When you need to access networks located on a different network segment, you need to have a route set up so the PC knows how to get to the other network segment. This generally just points to your main gateway, but you may want to set up additional static routes, where you don’t want the […]
Continue Reading
SSH allows for both password based authentication, as well as public key authentication. Public key authentication is generally regarded as being more secure, as it isn’t as prone to brute force login attempts (if you disable password based authentication). The private key can also have a passphrase associated with it, which makes public key authentication […]
Continue Reading
An array is a data structure consist multiple elements based on key pair basis. Each array element is accessible via a key index number. This tutorial will help you to create an Array in bash script. Also, initialize an array, add an element, update element and delete an element in the bash script. Define An […]
Continue Reading
Debian is probably one of the most stable Linux distribution as a desktop or server. All Debian Stable releases are supported for 5 years. Debian tries to strike a balance between stability and features. Most software packages in Debian are a bit dated compared to upstream packages. For example, in the current Debian Stable version […]
Continue Reading
Redis is an in-memory data structure store, used as a database server, cache, and message broker. Redis is written in C programming language. It also provides PHP module for communication between PHP script with the Redis server. This tutorial will help you with the installation of the Redis server on a Debian 9 Stretch Linux […]
Continue Reading
Have you ever been into a situation where you need to search for a string, word or pattern inside a file? if yes, then the grep utility comes handy in such situation. grep is a command line utility for searching plain-text data for lines which matching a regular expression. If you will divide the word grep like g/re/p then the meaning of grep is (globally search a regular expression and print) which […]
Continue Reading
SSH (SSH client) is a program for remotely accessing a machine, it enables a user to execute commands on a remote host. It is one of the most recommended method for logging in to a remote host, since it is designed to provide secure encrypted communications between two untrusted hosts over an insecure network. SSH uses both a […]
Continue Reading
In this article, we will show how to run commands on multiple Linux servers at the same time. We will explain how to use some of the widely known tools designed to execute repetitive series of commands on multiple servers simultaneously. This guide is useful for system administrators who usually have to check the health […]
Continue Reading
Linux admins spend most of their time on working in a terminal; there are some who like to work on GUI instead of a terminal. By default, CentOS 7 installed as the minimal server, and user intervention is required to change the installation type. This guide will help you to install GUI on CentOS 7 on the top of […]
Continue Reading
Yellowdog Updater, Modified (yum) is an open source package-management utility in Redhat based operating system. Yum takes care of automatic installation of dependent packages during package installation, removal, and updates. Yum uses Redhat Package Manager (RPM) and can install software packages from yum repositories (collections of RPM packages), which can be accessed locally or over a network […]
Continue Reading