Re: Ubuntu issues

Hello, What I do in these situations is to install a new distribution in a subdirectory, and then run the desired stuff with chroot into that subdirectory. In other words, install the new distribution on a virtual machine, and copy its root filesystem. It's a really dirty trick, and sometime

Re: How to image a linux computer

Hello, A somewhat different approach is to copy the entire filesystem into a new computer, and run the old operating system in parallel with the new one. I'm doing this myself, and this approach works surprisingly well: https://billauer.co.il/blog/2018/11/linux-chroot-system-in-parallel/ And

Re: ZFS on Linux (Was: Corrupt file system)

se of the frequent Kernel upgrades) -- Rabin On 23 September 2017 at 12:51, Eli Billauer <mailto:e...@billauer.co.il>> wrote: Thanks, Ori. ZFS sounds interesting indeed. The question that comes to mind is: It's a different creature, with significant emphasis o

Re: Corrupt file system: Replace hard disk or not?

n. Check your dmesg and other logs for any messages containting stuff such as link_down, exception Emask , failed command,SError If nothing like that exist (and you did run smart scan) you should be ok. If any message such that exist, it could be either the drive or the cables. On 9/22/17, Eli B

ZFS on Linux (Was: Corrupt file system)

oL - it tends to alert you to bad RAM or bad power supply rather quickly. On 09/22/2017 12:11 PM, Eli Billauer wrote: Hello all, TL;DR: My hard disk's filesystem was corrupt, but the SMART statistics is perfect. Should I replace the hard disk? ___

Re: Corrupt file system & SMART: Replace hard disk or not?

the data on the hard disk in question is not essential, my advice would be to put the hard disk back to service. Also, configure your system to run fsck frequently on the hard disk (say the shorter of a week and each 5 boots, instead of each 30 boots). --- Omer Zak On Fri, 2017-09-22 at 12:11

Corrupt file system: Replace hard disk or not?

Hello all, TL;DR: My hard disk's filesystem was corrupt, but the SMART statistics is perfect. Should I replace the hard disk? Full version: It seems like one of my hard disks has passed its own premature Yom Kippur verdict. Rebooting my computer this morning, it failed to mount, saying "Gro

HaifaSec Lecture: Rise and Fall of Binaries -- Adir Abraham

Hello all, Our fellow group, HaifaSec, will have a meeting about execution binaries on this *TUESDAY*, December 23rd. The Facebook event (requires no registration for viewing): https://www.facebook.com/events/402607379905506 *** Note that it's NOT on Haifux' regular time slot nor room. ***

[HAIFUX LECTURE] Topics in advanced Python -- Hai Zaar

On Monday, December 1st at 18:30, Haifux will gather to hear a talk by Hai Zaar: Topics in advanced Python Abstract * (Advanced) decorators * Descriptors * Multiple inheritance * The magic of "type" * Metaclasses * Slots vs dictionaries * Generators in depth * Async p

[HAIFUX LECTURE] CiviCRM Meetup -- Xavier Dutoit

On Monday, November 17th at 18:30, Haifux will gather to hear a talk by Xavier Dutoit: CiviCRM Meetup Abstract CiviCRM is a free and open source software constituent relationship management solution. CiviCRM is web-based, internationalized, and designed specifically to meet the needs of

[HAIFUX LECTURE] Bitcoin -- Daniel Brunstein

On Monday, October 27th at 18:30, Haifux will gather to hear a talk by Daniel Brunstein: Bitcoin - What and Why Abstract General Agenda * What is Bitcoin * Wallets (mobile, cloud, cold storage) * Price and Market Capacitance * Worldwide adoption by big corporations and merchant

Haifux is back! (Bitcoin on Monday)

Hi all, Haifux is resuming its activity, now that the holidays are over. Our next meeting, on this Monday, is about Bitcoin. See http://www.haifux.org/lectures/330/ This is also a call for speakers -- the rain has fallen on Haifa, but our lecture pipe i

Haifux: Call for speakers

Hi all, After a short August vacation, Haifux is back. And it seems like it's some kind of tradition that the lecture list is empty at this time of the year. So, any takers? The next slot -- a week from now -- is vacant. Grab it while it's hot! Remember that you don't have to be an expert

[HAIFUX' BIRTHDAY] The Founding Fathers' Session

On Monday, September 1st at 18:30, Haifux will gather for a mini-birthday party + to hear Guy Keren and Orr Dunkelman on The Founding Fathers' Session "Abstract" In 1999, one Guy Keren and one Orr Dunkelman, founded the Haifa Linux Club (also known as Haifux ). In t

Haifux celebrates 15 years this Monday

Hi all, This Monday, Haifux' two Founding Fathers, Guy Keren and Orr Dunkelman, will reflect on the past: Guy will talk about how baby Linux has grown since Haifux was founded, and Orr will go on reading from the Book of Bad Crypto Decisions. This is also a nice opportunity for an all-times

