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1. Introduction to NGINX

2. Apache HTTP Server Cookbook

3. VirtualBox Essentials

4. Nagios Monitoring Cookbook

5. Linux BASH Programming Cookbook

 

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FREE SysAdmin books with the SCG Newsletter

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Here at System Code Geeks we know how much you love books about system administration; we are geeks ourselves. After all, a geek that respects himself should always have his face in a book, he has to keep up with the latest technologies and developments. For this reason, we have decided to distribute 4 of our books for free. You ...

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Linux Commands With Examples

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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 ...

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Configuring SNMP in VMware ESXi

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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, ...

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Bash Environment Variables Tutorial

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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 ...

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Linux Remove User Example

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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 ...

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Configuring SNMP in a VMware vCSA

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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 ...

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Performance Tuning HAProxy

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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 ...

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PostgreSQL Database Tutorial

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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 ...

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Connect to PostgreSQL using PHP

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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 ...

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Linux Change Hostname Example

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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 ...

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Linux Box as Router

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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 ...

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Want to take your sysadmin skills to the next level?

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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