Found 1436 Articles for Linux

In world of IT, efficiency is key. Whether it's managing a data center, deploying a new software update, or configuring new hardware, streamlining processes can make all difference. One of most important areas where this is true is in installation and configuration of operating systems. And when it comes to deploying multiple instances of Red Hat Enterprise Linux (RHEL), there's no better solution than automated installations using PXE server and Kickstart files. What is PXE Server? PXE (Preboot Execution Environment) is a network protocol that allows a computer to boot from a server on network. Essentially, it means that you ... Read More

Introduction Apache Spark is a widely used distributed computing framework for big data processing. It provides a flexible and scalable solution for processing large amounts of data in a timely manner. However, deploying and managing a Spark cluster can be a challenging task, especially for those who are new to field of big data. In recent years, Bare Metal Cloud (BMC) providers have emerged as a promising solution for running distributed systems. BMCs provide benefits of cloud computing, such as flexible resource allocation, while also providing performance benefits of dedicated hardware. In this article, we will discuss how to automate ... Read More

Introduction Red Hat Enterprise Linux 7 (RHEL 7) is a popular operating system used in many enterprise environments. As a system administrator, automating installation process of RHEL 7 can be very beneficial. Automating installation process saves time and reduces risk of human error. Kickstart is a tool that can be used to automate installation process of RHEL 7. In this article, we will look at how to use Kickstart to automate RHEL 7 installations. What is Kickstart? Kickstart is a tool used to automate installation process of RHEL 7. With Kickstart, you can create a script that contains all configuration ... Read More

As a Linux user, you probably find yourself navigating through your file system on a regular basis. Whether you're moving between directories to run commands or searching for specific files, you may have found that using "cd" command can become cumbersome and time-consuming, especially if you have to navigate through multiple directories. Fortunately, there's a solution: Autojump. What is Autojump? Autojump is a tool that allows you to quickly and easily navigate through your file system by learning your most frequently used directories. It's an alternative to standard "cd" command, and it's especially useful for users who work with a ... Read More

Introduction When using a Linux shell, it's essential to ensure that user is logged out when they are not actively using system to ensure security and efficiency. This can be achieved by setting an automatic logout timer using TMOUT shell variable. In this article, we will explore how to set up auto logout in Linux shell using TMOUT shell variable, its benefits, and how to modify settings. What is TMOUT Shell Variable? TMOUT is an environment variable in Linux shell that defines number of seconds a shell session can be idle before it is automatically logged out. When this variable ... Read More

Atom is an open-source text and source code editor that was first released in 2014. It is created by GitHub and built on Electron framework, which makes it easily extensible and customizable. Atom is designed to be a hack able editor, which means that it can be modified and configured to suit individual needs. In this article, we will explore Atom's features and capabilities, as well as how to use it for text and source code editing. What is Atom? Atom is a text and source code editor that was developed by GitHub, popular web-based code repository. It's designed to ... Read More

RAID (Redundant Array of Independent Disks) is a technology that helps in storing and protecting data across multiple hard drives. It is a powerful tool for ensuring data availability and system reliability, and is commonly used in enterprise-level applications. RAID technology offers different levels, each with its own pros and cons, and these levels are implemented by assembling partitions as RAID devices. In this article, we will explore different RAID levels and how partitions are assembled as RAID devices. RAID Levels There are several RAID levels, each with its own advantages and disadvantages. most common RAID levels are − ... Read More

Creating a Q&A forum can be a great way to build a community and connect people who share common interests. With popularity of platforms like Stack Overflow, many developers and enthusiasts are looking to create their own Q&A forums. In this article, we will explore how to create a Q&A forum like Stack Overflow using Askbot. What is Askbot? Askbot is an open-source Q&A forum software that is designed to be simple, fast, and user-friendly. It is written in Python and built on top of Django web framework. Askbot offers a similar user experience to Stack Overflow, with features like ... Read More

As a system administrator, it is crucial to keep an eye on network activity in order to ensure security and detect any anomalies. In Linux, one useful tool for monitoring Ethernet activity is Arpwatch. In this article, we will explore what Arpwatch is, how it works, and how to use it effectively. What is Arpwatch? Arpwatch is a tool that monitors Ethernet activity on a network. It is designed to keep track of Ethernet/IP address pairings (ARP activity) and alert system administrator when any changes occur. ARP (Address Resolution Protocol) is a protocol used to map an IP address to ... Read More

Log files are a vital component of any computer system, they contain a detailed record of activities and events that occur on a system. These files can help you understand what happened in past, but in certain scenarios, you might want to monitor them in real-time to stay ahead of issues and troubleshoot problems before they escalate. In this article, we'll explore 4 ways to watch or monitor log files in real-time. Tail Command The tail command is a popular utility used to display last few lines of a file. It's particularly useful when you want to monitor a log ... Read More