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..

The “Argument list too long” error is a common problem faced by Linux users when working with large numbers of files. This error occurs when a command is passed too many arguments, exceeding the limit set by the operating system. In this article, we will discuss some of the common causes of this error, and explore ways to handle them. Common Causes of the “Argument list too long” Error Attempting to delete, move or copy too many files at once: One of the most common causes of the “Argument list too long” error is attempting to delete, move, or copy…

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The “find” command in Linux is a powerful tool for searching for files based on various criteria. When used in combination with the “xargs” command, the “find” command can be even more efficient, allowing you to parallelize file operations and process many files at once. In this article, we’ll discuss how to maximize efficiency by using “find” with “xargs” to parallelize file operations. What is “xargs”? “xargs” is a command-line utility that reads items from standard input and executes a command for each item. It’s useful for processing large numbers of items, such as files, in parallel. The “xargs” command…

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The “find” command in Linux is a powerful tool that can be used to search for files based on various criteria, such as name, type, size, and timestamp. One common use case for the “find” command is to delete files that are older than a certain number of days. This can be useful for cleaning up old backups, log files, or other types of files that are no longer needed. In this article, we will discuss how to use the “find” command to delete files older than X days in Linux. Step 1: Navigate to the directory Before using the…

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Apache Multi-Processing Modules (MPMs) are an essential component of the Apache HTTP server, as they control the process management of the server and determine how it handles multiple requests. There are several different types of Apache MPMs available, including Prefork and Worker. In this article, we will compare the Apache MPM Worker and Prefork modules, examining their key differences and the situations in which each is best suited. Prefork MPM The Apache MPM Prefork is the simplest and most widely used Apache MPM. It creates multiple child processes, each of which handles a single request at a time. This MPM…

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The Apache HTTP Server is one of the world’s most widely used web servers and can be configured in different ways to meet the needs of various websites. The Apache Multi-Processing Module (MPM) is the module that manages the process of the Apache server. Two of the most popular MPMs are the Prefork and Worker MPMs. In this article, we will show you how to change the Apache Prefork MPM to the Worker MPM on CentOS systems. Before You Begin Before making any changes to your Apache configuration, it is recommended to back up your current Apache configuration files. You…

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Docker is an open-source platform that simplifies the process of building, deploying, and managing applications by using containers. Containers allow developers to package applications with all their dependencies and configurations, making it easier to deploy and run applications consistently across various environments. This article aims to introduce Docker’s basics, explore the concept of containers, and understand the underlying architecture that makes this technology so powerful. What is Docker? Docker is a platform that automates the deployment and management of applications using containerization. It enables developers to streamline application development, testing, and deployment by allowing them to work in isolated environments…

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Finding files modified between two dates in Linux can be a challenge, but with the find command, this task can be accomplished with ease. The find command is a powerful tool that allows you to search for files in a directory and its subdirectories based on various criteria, including modification time. In this article, we’ll go over how you can use the find command to find files modified between two dates in Linux. Syntax You can use Linux find command to find all files modified between two dates recursively. Here’s the basic syntax for using the find command to search…

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Apache is a popular open-source HTTP server that is widely used to host websites and applications on the Internet. The Apache HTTP server is highly customizable and configurable, and one of the key areas where administrators can make changes is with the Apache Multi-Processing Modules (MPMs). MPMs are the modules that control how Apache handles multiple requests, and they play a crucial role in determining the performance, scalability, and stability of an Apache server. In this article, we will provide a comprehensive introduction to Apache MPMs, including what they are, how they work, and the different types of MPMs available.…

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In Java programming, it is often necessary to introduce a delay or pause in the execution of a program. This can be achieved through the use of the Thread.sleep() method. In this article, we will discuss what Thread.sleep() is, why it is used, and how to use it in your Java programs for controlled delays. What is Thread.sleep() in Java? Thread.sleep() is a static method in the java.lang.Thread class. It is used to temporarily halt the execution of the current thread for a specified amount of time. This is useful in cases where you need to introduce a delay in…

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Keeping your system’s time accurate is essential, especially if you’re running servers, scheduling tasks, or working with networks. One of the most common ways to ensure your Ubuntu system is synchronized with the correct time is by using an NTP (Network Time Protocol) server. This guide will walk you through the steps to synchronize time with an NTP server on Ubuntu in simple, easy-to-follow instructions. What is NTP? NTP (Network Time Protocol) is a protocol that helps synchronize the clock of your computer with a remote server that provides the correct time. This ensures that your system’s clock is always…

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