News WBITT, We Bring In Tomorrow\'s Technology. A concept by Muhammad Kamran Azeem from Pakistan http://www.wbitt.com/news.html Sat, 25 Apr 2015 21:41:02 +0000 Joomla! 1.5 - Open Source Content Management en-gb 25-GPU cluster cracks every standard Windows password in less than six hours http://www.wbitt.com/news/363-25-gpu-cluster-cracks-every-standard-windows-password-in-less-than-six-hours.html http://www.wbitt.com/news/363-25-gpu-cluster-cracks-every-standard-windows-password-in-less-than-six-hours.html A password-cracking expert has unveiled a computer cluster that can cycle through as many as 350 billion guesses per second. It's an almost unprecedented speed that can try every possible Windows passcode in the typical enterprise in less than six hours.

The five-server system uses a relatively new package of virtualization software that harnesses the power of 25 AMD Radeon graphics cards. It achieves the 350 billion-guess-per-second speed when cracking password hashes generated by the NTLM cryptographic algorithm that Microsoft has included in every version of Windows since Server 2003. As a result, it can try an astounding 958 combinations in just 5.5 hours, enough to brute force every possible eight-character password containing upper- and lower-case letters, digits, and symbols. Such password policies are common in many enterprise settings. The same passwords protected by Microsoft's LM algorithm—which many organizations enable for compatibility with older Windows versions—will fall in just six minutes.]]> kamran@wbitt.com (Muhammad Kamran Azeem) Latest Sat, 15 Dec 2012 10:51:26 +0000 Linux brings over €10 million savings for Munich http://www.wbitt.com/news/362-linux-brings-over-10-million-savings-for-munich.html http://www.wbitt.com/news/362-linux-brings-over-10-million-savings-for-munich.html Over €10 million (approximately £8 million or $12.8 million) has been saved by the city of Munich, thanks to its development and use of the city's own Linux platform. The calculation of savings follows a question by the city council's independent Free Voters (Freie Wähler) group, which led to Munich's municipal LiMux project presenting a comparative budget calculation at the meeting of the city council's IT committee on Wednesday. The calculation compares the current overall cost of the LiMux migration with that of two technologically equivalent Windows scenarios: Windows with Microsoft Office and Windows with OpenOffice. Reportedly, savings amount to over €10 million.

The study is based on around 11,000 migrated workplaces within Munich's city administration as well as 15,000 desktops that are equipped with an open source office suite. The comparison with Windows assumes that Windows systems must be on the same technological level; this would, for example, mean that they would have been upgraded to Windows 7 at the end of 2011. Project parameters such as scope, duration, applied methodology or external support were assumed to be the same in all scenarios. ]]>
kamran@wbitt.com (Muhammad Kamran Azeem) Latest Sat, 01 Dec 2012 07:37:59 +0000
University of Southampton team builds cheap 64 node supercomputer with Raspberry Pi and Legos http://www.wbitt.com/news/361-university-of-southampton-team-builds-cheap-64-node-supercomputer-with-raspberry-pi-and-legos.html http://www.wbitt.com/news/361-university-of-southampton-team-builds-cheap-64-node-supercomputer-with-raspberry-pi-and-legos.html Computational Engineers at the University of Southampton have built a supercomputer from 64 Raspberry Pi computers and Lego.

Inspired by the low-cost computing power of the Raspberry Pi, a team at the University of Southampton has used the ARM-based Linux computer-on-a-board as a building block for a low-cost supercomputer—racked and stacked using Lego blocks. And they’ve published a step-by-step guide for anyone interested in creating their own Raspberry Pi high-performance computing “bramble."

Led by Professor Simon Cox, with Lego expertise lent by Cox’s 6-year old son James (who spent the summer learning to program on the Raspberry Pi using Python and MIT's Scratch), the team used 64 Raspberry Pi computers, each equipped with a 16-gigabyte SD card to construct a functioning computing cluster for under £2,500 (a bit over $4,000)—not including the Ethernet switches used to connect the nodes.

The racking was built using Lego with a design developed by Simon and James, who has also been testing the Raspberry Pi by programming it using free computer programming software Python and Scratch over the summer. The machine, named “Iridis-Pi” after the University’s Iridis supercomputer, runs off a single 13 Amp mains socket and uses MPI (Message Passing Interface) to communicate between nodes using Ethernet. The whole system cost under £2,500 (excluding switches) and has a total of 64 processors and 1Tb of memory (16Gb SD cards for each Raspberry Pi). Professor Cox uses the free plug-in ‘Python Tools for Visual Studio’ to develop code for the Raspberry Pi.

Read the rest of the story here, and here.

Reference Links:
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kamran@wbitt.com (Muhammad Kamran Azeem) Latest Sat, 20 Oct 2012 17:29:45 +0000
We now have a YouTube channel! http://www.wbitt.com/news/359-we-now-have-a-youtube-channel.html http://www.wbitt.com/news/359-we-now-have-a-youtube-channel.html (Finally,) We heard you!

We have finally decided to put an end to all overheads of managing CBTs / videos. We now have a YouTube channel "KamranAtWBITT". We are in process of moving all of our videos from Google Docs / Google Cloud , to YouTube.

The videos which were reported to have problems are also being fixed along the way.  Viewers / students should not have any problem anymore. We have created several playlists, to help categorize the CBTs according to the topic.  The videos in the play lists are also in a proper sequence.

