Sudo is the default utility on Unix-Linux systems, which is known as SuperUserDo. The Linux system forbids normal users from executing administrative commands. However, we can use this mechanism to allow regular users to run any application or command as a root user or to grant specific  commands to specific users. In order to run […]

YUM stands for Yellowdog Updater Modified, which is an RPM (RedHat Package Manager) based package management tool for Linux Systems. Yum was introduced in RHEL version 5.10 onward and its deprecated 'up2date' command. Yum, command helps all Users and System Administrators to search for information about packages and then install, update, and remove all rpm […]

SSH stands for Secure Socket Shell, one of the well-known service protocols used to execute an operation to the remote administration over the internet. It provides a very secure passage between the designated computers. Once the connection is established, SSH will then provide encrypted sessions for all public (unsecured) networks in a client-server architecture. It […]

In computing, a good Firewall system can prevent any unauthorized access to the network security systems. Businesses and organizations invest a good amount of money in their cybersecurity infrastructure, depending on how crucial their business is. In this article, we will see the fundamentals of a new firewall service introduced in CentOS 7 named FirewallD. […]

SSH is one of the main key services in Linux/Unix based systems. SSH represents Secure Socket Shell. SSH protocol is used to access the remote server/system with an encrypted method of login using the default TCP/IP port 22 or a custom based port number. This service is mainly used by System and Network Administrators to […]

This article will help you to understand the 'useradd' command in Linux/Unix based systems. As we all are aware that Linux is a multi-user and a multitasking operating system (OS). It has been built with a large number of commands from basic to advance. Here, we are going to see the 'useradd' command, it is […]

This article will help you learn how to setup/configure a High-Availability (HA) cluster on Linux/Unix based systems. Cluster is nothing but a group of computers (called nodes/members) to work together to execute a task. Basically there are four types of clusters available, which are Storage Cluster, High-availability Cluster, Load-balancing Cluster, and HIGH-Performance Computing Cluster. In […]

This article will help you learn how to setup/configure iSCSI on Linux/Unix based systems. iSCSI stands for (Internet Small Computer System Interface), which is an Industry standard protocol which is mainly used to share the storage device over the TCP/IP layer. Unlike Samba or NFS, which work at the file system level whereas iSCSI works […]

Magento is a robust and powerful platform for eCommerce websites. It is built with a PHP Framework. It comes with two editions - Magento-2 Commerce (EE), formerly known as Enterprise Edition) and Magento-2 Open Source (formerly known as Community Edition). Magento-2 is a fully customizable and user-friendly interface, which can set up and control a […]

This article will help you understand the use of df command in Linux and how to use df command with multiple options in Linux/Unix. The 'df' (Disk Free) command is in an inbuilt utility to find the available and disk usage space on Linux servers/storage. This command is mainly used by all the System Admins, […]

Linux/, a Unix based system that comes with an inbuilt utility 'ps' (processes status) to check the information on the running process. The process is nothing but a program in Linux/Unix to execute a specific task. The ps command in linux is used to monitor all the currently running activities along with USER, PID, %CPU, […]

The final version of the Red Hat Enterprise Linux 7 is released. Click here for more details

RHEL 8 can be managed from your Mobile Device using the Web Console. Click here for more details

This article explains how to use curl in Linux with 15 examples. The curl command is one of the most powerful and useful tools that are used by web developers as well as by PHP programmers and System Administrators. Most commonly, it is used to transfer data between remote and local systems. Through this command, […]