Free Newsletters :

More articles by Rafael Hernandez

OpenVPN: Revoking Access and Expanding Management Options
By Rafael Hernandez |  Article Published January 9, 2009
That OpenVPN connection sure does give you a sense of security doesn't it? There are still a few more things you should know to extend what the software can do.
Know Your Network: Switches, Bridges, and Routers
By Rafael Hernandez |  Article Published October 16, 2008
It isn't magic. Your data ends up where it needs to be thanks to some key components of your network infrastructure. Understanding their capabilities and the differences between each is a solid first step in planning your network.
Google Chrome: A Shiny New Salvo in the Browser War
By Rafael Hernandez |  Article Published September 8, 2008
The venerable web browser has been a boon — and oftentimes immensely frustrating — to the PC user for over a decade. Now Google steps in and attempts to protect users from web peril.
For Starters: The Virtualization Performance Quandary
By Rafael Hernandez |  Article Published August 1, 2008
Virtualization, despite its benefits, isn't without its drawbacks. Luckily, both software and hardware makers are addressing the performance penalty part of the equation.
For Starters: Virtualization - Part 3
By Rafael Hernandez |  Article Published July 10, 2008
If your focus is the Microsoft Windows platform, you'd be well served by the company's free Virtual PC software. But if you're interested in the open source competition, take a look at VMware's Player.
For Starters: Virtualization - Part 2
By Rafael Hernandez |  Article Published June 9, 2008
While virtualization has had a large impact on the way people work, its been largely limited to servers and the tech guru in the back office with an insatiable appetite for the latest technologies. Now, with Microsoft's Virtual PC 2007, mere mortals can tinker.
For Starters: Virtualization - Part 1
By Rafael Hernandez |  Article Published May 12, 2008
Virtualization has been one of the most highly touted benefits of server hardware released over the past few years. The technology isn't just for big iron, though, and there's plenty of reasons to try it out on your own hardware.
Open Source Router Firmware: Expanding Possibilities
By Rafael Hernandez |  Article Published April 30, 2008
While Tomato is this author's firmware of choice, there are plenty of other options that offer some compelling functionality of their own.
Tomato: Adding Sauce to Entry-Level Routers - Part 3
By Rafael Hernandez |  Article Published April 14, 2008
Setting up those features on your supercharged, firmware-enhanced router can be a bit daunting. Part 3 of this series deals with common features for getting better performance out of net-based applications and making the most out of your new-found packet freedom.
Tomato: Adding Sauce to Entry-Level Routers - Part 2
By Rafael Hernandez |  Article Published March 17, 2008
Part 1 of this series covered a few of the nifty features open source enthusiasts have been adding to consumer grade Internet routers. Now it's time to see how tinkering with these modified firmwares can allow for advanced network configurations, not to mention save you time and money.
Tomato: Home Upgrades to Entry-Level Routers
By Rafael Hernandez |  Article Published February 13, 2008
When it comes to advanced network configuration and management for your SOHO or SMB, that wireless router you bought at the big box store will disappoint. Thanks to some open source coders, however, near enterprise-class capabilities and reliability are just an upgrade away.
Flash vs. Platters
By Rafael Hernandez |  Article Published January 14, 2008
Solid state drives offer a tantalizing glimpse at the future of enterprise storage. But one glaring shortcoming -- beyond price and capacity -- is holding them back.
GPGPU: A Stream Computing Story
By Rafael Hernandez |  Article Published December 14, 2007
Keeping up with the Joneses in the high-performance computing realm used to mean some mighty large clusters. Promising work in a field stemming from graphics cards may soon provide a different source of computing power for businesses and labs in the form of Stream Processing.