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This guide provides an overview on how to set up umbrella monitoring to monitor applications and devices in distributed networks. Multiple instances of monitoring systems (in this example Verax NMS express) can be configured in a tree-like, master-slave, federated umbrella monitoring structure. This umbrella-like monitoring can be used to monitor geographically distributed networks e.g. by telecommunications operators to manage regional, state and national networks or managed service providers for managing their clients' infrastructure.

First public OpenStack release from Red Hat lays the groundwork for future enterprise adoption and support.

The Slackware developers have delivered the first release candidate of Slackware 14. According to the developers, all bugs from the beta have been fixed and many packages were refreshed

There's been much ado about Linux desktops in recent months, but few would dispute KDE's prominence among them. That, indeed, is one of the many reasons there's been so much concern over Nokia's impending sale of the Qt toolkit, upon which KDE is based.

The open source Rootbeer GPU compiler allows Java programs to be executed on graphics processors. The developer has included 39 separate test cases that all complete successfully on Linux and Windows

This is the short linux and open-source news overview for week 32 of 2012. It features small articles bundeling (important) open source related news in one page. This week includes the Common Desktop Environment, A new tool I've written, Nautilus fork Nemo, a new release of Damn Small Linux, ClearOS 6.3, Scientific Linux 6.3, Roundcube 1.8, NVIDIA screwing up their driver, Cyanogenmod 9, Textmate and more...

Sometimes, however, mobs form. Posses meet up outside a hated website and hit the owners with barrages of venomous email. If a site has a forum or a Facebook page, they try to take over. If it’s supported by ad money, they might launch a campaign against the advertisers, as happened in 2010 with Cooks Source Magazine–a New England site brought down by web users for cavalierly stealing content.

If all of this fails to satisfy the mob’s thirst for blood, they might take their anger directly to the website’s landlord, the hosting company, with burlap bags filled with DMCA take-down notices the host can’t afford to ignore.

Matthias Clasen gave readers of his blog another one of his release previews this Saturday of the upcoming GNOME 3.5.5. The big feature this release is the "new screen lock implementation." Beyond that, various applications and System Settings received some improvements as well. Clasen said the new screen lock mechanism is actually a sheild that lifts when depressing "Esc" or by dragging with the mouse. Underneath is the unlock screen. Clasen said it still has a few issues, but it works well.

Drupal is a free and open-source content-management system (CMS) based on PHP and Mysql, Drupal allows an individual or community of users to publish, manage and organize a variety of content.

The CEO of Intellectual Ventures says his company’s philanthropy means he is doing more good for the world than GigaOM. The claim fails to account for the harm to innovation he is causing through ruinous patent suits.

How to mount partitions without authentication in Fuduntu. In Fuduntu, if you have other internal partitions ( when you use dual boot with Windows, for example), you will see this dialog box asking for the root password when you try to mount these partitions..

If I said MacPup to you would you think of a sleek stylish operating system that runs from memory and boots from a USB drive?

Mageia is a distribution forked from Mandriva some time ago. That's not a secret. Also, it's not a secret that Mandriva's preferred desktop environment was KDE. Even the fact that the latest version Mandriva 2011 has only a KDE option proves that position. At the same time, Mageia continued the old Mandriva strategy, and released their distribution with two options: KDE and GNOME. I have only tried Mageia KDE so far, and had no chance to try GNOME. I finally got a chance to try Mageia 2 GNOME myself.

LXer Feature: 12-Aug-2012

The latest installment of the LXer Weekly Roundup for your reading pleasure. Enjoy!

Secure boot saga continues as distros new and old continue forward looking development

With OpenGL ES 3.0 and OpenGL 4.3 there is now mandatory texture compression support in the form of ETC2, the Ericsson Texture Compression method...

Ubuntu software repository is one of the bigger, and this means that you can easily install a lot of software with the Ubuntu Software Center or from the command line with a simple sudo apt-get install softwarename, but sometimes you want a software that is not present or perhaps a newer release of the one available in the main repository, in this cases you can use a PPA.

A Personal Package Archive (PPA) is a special software repository for uploading source packages to be built and published as an APT repository by Launchpad or a similar application, once is published anyone can use it and install software from there, just keep in mind that once that you add a PPA you “trust” the software published from that source, so add PPA only when really needed and only from known and safe sources.

Y PPA Manager is a software that can help you in manage,add,remove and search easily PPA in your Ubuntu.

The OpenGL ES 3.0 specification was released earlier this week at SIGGRAPH 2012. The slides from the OpenGL ES BoF session have now surfaced with more perspective on this latest Khronos standard targeting OpenGL on mobile devices...

Slidewall is a wallpaper changer that comes with some interesting features: besides allowing you to use all images in a folder as a wallpaper slideshow, the application supports live wallpapers: live earth wallpaper, wallpaper clocks and more.

I'd like to introduce to you a new bundle concept by the Humble Bundle team. This time, there were not games, but music albums from some famous internet's musicians.