[ad_1] nslookup is a command-line administrative tool for testing and troubleshooting DNS servers (Domain Name Server). It is used to query specific DNS resource records (RR) as well. Most operating systems come with a built-in nslookup feature. This article demonstrates the widely used nslookup command in detail. Nslookup can be run in two modes: Interactive … Read more
[ad_1] In our previous article, we have explained nslookup command examples and usage, which is a networking command-line tool used for querying and getting information of DNS (Domain Name System). Here, in this article, we come up with another command line tool called dig, which is much similar to the Linux nslookup tool. We will … Read more
[ad_1] This is our ongoing series of Linux commands and in this article, we are going to review lsof command with practical examples. lsof meaning ‘LiSt Open Files’ is used to find out which files are open by which process. As we all know Linux/Unix considers everything as a file (pipes, sockets, directories, devices, etc). … Read more
[ad_1] Computers are connected in a network to exchange information or resources with each other. Two or more computers are connected through network media called a computer network. There is a number of network devices or media are involved to form a computer network. Computer loaded with Linux Operating System can also be a part … Read more
[ad_1] This is our ongoing series of Linux Commands and Linux Performance Monitoring, in this article, you will learn about Vmstat and Iostat commands, which are available on all major Unix-like (Linux/Unix/FreeBSD/Solaris) Operating Systems. vmstat command (also known as virtual memory statistic tool) shows information about processes, memory, disk, and CPU activity in Linux, whereas … Read more
[ad_1] In this article, we are going to review and see how we can schedule and run tasks in the background automatically at regular intervals using the Crontab command. Dealing with a frequent job manually is a daunting task for system administrators and such tasks can be scheduled and run automatically in the background without … Read more
[ad_1] In this article, we are going to review the wget utility which retrieves files from World Wide Web (WWW) using widely used protocols like HTTP, HTTPS, FTP, and FTPS. Wget is a free command-line utility and network file downloader, which comes with many features that make file downloads easy, including: Download large files or … Read more
[ad_1] In this article we are going to review some of the useful and frequently used Linux or Unix commands for Linux System Administrators that are used in their daily life. This is not complete but it’s a compact list of commands to refer to when needed. Let us start one by one how we … Read more
[ad_1] This topic might seem a bit peculiar. I mean, why should you convert your home directory into a separate partition? Whenever you are installing Linux, the installer already selects the ‘guided‘ partitioning by default. When you go with this option, the installer places the home directory plus all the other system directories under the … Read more
[ad_1] The su command is a special Linux command that allows you to run a command as another user and group. It also allows you to switch to the root account (if run without any arguments) or another specified user account. All users by default are allowed to access the su command. But as a … Read more
[ad_1] For one reason or the other, you may wish to run a command repeatedly for several times in Linux. This guide will discuss some of the common and effective ways to achieve just that. Let’s consider the first method. Note that if you intend to run a command after command after every x seconds, … Read more
[ad_1] By default, every command that you execute on your terminal is stored by the shell (command interpreter) in a certain file called a history file or shell command history. In Bash (the most popular shell on Linux systems), by default, the number of commands persisted in the history is 1000, and some Linux distributions … Read more