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14:09
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Hack a Day
Here’s something we thought we would never see: computing with just pipes, /dev/zero, and /dev/null. As a thought experiment, [Linus] imagined a null byte represented an electron. /dev/zero would have an infinite supply of electrons and /dev/null would make a wonderful positive power supply. With a very short program (named mosfet.c), [Linus] can use Linux pipes [...]
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14:01
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Hack a Day
When it came time to try out some old-school computing [Quinn Dunki] grabbed a 6502 processor and got to work. For those that are unfamiliar, this is the first chip that was both powerful, affordable, and available to the hobby computing market back in the 1970′s. They were used in Apple computers, Commodore 64, and [...]
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19:16
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Packet Storm Security Advisories
Red Hat Security Advisory 2011-1250-01 - Red Hat Enterprise MRG is a next-generation IT infrastructure for enterprise computing. MRG offers increased performance, reliability, interoperability, and faster computing for enterprise customers. MRG Grid provides high-throughput computing and enables enterprises to achieve higher peak computing capacity as well as improved infrastructure utilization by leveraging their existing technology to build high performance grids. MRG Grid provides a job-queueing mechanism, scheduling policy, and a priority scheme, as well as resource monitoring and resource management. Users submit their jobs to MRG Grid, where they are placed into a queue. MRG Grid then chooses when and where to run the jobs based upon a policy, carefully monitors their progress, and ultimately informs the user upon completion.
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19:16
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Packet Storm Security Recent Files
Red Hat Security Advisory 2011-1250-01 - Red Hat Enterprise MRG is a next-generation IT infrastructure for enterprise computing. MRG offers increased performance, reliability, interoperability, and faster computing for enterprise customers. MRG Grid provides high-throughput computing and enables enterprises to achieve higher peak computing capacity as well as improved infrastructure utilization by leveraging their existing technology to build high performance grids. MRG Grid provides a job-queueing mechanism, scheduling policy, and a priority scheme, as well as resource monitoring and resource management. Users submit their jobs to MRG Grid, where they are placed into a queue. MRG Grid then chooses when and where to run the jobs based upon a policy, carefully monitors their progress, and ultimately informs the user upon completion.
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19:16
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Packet Storm Security Misc. Files
Red Hat Security Advisory 2011-1250-01 - Red Hat Enterprise MRG is a next-generation IT infrastructure for enterprise computing. MRG offers increased performance, reliability, interoperability, and faster computing for enterprise customers. MRG Grid provides high-throughput computing and enables enterprises to achieve higher peak computing capacity as well as improved infrastructure utilization by leveraging their existing technology to build high performance grids. MRG Grid provides a job-queueing mechanism, scheduling policy, and a priority scheme, as well as resource monitoring and resource management. Users submit their jobs to MRG Grid, where they are placed into a queue. MRG Grid then chooses when and where to run the jobs based upon a policy, carefully monitors their progress, and ultimately informs the user upon completion.
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4:59
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SecDocs
Authors:
Andrew Becherer Tags:
Kerberos Hadoop Event:
Black Hat USA 2010 Abstract: Distributed computing is a alive and well in 2010. The Hadoop project is carrying the banner for open source distributed computing with its Hadoop Distributed File System and MapReduce engine. Hadoop is in use at many of the world's largest online media companies including Facebook, Fox Interactive Media, LinkedIn, Powerset (now part of Microsoft) and Twitter. Hadoop is entering the enterprise as evidenced by Hadoop World 2009 presentations from Booz Allen Hamilton and JP Morgan Chase. Hadoop has also been elevated to the "cloud" and made available as a service by Amazon and Sun. What the heck is it? Can it be secure? What do I do if I discover it on a network I am testing? When Hadoop development began in 2004 no effort was expended on creating a secure distributed computing environment. In 2009 discussion about Hadoop security reached a boiling point. The developers behind Hadoop decided they needed to get some of that "security" stuff. After a thorough application of kerberos pixie dust Hadoop is now secure, or is it? This talk will describe the types of attacks the Hadoop team attempted to prevent as well as the types of attacks the Hadoop team decided to ignore. We will determine whether Hadoop was made any more secure through the application of copious amounts of kerberos. We will complete the talk with a short discussion of how to approach a Hadoop deployment from the perspective of an penetration tester.
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4:59
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SecDocs
Authors:
Andrew Becherer Tags:
Kerberos Hadoop Event:
Black Hat USA 2010 Abstract: Distributed computing is a alive and well in 2010. The Hadoop project is carrying the banner for open source distributed computing with its Hadoop Distributed File System and MapReduce engine. Hadoop is in use at many of the world's largest online media companies including Facebook, Fox Interactive Media, LinkedIn, Powerset (now part of Microsoft) and Twitter. Hadoop is entering the enterprise as evidenced by Hadoop World 2009 presentations from Booz Allen Hamilton and JP Morgan Chase. Hadoop has also been elevated to the "cloud" and made available as a service by Amazon and Sun. What the heck is it? Can it be secure? What do I do if I discover it on a network I am testing? When Hadoop development began in 2004 no effort was expended on creating a secure distributed computing environment. In 2009 discussion about Hadoop security reached a boiling point. The developers behind Hadoop decided they needed to get some of that "security" stuff. After a thorough application of kerberos pixie dust Hadoop is now secure, or is it? This talk will describe the types of attacks the Hadoop team attempted to prevent as well as the types of attacks the Hadoop team decided to ignore. We will determine whether Hadoop was made any more secure through the application of copious amounts of kerberos. We will complete the talk with a short discussion of how to approach a Hadoop deployment from the perspective of an penetration tester.
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15:01
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Hack a Day
Back in 2004, Apple hobbyist/guru [Michael Mahon] built a cluster of Apple IIe main boards dubbed the “AppleCrate” as an experiment in parallel computing. Now that a few years have passed, he is back with a new iteration of the device, aptly named AppleCrate II. AppleCrate II was built to address some of the design [...]
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7:33
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Hack a Day
[Matthew Arnoff] built an 8-bit computer around the Motorola 6809 processor. He chose this processor because it seems there are a lot of Z80 builds out there and he wanted to try something different. This actually packs quite a punch. He’s clocking the machine at 2 MHz with 512 KB of SRAM memory. Compact Flash [...]
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1:29
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SecDocs
Authors:
Alex Stamos Tags:
cloud computing Event:
Source Conference Boston 2010 Abstract: Cloud computing has become an irresistible force in the IT industry, due to the unbeatable efficiencies of warehouse-scale computing infrastructures and the desire of businesses to reduce their CapEx on IT hardware. The most pressing concerns still holding back companies from moving into a public or semi-private cloud environment are security and compliance, and corporate security groups are under pressure to provide solutions that allow their enterprises to benefit from cloud computing technologies while appropriately managing risk. In this talk, we will review several different cloud computing models and discuss the breakdown of security responsibility in each. We will then deconstruct the currently accepted models of enterprise IT and identify which security controls truly matter for most organizations and which are leftovers from an earlier era of computing. The speaker will then propose several architectures that are implementable in current public cloud providers that provide equivalent or better assurance than traditional IT stacks, and discuss which risks can and should be accepted as part of the new computing paradigm. The talk will be aimed at the system architecture, risk management and CIO levels of organizations, and will be best absorbed by attendees with enterprise architecture experience.
1337day (was: Inj3ct0r, 1337db)
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