Category: How To’s

creating vagrant boxex

Complete guide for creating Vagrant boxes with VirtualBox

Vagrant is tool for building & managing virtual machines environment, especially development environments. It provides easy to use & easy to replicate/reproducible environment built on top of technologies like Docker, VirtualBox, Hyper-V, Vmware ,...

install PostGreSQL on Ubuntu

Simple guide to install PostGreSQL on Ubuntu

PostgreSQL or Postgres, is a very powerful, highly scalable relational database system, that provided implementation of SQL query language. It is open source & can be installed on Unix/Linux system as well as on...

install clamav

How to install ClamAV (Antivirus) & ClamTK on Linux

Linux is known for its high standards of security & there are very low amount of viruses that has been known to infect a Linux system. But in the recent times as technology is...

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...

Easy way to install PostgreSQL on CentOS

PostgreSQL or Postgres, is a very powerful, highly scalable relational database system, that peovided implementation of SQL query language. It is open source & can be installed on Unix/Linux system as well as on...

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...

Add and Remove Users in Ubuntu

How to Add and Remove Users in Ubuntu

  Learn how to add and remove users in Ubuntu in this guest post by Jay LaCroix, a Linux expert and the author of Mastering Ubuntu Server – Second Edition. Creating users in Ubuntu can be...

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...

Apache with modsecurity

Easy way to integrate Apache with modsecurity on Ubuntu

ModSecurity WAF (Web Application Firewall ) is an open source software firewall that is used to safeguard applications from attacks & unauthorised access. ModSecurity WAF can be used as a module with already installed...

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...

mongodb installation

MongoDB installation & configuration on RHEL/CentOS

MongoDB is one of the famous , free & open source document oriented No-SQL database server. MongoDB uses JSON like document format to store data in database, rather than using rows & columns, as...

apache as reverse proxy

How to use Apache as Reverse Proxy on CentOS & RHEL

Reverse proxy is a kind of proxy server that takes http or https request & transfers/distributes them to one or more backend servers. Reverse proxy is useful in many ways, like – It can...

installing mod_pagespeed

Installing mod_pagespeed for Apache webserver

Pagespeed or mod_pagespeed is an open source module used in apache & is used to speed up the websites. It applies various layers of filters to all the associated assets like pages, style-sheets, images...

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...

Installing memcached

Installing MEMCACHED in Ubuntu & RHEL/CentOS

Memcached is a very popular, open source distributed memory caching system, that is used for temporarily storing information that is most likely to be used by a databse. It is primarily used to boost...

install Docker compose

Lazy SysAdmin’s guide to install Docker Compose

In this tutorial, we are going to learn about Docker Compose & process to install Docker compose on your Linux machines. With the help of docker compose, we can create & run multi-container Docker...