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rhel 7

Configure Network Interface in CentOS 7

How to Configure Network Static IP Address on RHEL/CentOS 8/7

11 Comments

The scope of this tutorial is to explain how we can edit and make changes to Network Configurations on RHEL/CentOS 8/7 from the command line only, and, more specifically how we can set up

Setup OpenVPN Server and Client in CentOS 7

How to Install and Configure OpenVPN Server in CentOS 8/7

27 Comments

A Virtual Private Network is a technology solution used to provide privacy and security for inter-network connections. The most well-known case consists of people connecting to a remote server with traffic going through a

Setup Apache HTTPS Using SSL/TLS

RHCE Series: Implementing HTTPS through TLS using Network Security Service (NSS) for Apache – Part 8

11 Comments

If you are a system administrator who is in charge of maintaining and securing a web server, you can’t afford to not devote your very best efforts to ensure that data served by or

Things to do After CentOS RHEL 7 Installation.jpg

30 Things to Do After Minimal RHEL/CentOS 7 Installation

76 Comments

CentOS is a Industry Standard Linux Distribution which is a derivative of RedHat Enterprise Linux. You may start using the OS as soon as you install it, but to make the most out of

Reset Forgotten root Password in CentOS 7 and RHEL 7

Single User Mode: Resetting/Recovering Forgotten Root User Account Password in RHEL/CentOS 7

26 Comments

Have you ever encountered a situation when you missed your user account password on a Linux System? And the situation can be worse if you forgot the root password. You cannot perform any system

KVM Management in Linux

How to Manage KVM Virtual Environment using Commandline Tools in Linux

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In this 4th part of our KVM series, we are discussing KVM environment management using CLI. We use ‘virt-install’ CL tool to create and configure virtual machines, virsh CL tool to create and configure

Create KVM Stroage Volumes and Pools

How to Manage KVM Storage Volumes and Pools for Virtual Machines – Part 3

4 Comments

In this part 3 of our tutorial, we are discussing how to create and manage KVM Storage volumes and Pools using virt-manager GUI tool. In general, we use storage devices with different file systems

Network Install of Virtual Machines in KVM

How to Deploy Multiple Virtual Machines using Network Install (HTTP, FTP and NFS) under KVM Environment – Part 2

2 Comments

This is the Part 2 of KVM series, here we will discuss how to deploy Linux virtual machines using network installation under KVM environment. We will discuss three types of network installation (FTP, NFS

Install and Configure KVM in CentOS

How to Create Virtual Machines in Linux Using KVM (Kernel-based Virtual Machine) – Part 1

11 Comments

This tutorial discusses KVM introduction, deployment and how to use it to create virtual machines under RedHat based-distributions such as RHEL/CentOS7 and Fedora 21. What is KVM? KVM or (Kernel-based Virtual Machine) is a

Setup Cahing DNS Server in CentOS 7

How to Install and Configure ‘Cache Only DNS Server’ with ‘Unbound’ in RHEL/CentOS 7

7 Comments

Caching name servers using ‘Unbound‘ ( is a validating, recursive, and caching DNS server software ), back in RHEL/CentOS 6.x (where x is version number), we used bind software to configure DNS servers. Here

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How to Install Zabbix Agent and Add Windows Host to Zabbix Monitoring – Part 4

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