Server

We continue to index Linux server tutorials and other learning resources for Linux administrators. A few of the topics we write on include the Ubuntu server, CentOS, Nagios monitoring, Postfix mail server, and Bash Shell scripting. We also provide training classes and self-paced products in these areas.

Thank you for visiting, enjoy these Linux server tutorials.



Load Balancing With Apache
Server - Web Server

Apache makes for a great load balancer, with the help of mod_proxy and mod_proxy_balancer. If you use Apache as the back end, this makes deploying new back ends very easy, as everything in the cluster will use the same software load out.

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How To Migrate A LAMP Stack
Server - Web Server

Sooner or later, your operations are going to need to scale out to bigger and better servers. You'll have to migrate your application to new hardware. Here's how to do it.

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nginx Load Balancing
Server - Web Server

nginx Load Balancingnginx is well known for being a front-end load balancer. It often sits between the client accessing the web site, and the PHP back ends that process your dynamic pages. While doing this, it will also perform admirably as a static content server. Here's how to get this going.

 

 

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Nagios Menu Modifications
Server - Nagios

Nagios Menu ModificationsNagios provides a menu that can be modified to fit individual needs. In order to facilitate changes in the menu, you will need to modify the code which is in the PHP pages. This means that the menu may reflect the style and changes you want but it also means that you will need to copy any changes to prepare for updates which may revert back to the standard installation.

 

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MySQL to Maria DB Migration
Server - Server Management

MySQL to Mario DB MigrationWith Oracle's fairly recent acquisition of MySQL, a lot of people are looking to move away from MySQL in fear of Oracle changing the licensing, which could force you to change database backends. As such, today we'll migrate from MySQL to MariaDB, which is a popular alternative to MySQL. MariaDB was initially forked in January of 2009. We can make this transition quickly, but not without some downtime, as we can't have both databases working on the same files simultaneously. These instructions are good for all popular distributions of GNU/Linux, however Debian 7 (Wheezy) will be used in the reference code shown.

 

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VirtualBox Headless Administration
Server - Virtualization

VirtualBox Headless AdministrationVirtualBox is often used on the desktop through its GUI interface. Sometimes, though, you'll need to run it on a headless server somewhere on the internet. Our demonstration setup today is on a Debian 7 (Wheezy) system, and the virtual machine we're creating will use a placeholder of $VM for its name.

 

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Basic nginx Configuration
Server - Web Server

nginx Configurationnginx is a powerful and modern HTTP server. It is perhaps most commonly used as a reverse proxy, also known as a load balancer or front end proxy.

 

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Using Nagios to Detect Network Sniffers
Server - Nagios
As security becomes more of an issue for all businesses, Nagios can be used to cover some of those 
security details. In this article Nagios is used to located network cards that may be in the process 
of sniffing network traffic.
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Monitoring Servers with Webmin
Server - Web Server

Monitoring Servers With Webmin

This is an interesting feature in Webmin that provides a way to monitor daemons on the server and notify administrators of down services. Webmin attempts to implement many of the standard functions of the more full featured Nagios.

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Troubleshooting Mail on Nagios XI
Server - Nagios

Troubleshooting Mail on Nagios XI

Email management and troubleshooting can be a challenge as there are so many options and configuration choices that can get twisted.

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