PING (Packet INternet Groper) is a network administration utility used to check the connectivity status between a source and a destination computer/device over an IP network. It also helps you assess the time it takes to send and receive a response from the network. Basic Principles behind ping Command Whenever there is a requirement to […]
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When you use the sudo command for the first time, you see the message “With great power, comes great responsibility.” And rightly so. “Sudo” is short for Superuser Do. With this command, any user who has been granted permissions has access to root-like privileges without having to be a super user. Also read: Shell Scripting
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CouchDB is a free and open-source fault-tolerant database made and maintained by the Apache Software Foundation. It is a very good choice for a NoSQL type database, where you do not want a relational database. In this tutorial, we shall see how to configure and install the latest version of CouchDB from the Command-Line. Step
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The chmod (change mode) command in Linux is used to change the access mode of a file, based on the type of user accessing the file and the type of permission associated with accessing the file. File Permissions and User Groups For understanding what the types of permissions and the types of users are, let
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When you buy a new home appliance, it is accompanied by a user manual that explains the functions of the appliance. Similarly, when you download and install a new package for Linux, the user manual for the program is automatically installed in your system. Linux man command is what you can use to read through
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The hosts’ file is an extremely useful albeit small text file that stores host names with associated IP addresses. It is basically a mapping from hostnames to IP addresses. Any network protocol uses this mapping to convert hostnames to numeric IP addresses. The mapping is because the Network Layer does not work with the hostnames.
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The uname and whoami commands help you understand details like kernel version, name, hostname, etc of the Linux system you are using and what user is currently logged in. Simple yet useful, both the commands are very commonly used by Linux administrators and users alike who work with multiple Linux systems. Also read: How to
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In this tutorial, we’ll cover the killall command in Linux. We recently posted a tutorial on the kill command in Linux where we covered the usage and the functionality of the command. Today, we’ll go over how to use the killall command in Linux, and understand the difference between kill and killall commands. What is
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The mkdir command in Linux is used to make directories, hence the command is named mkdir. With traditional GUI systems, if you want multiple directories, you have to create one directory at a time. The mkdir is a very flexible and customizable command in this matter. Let’s look at the functionality. Also read: How to
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If you’re wondering what symbolic links are and how to create symbolic links in Ubuntu, you’ve arrived at the right tutorial. Even though this is a very simple concept, symbolic links are very useful when working with Linux. The reason why symbolic links are necessary is because of the fact that everything in Linux is
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