Do you want to know how to develop your skillset to become a sysadmin Rockstar?

Subscribe to our newsletter to start Rocking right now!

To get you started we give you our best selling eBooks for FREE!


1. Introduction to NGINX

2. Apache HTTP Server Cookbook

3. VirtualBox Essentials

4. Nagios Monitoring Cookbook

5. Linux BASH Programming Cookbook


and many more ....



Linux Commands With Examples

Regardless the experience, every Linux user must has, at least, a basic knowledge about the terminal and its usage. This tutorial will explain and show with examples the most used and important commands, after a brief explanation of how the commands work. For this tutorial, Linux Mint 18 has been used. Table Of Contents 1. What are the commands? Where ...

Read More »

Configuring SNMP in VMware ESXi

In this article, I’ll review the necessary information for how to configure SNMP v1 options in a VMware vSphere ESXi host. If you also need to configure SNMP in a vCenter Server Appliance (vCSA), please check out my previous article: Configuring SNMP in a vCSA If you’re already familiar with SNMP, and you’ve already enabled SSH on your ESXi host, ...

Read More »

Bash Environment Variables Tutorial

This is a Bash Environment Variables Tutorial. There exists two types of variables: Global Variables Local Variables Global variables or environment variables are available in all shells. The env or printenv commands can be used to display environment variables. Local variables are only available in the current shell. Apart from dividing variables in local and global variables, we can also ...

Read More »

Linux Remove User Example

Dealing with users is a task that every systems administrator has to deal with frequently. This example will show you how to delete users in Linux, looking at the two different available commands: The default utility, userdel; and a script that acts as more friendly front-end for the default utility, which is named deluser. For this example, Linux Mint 18 ...

Read More »

Configuring SNMP in a VMware vCSA

In this article, we’ll review the necessary information for how to configure SNMP v1 options in a VMware vCenter Server Appliance.  If you’re reading this article, you likely already know what SNMP is, as well as how to utilize it.  If not, let me at least give you a brief intro, stating what it is and what it’s used for.  If you’re ...

Read More »

Performance Tuning HAProxy

In a recent article, I covered how to tune the NGINX webserver for a simple static HTML page. In this article, we are going to once again explore those performance-tuning concepts and walk through some basic tuning options for HAProxy. What is HAProxy HAProxy is a software load balancer commonly used to distribute TCP-based traffic to multiple backend systems. It ...

Read More »

PostgreSQL Database Tutorial

Course Overview PostgreSQL, often simply Postgres, is an object-relational database management system (ORDBMS) with an emphasis on extensibility and standards-compliance. As a database server, its primary function is to store data securely, and to allow for retrieval at the request of other software applications. It can handle workloads ranging from small single-machine applications to large Internet-facing applications with many concurrent ...

Read More »

Connect to PostgreSQL using PHP

This article is part of our Academy Course titled PostgreSQL Database Tutorial. In this course, we provide a compilation of PostgreSQL tutorials that will help you set up and run your own database management system. We cover a wide range of topics, from installation and configuration, to custom commands and datatypes. With our straightforward tutorials, you will be able to ...

Read More »

Linux Change Hostname Example

The hostname are aliases or labels used to identify easily each device within a network. In Linux desktop versions, is the “computer name” that we are asked to specify during the installation. In this example, we can see how that hostname can be changed. For this example, Linux Mint 18 has been used. 1. What is a hostname? In a ...

Read More »

Linux Box as Router

In continuation of my previous posts where i’m create a distributed cloud infrastructure i need to connect VM’s on multiple Host Machines Pre knowledge of routing (IPTables) and networking is required for information below. Technically this is what containers like docker or software routers do internally when they need to connect 2 different network’s Lets assume HostMachine1 has VM’s on ...

Read More »

Want to take your sysadmin skills to the next level?

Grab our programming books for FREE!

Here are some of the eBooks you will get:

  • Linux BASH Programming Cookbook
  • NAGIOS Monitoring Cookbook
  • Introduction to NGINX
  • Apache HTTP Server Cookbook
  • VirtualBox Essentials
  • PostgreSQL Database Handbook