set up an SFTP server and create an SFTP-only user on Ubuntu 22.04 systems. That account can connect over SFTP but is not able to connect over SSH. Also,…

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