Comment Virtual NetManager (Score 1) 138

by Danielinux on Tuesday June 08, 2010 @09:13AM (#32494882) Attached to: Visual Network Simulator To Teach Basic Networking?

If you think you can go with virtualization in place of simulation, take a look at Virtual NetManager. It is a visual tool to build virtual networks on a single box using VDE and Qemu/KVM. Every single device (switches, cables, routers and boxes) can be virtualized and controlled from the interface. Get documentation and screenshots here.

Comment Re:be real (Score 1) 272

by Danielinux on Monday March 23, 2009 @01:11PM (#27300543) Attached to: Reasonable Hardware For Home VM Experimentation?

VMs aren't good for much. I found my computer usage is more intense than I realized, and that's where VMs fall down. They're good for test environments, throwaway software installations, and light duty servers. I'd rather have real hardware.

I don't agree on I/O and overall performance. I managed to test several TCP connections on the same box using a paravirtualized environment (linux+kvm) with CPU virtualization extensions. On a quad-core I can emulate up to 6 virtual boxes with the very same performance as the 'real' setup.

However, it's often a matter of software you choose. Last time I used VMware it was crap. You will have to choose a fully paravirtualized environment running on a CPU with V.extensions, as well as the correct tools to construct your virtual ethernet network.

VDE [http://wiki.virtualsquare.org] is a complete tool that gives you the correct network infrastructure to connect together real and virtual machines reliably and with great performance (Gigabit), expecially if used with the IPN kernel patch.

And if you are lazy, there is a complete GTK application called "Virtual NetManager" to manage all your virtual stuff (create network scenario, configure and start machines on different cpu arch, etc.) with a click.

Palm Announces Killer New Phone 617

Posted by kdawson on Friday January 09, 2009 @09:53AM from the j-phone dept.

Barence writes "At CES, Palm announced what promises to be the product that finally matches and even betters the Apple iPhone, and certainly looks to be the most important product announced at this year's Consumer Electronics Show. It's called the Palm Pre and it's based on a completely new operating system, called Palm webOS. Its key specs include a 3.1in 320x 480 touchscreen, 8GB of storage, UMTS HDSPA support (in the UK version of the phone), 802.11b/g WLAN, Bluetooth, and GPS. It also includes a slide-out Qwerty keyboard, 3.5mm headphone jack, and what Palm described as the 'fastest ever' Texas Instruments OMAP processor."

6-Year-Old Says Grand Theft Auto Taught Him To Drive 504

Posted by timothy on Friday January 09, 2009 @12:24AM from the buck-beats-scapegoat dept.

nandemoari writes "A six-year-old who recently stole his parents' car and drove it into a utility pole has passed the buck onto a familiar scapegoat: the video game, Grand Theft Auto. Rockstar Games' controversial Grand Theft Auto video game has been criticized by parent groups and crusaders (or in the eyes of gamers, nincompoops) like former lawyer Jack Thompson for years (Thompson once tried to link the Virginia Tech slayings to late-night Counterstrike sessions. He's since been disbarred). However, not as of yet has anyone under the age of, oh, ten, blamed the game for a car theft."

More Brains Needed 232

Posted by samzenpus on Thursday January 08, 2009 @06:10PM from the we're-not-unreasonable-I-mean-no-one's-gonna-eat-your-eyes dept.

Hugh Pickens writes "BBC reports that more people need to donate their brains to medical research if cures for diseases like dementia are to be found and are urging healthy people as well as those with brain disorders to become donors. 'For autism, we only have maybe 15 or 20 brains that have been donated that we can do our research on. That is drastically awful,' said Dr Payam Rezaie of the Neuropathology Research Laboratory at the Open University. 'We would need at least 100 cases to get meaningful data. A lot of research is being hindered by this restriction.' Part of the problem, according to Professor Margaret Esiri at the University of Oxford, may be that people are reluctant to donate their brains because they see the organ as the basis of their identity. 'It used to be other parts of the body that we thought were important,' says Esin. 'But now people realize that their brain is the crucial thing that gives them their mind and their self.' Dr Kieran Breen, of the Parkinson's Disease Society, said over 90% of the brains in their bank at Imperial College London were from patients, with the remaining 10% of 'healthy' brains donated by friends or relatives of patients. 'Some people are under the impression that if they sign up for a donor card that will include donating their brain for research. But it won't,' says Breen. 'Donor cards are about donating organs for transplant, not for medical science.'"

Ballmer Sets Loose Windows 7 Public Beta At CES 672

Posted by timothy on Thursday January 08, 2009 @04:30PM from the conventional-wisdom-ranks-it-high dept.

CWmike writes "The rumors turned out to be true. Microsoft will release a public beta this week of its next desktop operating system, Windows 7, hoping it will address the problems that have made Windows Vista perhaps the least popular OS in its history. Microsoft CEO Steve Ballmer will launch the beta during his speech at the start of the Consumer Electronics Show in Las Vegas on Wednesday. Preston Gralla reviewed Windows 7 beta 1, noting 'Fast and stable, Beta 1 of Windows 7 unveils some intriguing user-interface improvements, including the much-anticipated new task bar.' MSDN and Technet subscribers should be able to get the public data tonight. The general public will have to wait until Friday."

US Army Sees Twitter As Possible Terrorist "Operation Tool" 320

Posted by timothy on Sunday October 26, 2008 @02:18PM from the which-technically-is-true dept.

Mike writes "A draft US Army intelligence report has identified the popular micro-blogging service Twitter as a potential terrorist tool. A chapter titled 'Potential for Terrorist Use of Twitter' notes that Twitter members reported the July Los Angeles earthquake faster than news outlets and activists at the Republican National Convention in Minneapolis used it to provide information on police movements. 'Twitter is already used by some members to post and/or support extremist ideologies and perspectives,' the report said. The report goes on to say, 'Terrorists could theoretically use Twitter social networking in the US as an operation tool.' Just wait until the Army finds out about chat rooms and email!"

Getting Hired As an Entry-Level Programmer? 540

Posted by kdawson on Tuesday October 14, 2008 @12:14AM from the foot-in-door dept.

An anonymous reader writes "I received a state university degree in Computer Science. After graduation, I immediately took jobs in QA to pay the bills while waiting for other opportunities, which of course turned out to be as naive as it sounds. I've been working QA for several years now and my resume does not show the right kind of work experience for programming. On the whole I'm probably no better as a a candidate than a CS graduate fresh out of college. But all of the job postings out in the real world are looking for people with 2-5 years of programming work experience. How do you build up those first 2 years of experience? What kinds of companies hire programmers with no prior experience?"