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Valve Sponsors Work To Greatly Speed-Up Linux OpenGL Game Load Times
by Peter Reutemann 05 May '14

05 May '14

"Valve Software has sponsored some interesting improvements developed by LunarG for the Mesa OpenGL library on Linux for deferred and threaded GLSL shader compilation. What these changes mean for users of the open-source Linux graphics drivers when running their favorite games is that OpenGL games now load a lot faster. As an example, the time from starting Dota 2 until the time actually being within the game is reduced by about 20 seconds on an Intel system. While Direct3D has offered similar functionality for a while, OpenGL has not, which has given it a bad reputation with regard to game load times until all shaders are compiled and cached — fortunately it's now addressed for OpenGL if using the Mesa Linux graphics drivers on a supported game." -- source: http://linux.slashdot.org/story/14/05/05/0443238 Cheers, Peter -- Peter Reutemann, Dept. of Computer Science, University of Waikato, NZ http://www.cms.waikato.ac.nz/~fracpete/ Ph. +64 (7) 858-5174

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OpenBSD 5.5 Released
by Peter Reutemann 05 May '14

05 May '14

"Just as per the schedule, OpenBSD 5.5 was released today, May 1, 2014. The theme of the 5.5 release is Wrap in Time, which represents a significant achievement of changing time_t to int64_t on all platforms, as well as ensuring that all of the 8k+ OpenBSD ports still continue to build and work properly, thus doing all the heavy lifting and paving the way for all other operating systems to make the transition to 64-bit time an easier task down the line. Signed releases and packages and the new signify utility are another big selling point of 5.5, as well as OpenSSH 6.6, which includes lots of DJB crypto like chacha20-poly1305, plus lots of other goodies." -- source: http://bsd.slashdot.org/story/14/05/01/1656209 Cheers, Peter -- Peter Reutemann, Dept. of Computer Science, University of Waikato, NZ http://www.cms.waikato.ac.nz/~fracpete/ Ph. +64 (7) 858-5174

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Nasty Security Flaw In OAuth, OpenID
by Peter Reutemann 03 May '14

03 May '14

"A notable security vulnerability has been discovered which impacts both OAuth and OpenID, which are software packages that provide a secure delegated access to websites. Wang Jing, a Ph.D student at the Nanyang Technological University in Singapore, discovered that the 'Covert Redirect' flaw can masquerade as a login popup based on an affected site's domain. Covert Redirect is based on a well-known exploit parameter. For example, someone clicking on a malicious phishing link will get a popup window in Facebook, asking them to authorize the app. Instead of using a fake domain name that's similar to trick users, the Covert Redirect flaw uses the real site address for authentication. If a user chooses to authorize the login, personal data will be released to the attacker instead of to the legitimate website. Wang did already warn a handful of tech giants about the vulnerability, but they mostly dodged the issue. In all honesty, it is not trivial to fix, and any effective remedies would negatively impact the user experience. Users who wish to avoid any potential loss of data should be careful about clicking links that immediately ask you to log in to Facebook or Google, and be aware of this redirection attack." -- source: http://it.slashdot.org/story/14/05/02/2015227 Cheers, Peter -- Peter Reutemann, Dept. of Computer Science, University of Waikato, NZ http://www.cms.waikato.ac.nz/~fracpete/ Ph. +64 (7) 858-5174

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Canonical (Nearly) Halts Development of Ubuntu For Android
by Peter Reutemann 01 May '14

01 May '14

"In a since-removed bug report on Launchpad, Ubuntu's issue tracker, Canonical's Matthew Paul Thomas stated that Ubuntu for Android is no longer in active development. In a statement, Canonical stated that while the project is not completely dead, Canonical is currently focusing on pushing Ubuntu for Phones. The company is open to working with partners on Ubuntu for Android, but will not proceed with further U4A development unless they can form a partnership with an OEM partner to launch it. The Ubuntu for Android project was first announced in early 2012." -- source: http://mobile.slashdot.org/story/14/05/01/1822254 Cheers, Peter -- Peter Reutemann, Dept. of Computer Science, University of Waikato, NZ http://www.cms.waikato.ac.nz/~fracpete/ Ph. +64 (7) 858-5174

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OpenSSH No Longer Has To Depend On OpenSSL
by Peter Reutemann 30 Apr '14