We hope that these steps will help resolve all the problems and complaints, which our users have been experiencing.

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kamran@wbitt.com (Muhammad Kamran Azeem) Latest Tue, 10 Apr 2012 09:31:24 +0000
Problem while playing some videos in WBITT's Downloads section http://www.wbitt.com/news/353-problem-while-playing-some-videos-in-wbitts-downloads-section.html http://www.wbitt.com/news/353-problem-while-playing-some-videos-in-wbitts-downloads-section.html There are constant complaints that some of the videos at our downloads section, are not playing correctly in the browser window. And, some videos are not playing at all ! We want to clarify, that the videos (which are problematic) will play properly, if you download them to your local PC. There is always a download link right above the video you are trying to watch. This should help.

This problem exists only on the Google Docs / Sites. Apparently Google messes up the online version of the video file while trying to process it, such as some .ogv files. It is confusing to see that some .ogv files are playing correctly, and some are not. There are some file formats, which google does not understand at all, such as .ogg  files. We have no direct control over it. The only solution at the moment, is to download the original version of the problematic video to your local PC, and play it from there.

VLC player should be able to play almost all types of the video files available at our downloads section (http://downloads.wbitt.com).

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kamran@wbitt.com (Muhammad Kamran Azeem) Latest Mon, 15 Aug 2011 05:48:08 +0000
WBITT Downloads moved to Google Cloud http://www.wbitt.com/news/352-wbitt-downloads-moved-to-google-cloud.html http://www.wbitt.com/news/352-wbitt-downloads-moved-to-google-cloud.html http://downloads.wbitt.com , and browse their way to the desired content. The new website (hosted on Google Sites), provide a way to directly view the video, without a need to download the complete file. A separate download link is always provided for 'just in case'.]]> kamran@wbitt.com (Muhammad Kamran Azeem) Latest Sat, 16 Jul 2011 11:44:26 +0000 CentOS 5.5 i386 WebServer Edition 0.3 is released http://www.wbitt.com/news/340-centos-55-i386-webserver-edition-03-is-released.html http://www.wbitt.com/news/340-centos-55-i386-webserver-edition-03-is-released.html The CENTOS 5.5 i386 WebServer Edition CD has been updated to fix a small bug. The CD, now at revision 0.3, provides a crucial package "kudzu", which is needed to provide text console, if the ISO is to be run as a VM on XEN host. The ISO is available as free download at WBITT downloads section.


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kamran@wbitt.com (Muhammad Kamran Azeem) Latest Sat, 26 Mar 2011 06:23:46 +0000
CENTOS 5.5 x86_64 Hypervisor Edition 0.2 is released http://www.wbitt.com/news/339-centos-55-x8664-hypervisor-edition-02-is-released.html http://www.wbitt.com/news/339-centos-55-x8664-hypervisor-edition-02-is-released.html The CENTOS 5.5 x86_64 Hypervisor Edition CD has been updated to provide additional (64 bit) RPMs. In addition to the XEN and KVM hypervisors, and their related tools, the CD, now at revision 0.2, also provides essential pacakges needed to setup a web/database/mail server. The single CD solution will now take care of your physical and virtual machines. The following packages are added to this version:

  • Apache Web Server (with SSL)
  • MySQL DB Server
  • PHP
  • VSFTP Server
  • Postfix Mail Server
  • Dovecot POP/IMAP Server
  • xferstats, webalizer, spamassassin, squirrelmail
  • sysklogd and rsyslog
The ISO is available as free download at WBITT downloads section.]]>
kamran@wbitt.com (Muhammad Kamran Azeem) Latest Mon, 21 Mar 2011 17:33:06 +0000
WBITT is going commercial! http://www.wbitt.com/news/325-wbitt-is-going-commercial.html http://www.wbitt.com/news/325-wbitt-is-going-commercial.html We (WBITT) are going commercial, with a lot of exciting products to offer! Expect a lot of changes in the website, in the coming days. The "free" content will either move to a free section on the same site, or to my other / non-commercial website (http://techsnail.com). Most of your bookmarks will become invalid. So please keep visiting to keep up with the changes. TechSnail has capability of publishing comments against each article. You may find it very useful.


Update:  The following components of wbitt are moved / are being move to: techsnail.com

* Social articles, Tech Talk, HowTos [ MOVED ]

* cooker.wbitt.com to cooker.techsnail.com [ MOVED ]

* Photo gallery [ being moved ] to techsnail

* Forums [ MOVED ]

* CBTs  [ MOVED ] to techsnail
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kamran@wbitt.com (Muhammad Kamran Azeem) Latest Sun, 12 Dec 2010 11:13:47 +0000
Linux Mint 10: A Perfect 10? http://www.wbitt.com/news/324-linux-mint-10-a-perfect-10.html http://www.wbitt.com/news/324-linux-mint-10-a-perfect-10.html Linux Mint 10: A Perfect 10?

LinuxMagazine has an excellent article on Linux Mint 10. Most of WBITT readers might be wondering, why Linux Mint? Why not RedHat? CentOS? Fedora? etc? Well, I am going to cover all that in an upcominmg article. At the moment, just head straight to the article here on the linuxmagazine website.

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kamran@wbitt.com (Muhammad Kamran Azeem) Latest Fri, 10 Dec 2010 15:49:07 +0000