Category: Tips & Tricks

create swap

How to create SWAP SPACE in Linux system

Swap file or swap space is a file on Linux file-system that is used to hold programs or pages, in the event that the Physical memory aka RAM of the machine is full. Swap...

Linux File LInks

Working with Linux File Links

In this article by Oliver Pelz, the author of Fundamentals of Linux, you’ll take a look at what Linux file links are and how to work with them. Linux File Links As you may already know,...

crontab examples

Scheduling important jobs with CRONTAB : Crontab Examples

Crontab is very important utility in Linux systems & is used to set up time based job scheduling.  With the help of Crontab or cron, we can execute a command or a script to...

Redis CLI Commands

SysAdmin’s guide to REDIS CLI Commands

Redis is an open source in-memory data structure store that is mainly used as a caching server but can also be used as a database or as a message broker. We have already discussed...

install varnish

Install Varnish Cache for Apache Web Server to Speed up Website

Varnish or Varnish cache is an open source http proxy/accelerator that is put in front of webserver, for the purpose of speeding up the webserver (Apache & nginx both), it’s especially meant for webservers...

sha2 certificate

Secure your website with SSL sha2 certificate

Securing websites, especially those that saves users information, is of utmost importance. We use SSL certificates to secure communication between users & websites. SSL certificates helps in encrypting communication between user & website, so...

traceroute command in linux

ABC of using Traceroute command in Linux

Traceroute command is well known networking utility using which we can determine the number of hops between source & destination of a network packet. Not only does it show the number of hops, we...

rsync examples

Where to start with Rsync command : 8 Rsync Examples

In this article, we are going to discuss some of the commonly used rsync examples that will familiarise you with rsync & help you get started with using rsync command. Rsync command is used...

Gitlab tutorial for Beginners

Informative guide to Gitlab tutorial for Beginners

This gitlab tutorial for beginners is actually a collection of various tutorials that we have already published & purpose of writing this tutorial is actually to make it easy for readers to get all...

examples of SED command

Let’s discuss some examples of SED command

Sed command or Stream Editor is one of the most utilised utility for Linux systems. It is mainly used for text substitution, find/replace operations & also other text manipulations like search, insertions deletion. We...

useful Linux shortcuts

Informative guide to useful Linux shortcuts

Using Linux means using command line interface aka CLI aka terminal on regular basis. Being good in using CLI is what separates a casual Linux user & an expert. In this tutorial, we will...

network monitoring

Monitoring network bandwidth with iftop command

System Admins are required to monitor IT infrastructure to make sure that everything is up & running. We have to monitor performance of hardware i.e memory, hdds & CPUs etc & so does we...

let's encrypt on centos

Create a free Apache SSL certificate with Let’s Encrypt on CentOS & RHEL

Let’s Encrypt is a free, automated & open certificate authority that is supported by ISRG, Internet Security Research Group. Let’s encrypt provides X.509 certificates for TLS (Transport Layer Security) encryption via automated process which...

compare files in Linux

Simple way to compare files in Linux for differences

There are many GUI tools available to compare files & folders to check for any changes or dissimilarities, but it does not mean that one can’t perform comparison or diff using CLI on a...

Send mail from terminal

Mail Command : Send mail from terminal on Linux machines

There are plenty of ways for sending email while using GUI , using browser or with an email client. But options are limited when it comes to command line interface aka CLI. In this...

create Bootable Linux Flash Drive

Learn to create Bootable Linux Flash Drive (using Ubuntu)

To be able to install Ubuntu or any other Linux OS or even any other OS like Windows etc, we either need a bootable FlashDrive or a DVD of the OS. In this tutorial,...