Tagged: RHEL

scp & rsync commands

Files transfer using scp & rsync commands

Hello Linux-fanatics, in this tutorial we will discuss how to transfer files among system using scp & rsync with some examples. (also read tutorial on “Cloning disks using dd & cat commands“). But firstly let’s...

Network bonding

Networking Bonding in RHEL/CentOS 7: Combining multiple NICs into one

When hosting a successful & busy websites or operating a critical server, high availability & redundancy are major factors to consider. To achieve high availability & redundancy, backup of the server & server clusters...

cloning disks

Cloning Disks using dd & cat commands for Linux systems

It always wise for a System Administrator to be prepared for the worst situation & having a backup/clones of servers, when such a day arrives will certainly make your job & life easy. Though...

router

Turning a CentOS/RHEL 6 or 7 machine into a router

In this tutorial we are going to learn to convert RHEL/CentOS 6 & 7 machines into a router by using NATting. Router as we know is layer 3 networking device that is used to...

bash tips tricks

Important BASH tips tricks for Beginners

Hello Linux-Fanatics, this post is dedicated to those users who are just getting started with their Linux Journey. I am sharing some Bash tips tricks which will make you more familiar with BASH &...

date & time

Playing with Date & Time in RHEL/CentOS

In this tutorial, we are going to discuss how we can view or modify date & time values in our RHEL/CentOS 7 servers. We are going to discuss 3 commands which we can use...

changing default runlevel

Changing Default Runlevel in Centos/RHEL 6 & 7

Hello Linux-Fanatics, in this post we will be process for changing default runlevel in Centos\RHEL 6 & 7 . But before we do that, we must discuss following… What is a runlevel ? Runlevel...

secure grub

How to secure Grub in Centos/RHEL 5/6/7 & 7.2

Hello Linux-fanatics, in this tutorial we will learn to secure Grub. GRUB or Grand Unified Bootloader, is the default boot-loader for most of the Linux distributions. It provides a user the choice to boot one of...

change hostname

5 ways to add or change hostname in RHEL/CentOS 7

Hostname for a system is like an identity for that system, it not only makes system management easy but we can also use hostname to access a system over LAN. In this tutorial, we...

functions

13- BASH Scripting – Creating FUNCTIONS in script

In our last tutorial, we discussed about advanced uses of I/O redirection & we will now learn to create functions for our scripts. Learning how to create a function is an important skill required...

securing apache

12 Important things to do for securing APACHE Web Server

Hello Linux-fanatics, previously we have discussed how we can install & configure apache web server & then secure it using a SSL certificate. Apache is used for web hosting for millions of websites (I...

LVM

Beginner’s Guide to LVM (Logical Volume Management)

In this tutorial, we will discuss about Logical Volume Management. LVM or Logical Volume Management is a disk management tool that makes it easier to manage disk space. With the help of LVM, we can...

install jenkins

Install JENKINS on CentOS/RHEL 7

With the rise of Devops culture, IT industries have changed for good. Organizations have been adopting devops resources, tools for increasing the productivity. Automation tools are gaining more and more importance & one such...

Old network interface name

Getting old network interface name back in RHEL/CentoS 7

Ever since the release of RHEL version 7, i have been most annoyed by the way the network interfaces have been named in OS. Earlier, the names for interfaces would be eth0 or eth1...

phpMemcachedAdmin installation

phpMemcachedAdmin installation in Linux

In our earlier tutorial, we have learned to install Memcached on Centos/RHEL & Ubuntu operating systems. For this tutorial we will discuss phpMemcachedAdmin installation, it is graphical\web interface used for the administration of memcached...

master slave dns

Setting up MASTER SLAVE DNS setup with BIND

Hello, Linux-fanatics. Earlier we learned to create a DNS server for our environment using BIND with single or Master server setup. Now, in this tutorial we will discuss how we can create a master...