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aufs (Another Unionfs) filesystem user discussion ()

1 save http://comments.gmane.org/gmane.linux.file-systems.aufs.user/3298

Current opportunities | www.thoughtworks.com

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Easy Access - Dynamic device management with Udev, HAL, and D-Bus - Linux Magazi...

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Dynamic device management with Udev, HAL, and D-Bus
Easy Access

Udev, HAL, and D-Bus provide automated hardware configuration, even if you plug in on the fly. We'll help you easily access new devices.

Hotkeys/Architecture - Ubuntu Wiki

4 saves https://wiki.edubuntu.org/Hotkeys/Architecture

Hotkeys/Architecture

Architecture (Ubuntu 9.10)

hotkeys-target.png

Here is the bird's-eye view of how key mapping works: The kernel recognizes the key and establishes a raw scancode and maps it to a kernel keycode (e.g. e06d -> 120). Xorg translates the kernel keycode (which is Linux specific) to its own list of X keysyms (e.g. 136 -> XF86AudioMedia). Finally, the window manager maps the keysym to a desired window manager shortcut action or an application command (e.g. XF86AudioMedia -> launch rhythmbox).

Ephemeral Diffie Hellman support – NOT ! « Unleash Networks Blog

1 save http://www.unleashnetworks.com/blog/?p=28

You may ask, if DHE is so cool, why doesnt everyone simply use it ? Why do almost all ecommerce sites amazon, ebay, etc – use lesser ciphers ? I just checked that google adwords prefers RSA-RC4-128-SHA with my IE and Firefox.

Ssl_handshake_with_two_way_authentication_with_certificates.png (2081×1853)

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How browsers secure https sites

An overview of the SSL handshake

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The SSL handshake enables the SSL client and SSL server to establish the secret keys with which they communicate.

This section provides a summary of the steps that enable the SSL client and SSL server to communicate with each other:

Agree on the version of the SSL protocol to use.
Select cryptographic algorithms.
Authenticate each other by exchanging and validating digital certificates.
Use asymmetric encryption techniques to generate a shared secret key, which avoids the key distribution problem. SSL then uses the shared key for the symmetric encryption of messages, which is faster than asymmetric encryption.

delicious blog » What’s Next for Delicious?

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Nexus One DIY Docks - xda-developers

1 save http://forum.xda-developers.com/showthread.php?t=628094

There's a lot of discussion about docks for the Nexus One. Since budget is a big issue for a lot of us, why don't we resort to DIY solutions?

No double standards: supporting Google's push for WebM — Free Software Foundatio...

14 saves http://www.fsf.org/news/supporting-webm

Today, we're also urging Web site operators to distribute videos in the WebM format, and abandon H.264

tar vs cpio

20 saves http://rightsock.com/~kjw/Ramblings/tar_v_cpio.html

How is this faster? Why not use NFS? Why not use rsync? NFS is inherently very slow, but more importantly, the use of any single tool is inherently single threaded. rsync reads in the source tree and writes to the destination tree one file at a time. If you have a multi processor machine (at the time I was using 16cpu's per machine), parallel writing became very important. I speeded the copy of a 8GB tree down to 30 minutes; that's 4.6MB/sec! Sure it sounds slow since a 100Mbit network can easily do 5-10MB/sec, but it's the inode creation time that makes it slow; there were easily 500,000 files in this tree. So if inode creation is the bottleneck, then I needed to parallelize that operation. By comparison, copying the files in a single-threaded manner would take 4 hours. That's 8x faster!

Stuxnet - Wikipedia, the free encyclopedia

110 saves http://en.wikipedia.org/wiki/Stuxnet

The attack requires in-depth knowledge of industrial processes and an interest in attacking industrial infrastructure.[2][6] These capabilities would have required a team of people to program, as well as check that the malware would not crash the PLCs. Eric Byres, who has years of experience maintaining and troubleshooting Siemens systems, told Wired that writing the code would have taken many man-months, if not years.[25]

Taksiyle.com | Buradan taksi ne kadar tutar? | İstanbul taksi ücreti hesaplama

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fetch.php (application/pdf Object)

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Asynchronous vs. Threaded Python

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Asynchronous vs. Threaded Python

TCP Overview

1 save http://pre.visualland.net/protocol.overview.php?p=TCP

Overview. TCP is the backbone of Internet and has ben evolving since early 1980s. Many Internet applications are built from TCP. However, for beginers, the core of TCP, -- congestion avoidance, is abstract and complicated. We are trying to make learning TCP easier by animating simulation results. ns2 (network simulation 2) is a simulation platform used by many scientific research projects.
This set of 5 TCP simulations use ns2 to simulate TCP behaviors, and visualizes simulation results with animators (topology, packets, sliding window parameters, sequence chart, cwnd chart.) In addition, a video is provided for each simulation. Videos are led by human teachers to analyze theories with animated data, state, and charts.
These simulations and videos are free to use. If you find them useful, you are welcome to add these simulation/video links to your web sites or blogs.

Mindblowing Python GIL

3 saves http://blip.tv/file/2232410

David Beazley: mind-blowing presentation about how the Python GIL actually works and why it's even worse than most people even imagine.

Slides: http://www.dabeaz.com/python/GIL.pdf

The opening act: Asynchronous vs. Threaded Python http://blip.tv/file/2232349

PyCon 2010: Teaching compilers with python (#87) - Python Miro Community - All P...

2 saves http://python.mirocommunity.org/video/1632/pycon-2010-teaching-compilers-

In the University of Applied Sciences ARC, compilers are taught in a relatively short amount of time. Focus is put on the main conceptual ideas, letting aside many technical details. Still, the students are expected to write a full compiler within a few weeks' time.

After trying the traditional C/Lex/Yacc based approach, and a more education-oriented Java/Jaccie solution, we settled on Python and PLY, plus a few enhancements (syntax tree graphical representation, decorator to achieve better code separation).

PyCon 2010: The Mighty Dictionary (#55) - Python Miro Community - All Python Vid...

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PyCon 2010: The Mighty Dictionary (#55)

PyCon 2010:Plenary: Sautrday Evening Lightning Talks

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PyCon 2010:Plenary: Sautrday Evening Lightning Talks

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