When You use 'sudo' command it will ask for password in First time and will remember password for 15 minutes. It is a security hole for sensitive systems.You can change sudo Password Remembering Time in Ubuntu .

Where virtualization is concerned, "free" certainly doesn't equate with "cheap". Sun's VirtualBox is a perfect example of that. For non-commercial use, it's a cost-free hypervisor that's feature-robust, offers great performance and stability, and supports a wide-variety of guest operating systems.

It seems that for every possible niche that exists in the world, someone out there has made a Linux distribution for it. These niches can be practical (Scientific Linux), philosophical (gNewSense), or even geographical (MoLinux). This distribution is none of the above.

Some sites are reporting that the Nouveau driver (a reverse-engineered 3D driver for NVIDIA hardware) will be merged for 2.6.33. It is worth pointing out that this has not (yet) happened. Here's what has happened:

Red Hat actually opened up the SPICE protocol yesterday during their Virtual Experience 2009 event. Somehow I missed that. Have a look at the press release if you are interested... as well as their site to house the new open source project - spice-space.org.

Canonical, and the Ubuntu developers, have announced the availability of the first alpha release of Ubuntu 10.04 LTS, code named "Lucid Lynx". The first development milestone is the first of three planned alpha releases.

For roughly two years, readers have told WorksWithU they have a difficult time finding Ubuntu desktop and laptop options on Dell’s U.S. Website. Apparently, Dell heard the constructive criticism. Only a few weeks after Windows 7's launch, Dell is giving Ubuntu more real estate on the Dell U.S. website. Here's the scoop.

It’s almost that time again – time to start chatting up the next release coming out of the Ubuntu-verse. I know, I know…it seems the tires of 9.10 were just kicked. They were. But what should be expected of Ubuntu?