Showing headlines posted by aweber

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.

Nagios 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.

With 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.

VirtualBox is often used on the desktop through it's 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 it's name. We'll assume the guest OS is Debian, and that you've already installed VirtualBox itself to the host.

nginx 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. It follows the UNIX philosophy of doing one thing, and doing it well, and as such, it relies on several helper daemons to become a full-featured web server such as Apache. For example, to serve PHP, it relies on php-fpm to do the processing, while nginx itself handles the caching and speaking the HTTP protocol itself. In this article, we will talk about common configuration options, and how they relate to its performance.

A task of any operating system is to provide software that strongly increases its security. A lot of programs of this type have been created; some are better than others.

These seven steps to locking down security on your Linux Desktop may be one of the smartest things you ever did. Security increasingly becomes more important as we move to global network access.

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. You can create custom notifications and get notified via email, SMS or a pager.

Ubuntu, the leading desktop Linux distribution, has been looking at ways to add value to its offering for a while. The maturing Ubuntu One personal cloud service is just such an enhancement – but is it any good?

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

There are a number of ways to install applications on the Ubuntu desktop. You can use the Ubuntu Software Center, apt-get from the command line or download applications from the Internet. This article will help you work through each of those options.

NRDS, Nagios Remote Data Sender, is a component of Nagios XI that provides a passive method of communication. The unique aspect of NRDS is that on the Nagios server the administrator can design and build the configuration for multiple operating systems and then deploy those configurations with the plugins to the client.

Learning some basic methods to navigate and customize the launcher can make it an efficient tool that is used to complete daily tasks. With several icons located in the launcher, reordering the applications may reduce your time searching for your desired program to execute.

The Nagios 2012 World conference starts today and one of the major events of the conference will be the demonstrations of the Nagios 2012 interface by Ethan Galstad. I have been running the beta for several weeks in the Nagios Training classes and the response has been very favorable about the new features. Here is a list of a few to look for.

Ubuntu 12.04 includes a desktop interface that is a strong departure from previous versions. One of the most striking differences upon logging into the system is the launcher. The launcher is a vertical bar that, by default, resides along the left side of the screen. It is similar to the dock in Mac OS X and aims to make your user experience more efficient and intuitive.

The task this book sets out to do is impossible and many who purchase the book will expect a great deal more. Everyone wants a one volume answer guide to the Ubuntu Desktop, it simply is not possible. The goal of the current book, is to provide “jumping-off point to get started.”

Webmin can be used to create and edit mail aliases which can be used to send mail to individuals, groups, lists or even applications. Webmin is a web based front end used for monitoring Linux servers which have no GUI.

Webmin provides a web based interface to manage an Ubuntu server. One of the management options is to configure daemons to start at boot time. This task can be performed using Webmin.

Netflow with Cisco routers can be set up and integrated with Nagios for detailed information about traffic data on your routers and switches. Using nfdump and nfsen this data can be gathered and charted and then connected to the Nagios interface.

Gimp 2.8 comes with several exciting features that have enhanced my work flow. Although my favorite feature is the single window mode I’ve also been using the new Cage Transform tool today and have found it quite impressive.