Tagged: system administrator

du & df commands

Use of du & df commands (with examples)

Last updated on March 12th, 2018 at 07:35 pmIn this article I will discuss du & df commands. Both du & df commands are important utilities of Linux system & shows disk usage of...

user & group management

User & Group management : Complete Beginner’s Guide

Last updated on March 12th, 2018 at 07:37 pmOne of the major work of a System Administrator is User & Group Management. We have to create new users & groups, delete old ones, providing...

wget command

Learn to use Wget command with 12 examples

Last updated on March 12th, 2018 at 07:39 pmEvery now & then we have to download files from internet, its easy id you are using GUI but CLI it can be a bit difficult....

offline yum

Creating an Offline YUM repository for LAN

Last updated on March 12th, 2018 at 07:39 pmIn our earlier tutorial, we discussed “How we can create our own yum repository with ISO image & by mirroring an online yum repository”. Creating your...

scp & rsync commands

Files transfer using scp & rsync commands

Last updated on March 12th, 2018 at 07:43 pmHello 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...

Network bonding

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

Last updated on March 12th, 2018 at 07:43 pmWhen hosting a successful & busy websites or operating a critical server, high availability & redundancy are major factors to consider. To achieve high availability &...

SELinux

Beginner’s guide to SELinux

Last updated on March 12th, 2018 at 07:44 pmHello Linux-fanatics, in this tutorial we will learn to use SELinux. Its been my experience that most Sys-Admins consider it a hassle & ends up disabling...

date & time

Playing with Date & Time in RHEL/CentOS

Last updated on March 12th, 2018 at 07:49 pmIn 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...

secure grub

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

Last updated on March 12th, 2018 at 07:54 pmHello 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...

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...

install webmin

Install WEBMIN panel on CentOS & Ubuntu

Last updated on March 12th, 2018 at 08:10 pmWebmin is web based system administration tool that can be used on Linux machines. Using it we can administer the Linux machines, we can use Webmin...

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...

I/O Redirection

12- BASH Scripting – I/O Redirection

Hello Linux-fanatics, in our previous tutorials we have discussed how we can redirect output of a script to a file or use a file as input in our scripts. We will now discuss I/O...

While loop & until loop

10-Bash Scripting – While loop & Until loop commands

Hello Linux-fanatics, In our last tutorial we learned to use READ command to take user’s Input & also learned to redirect output of a script to a file. In this tutorial we will be...

break command continue command

11- BASH Scripting – Break command & Continue command (Controlling the loops)

Last updated on March 12th, 2018 at 08:13 pmHello Linux-fanatics, In our last tutorial we learned to use while & until loops in our scripts & now in this tutorial we will discuss to...

read command

9- Bash Scripting- Taking user’s Input using Read command

Last updated on March 12th, 2018 at 08:14 pmHello Linux-fanatics. In our last tutorial we discussed for conditional statement, & now we will discuss how we can take user’s input as value for our...