RHCE

Hey good people. Today in this short tutorial I’ll share with you tips on how to create local CentOS 6 and CentOS 7 mirrors. This is beneficial when you have a...

Extend root filesystem using LVM on Linux. This will cover both ext4 and xfs filesystem root partition extending.  It will start by creating a new partition and then partitioning it and...

Hey all, welcome to ssh cheatsheet for Linux SysAdmins. This contains ssh commands you need for your daily administration of Linux Infrastructure.  SSH which is also referred to as Secure Shell is a cryptographic...

This is a comprehensive virsh commands cheatsheet: Virsh is a management user interface for virsh guest domains. Virsh can be used to create, pause, restart, and shutdown domains. In addition, virsh...

Working with qemu-img in Linux: This is a brief qemu-img cheatsheet for working with qemu-img command on Linux and Unix systems supporting qemu. I made this qemu-img cheatsheet for my own...

Firewalld on RHEL7: I’m a person who is nuts about security. Seeing multiple layers of security being circumvented on a network is just against the reasons I’m security-centric all times. Some...

Welcome to Getting started with Xen Virtualization On CentOS 7.x. Xen is an open-source bare-metal hypervisor which allows you to run different operating systems in parallel on a single host machine. This...

This blog post is aimed at helping you get started with B-tree filesystem (BtrFS). Kernel-based filesystems in the Linux kernel tree are currently over 55 with each filesystem having its pros...

Hello all. This is my first tutorial on KVM Virtualization prepared as a reference and to help you automate boring GUI-based installation questions. We're using Kickstart on KVM to deploy VMs....

There are many choices for network configurations in the KVM host. In this post, I’ll guide you through two main choices to configure KVM networking. We’ll consider internal networking and external...