LinuxTechLab Blog

Linux Network Traffic Monitoring

Top 7 commands for Linux Network Traffic Monitoring

Monitoring is one of the main task that anyone SystemAdmin or even a normal user should know about to get the best out of their systems/servers & avoid any issues. In this tutorial, we...

Complete monitoring solution : Install OMD (Open Monitoring Distribution)

OMD or Open Monitoring Distribution is one of the best things that will make every System Admin’s day. OMD is an open source server, network monitoring tool that comes bundled with a number of...

PostgreSQL commands

Important PostgreSQL commands you should know

In this tutorial, we will learn about some useful PostgreSQL commands. We have already discussed the installation of PostgreSQL on CentOS & on Ubuntu systems. So let’s start, Recommended Read : MongoDB installation & configuration...

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...

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...

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,...

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...