LinuxTechLab Blog

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...

install Docker on Ubuntu

Learn Docker : Easy way to install Docker on Ubuntu

A Docker container provides a way to run multiple isolated systems on a single server or host. Each container shares kernel (& libraries also) of the host’s operating system. And since each container that...

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...

create docker container

Create your first Docker container : A Beginner’s guide

Docker containers are making news for some time now & there popularity has been growing day by day. They are now being adopted at a fast pace & are replacing Virtual machines especially when...

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...

Gitlab tutorial

A Gitlab tutorial — Things to do after installation

Earlier we have discussed detailed installation of Gitlab server on CentOS & Ubuntu systems. Once we have our Gitlab server ready, we must be able to perform common operations like the ones mentioned below,...

how to install java on ubuntu

Easy guide on how to install Java on Ubuntu systems

Java is a high level programming language that is being used for a large number of applications & is installed on large number of servers/systems. We have already covered how we can install java...

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...

wildfly cluster

Creating a Wildfly cluster for load-balancing in Linux

In our earlier tutorial, we have learned to install wildfly 10.1.0. in this tutorial, we will learn to create a load-balancing wildfly cluster. We will be using wildfly verison 10.1.0, which is the latest...

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...