30 Apr '14

"What has been planned for a long time now, prior to the infamous heartbleed fiasco of OpenSSL (which does not affect SSH at all), is now officially a reality — with the help of some recently adopted crypto from DJ Bernstein, OpenSSH now finally has a compile-time option to no longer depend on OpenSSL. `make OPENSSL=no` has now been introduced for a reduced configuration OpenSSH to be built without OpenSSL, which would leave you with no legacy SSH-1 baggage at all, and on the SSH-2 front with only AES-CTR and chacha20+poly1305 ciphers, ECDH/curve25519 key exchange and Ed25519 public keys." -- source: http://it.slashdot.org/story/14/04/30/1822209 Cheers, Peter -- Peter Reutemann, Dept. of Computer Science, University of Waikato, NZ http://www.cms.waikato.ac.nz/~fracpete/ Ph. +64 (7) 858-5174

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LED and current limiting resistors
by chris 30 Apr '14

30 Apr '14

Following on from Monday nights discussion about LEDs and resistors. https://www.sparkfun.com/tutorials/219 BTW, I acquired a pad heater and a brewing container for my set up from a colleague and its now all wired in - regulating 15 litres of water nicely at the moment.

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Linux Mint 16
by Peter Reutemann 29 Apr '14

29 Apr '14

Hi there Just came across the following blog post of how to install Linux Mint 16 and what to do afterwards to fine-tune it. It also discusses in length all kinds of applications (and their Windows equivalent): http://debianhelp.wordpress.com/2013/11/30/to-do-list-after-installing-linu… Cheers, Peter -- Peter Reutemann, Dept. of Computer Science, University of Waikato, NZ http://www.cms.waikato.ac.nz/~fracpete/ Ph. +64 (7) 858-5174

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Talk Monday
by William Mckee 28 Apr '14

28 Apr '14

Hello wlug For her holidays im taking my sister down to wellington and going to miss the wlug meetup, where I am spose to be doing a talk on godotengine. I feel bad about pulling out so late, but im sure someone else will be able to step in and do a talk. If people are interested I could do my talk another month. Cheers, William

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Man Builds DIY Cellphone Using Raspberry Pi
by Peter Reutemann 26 Apr '14

26 Apr '14

"Photographer and software engineer Dave Hunt has posted an article about his most recent project: a DIY cellphone based on a Raspberry Pi (he calls it a PiPhone). It has a touchscreen dialing interface for making calls, and it's built with off-the-shelf components. The total bill of materials clocks in at about $158: $40 for the rPi, $35 for the 320x240 touchscreen, $15 for the LiPo battery, $48 for the GSM module, and about $20 for miscellaneous other minor parts. Hunt says, '[The GSM/GPRS module] allow us to send standard AT commands to it to make calls, hang up, send texts, data etc. Overall a very clever module. Towards the bottom of the white PCB, you can see the SIM Card, which allows the module to associate with my local GSM network, and it’s using a regular prepaid SIM card, bought in my local phone store for €10. Below the GSM module, you can see the on.off switch and a DC-DC converter, which converts the 3.7volts from the LiPoly battery to 5volts needed by everything else.' He points out that the phone is not terribly practical, but it's a neat project. Hunt has done several others, including turning the Raspberry Pi into a controller for time-lapse photography. He'll be publishing the code he wrote for the PiPhone next week." -- source: http://hardware.slashdot.org/story/14/04/25/2220250 Cheers, Peter -- Peter Reutemann, Dept. of Computer Science, University of Waikato, NZ http://www.cms.waikato.ac.nz/~fracpete/ Ph. +64 (7) 858-5174

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Lumina: PC-BSD's Own Desktop Environment
by Peter Reutemann 24 Apr '14

24 Apr '14

"The PC-BSD project is developing a new open source (BSD license) desktop environment from scratch. The name of the project is Lumina and it will be based around the Qt toolkit. The ultimate goal is to replace KDE as the default desktop of PC-BSD. Lumina aims to be lightweight, stable, fast-running, and FreeDesktop.org/XDG compliant. Most of the Lumina work is being done by PC-BSD's Ken Moore. Even though Lumina is still in its early stages, it can be built and run successfully, and an alpha version can already be obtained from PC-BSD's ports/package repositories." -- source: http://tech.slashdot.org/story/14/04/24/1544216 Cheers, Peter -- Peter Reutemann, Dept. of Computer Science, University of Waikato, NZ http://www.cms.waikato.ac.nz/~fracpete/ Ph. +64 (7) 858-5174

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