Re: cgi bg

Hi, As far as I recall, the connection closes only when the cgi script's stdout closes, which is usually when the script terminates. If you fork() the process or just go on doing stuff, a file handle attached to stdout remains open, which is probably why the HTTP connection remains open. I

[HAIFUX LECTURE] Cedalion: A Democracy Awaiting the People -- Boaz Rosenan

On Monday, August 4th at 18:30, Haifux will gather to hear a talk by Boaz Rosenan: Cedalion: A Democracy Awaiting the People Abstract Cedalion is a democratic programming language. Most programming languages have a fixed syntax with fixed semantics, defined by either a small committee or b

[HAIFUX LECTURE] The Book of Bad Crypto Decisions -- Orr Dunkelman

On Monday, July 21st at 18:30, Haifux will gather to hear a talk by Orr Dunkelman: The Book of Bad Crypto Decisions (part 1 of 1,000,000) Abstract The borderline between cryptography and computer security (or "How to use cryptography") was, is, and will be, a place for many problems. In t

Haifux, this Monday, on crypto-hell

Hello all, On Monday (July 21st), Haifux will mock those who had good intentions but poor crypto wisdom, and deserved their position in the shameful list of security fails. And also discuss why they got it wrong... The short abstract is at http://www.haifux.org/lectures/328 This is an extra

[HAIFUX LECTURE] Profiling and Tracing -- Nadav Amit

On Monday, July 7th at 18:30, Haifux will gather to hear a talk by Nadav Amit: Profiling and Tracing Abstract In this talk we would cover the basics of performance profiling using the Linux perf tool, and tracing using ftrace. The talk will consist mainly of demos.

Haifux, this Monday, on profiling and tracing

Hello all, On Monday (July 7th), Haifux will grab the measuring band and look into perf tools and ftrace. The short abstract is at http://www.haifux.org/lectures/326 This is an extra announcement, as the lecture was added recently . See you, Eli -- Web: http://www.billauer.co.il

[HAIFUX LECTURE] Efficient Virtual Memory: Hash, Don't Walk -- Idan Yaniv

On Monday, June 23rd at 18:30, Haifux will gather to hear a talk by Idan Yaniv: Efficient Virtual Memory: Hash, Don't Walk Abstract Radix page tables as implemented in the x86-64 micro-architecture incur a penalty of four memory references on each TLB miss. The problem aggravates in virtua

[HAIFUX LECTURE] Web Weakness -- Aviad Carmel

On Monday, June 9th at 18:30, Haifux will gather to hear a talk by Aviad Carmel: Web Weakness Abstract In this talk we will go over a few weaknesses that appear in today's web: * Insecure scripts * SQL Injection * Croos Site Scripting (XSS)

Haifux, this Monday, on Web Weakness

Hello all, On Monday (June 9th), Haifux will once again reinforce our natural paranoia in Aviad Carmel's talk on Web Weakness. The short abstract is at http://www.haifux.org/lectures/324/ This is an extra announcement, as the lecture was added recently See you, Eli -- Web: http://www.b

[HAIFUX LECTURE] Managed Resource Allocation in Linux Device Drivers -- Eli Billauer

On Monday, May 26th at 18:30, Haifux will gather to hear a talk by Eli Billauer: The Right Way: Managed Resource Allocation in Linux Device Drivers Download the slides: http://www.haifux.org/lectures/323/haifux-devres.pdf Abstract Linux device drivers typically call kmalloc

Re: Never call kfree() in a device driver again

Hi, Thanks for the invitation. However I think I'll stick to only Haifux this time. I like it when it's 10 minutes from home. ;) Regards,     Eli On 15/05/14 19:19, Shlomi Fish wrote: Hi Eli, On Thu, May 15, 2014 at 1:25 PM, Eli Billauer <e...@billauer.co.il>

Never call kfree() in a device driver again

Hi all, Ah, I just wanted to tell you that I'll hold a talk about managed resource allocation in the Linux kernel, in Haifux on May 26th. Abstract: http://www.haifux.org/lectures/323 Besides, there's currently no talk scheduled after that. So it's a good opportunity to get a slot as close as

[HAIFUX LECTURE] VSwapper, a guest-agnostic memory swapper for virtual environments -- Nadav Amit

On Monday, April 28th at 18:30, Haifux will gather to hear a talk by Nadav Amit: VSwapper, a guest-agnostic memory swapper for virtual environments Abstract The number of guest virtual machines that can be consolidated on one physical host is typically limited by the memory size, motivatin

Haifux is back on April 28th

Hello all, I hope you all had a nice Pesach, which happened to wipe out a couple of potential Haifux slots... But we'll be back on this Monday, with Nadav Amit talking about VSwapper. Virtualization, memory swapping, see for yourselves: http://www.haifux.org/lectures/322/ And see you there

[HAIFUX LECTURE] Linux Containers and the future cloud (part II) -- Rami Rosen

On Monday, March 31st at 18:30, Haifux will gather to hear a talk by Rami Rosen: Linux Containers and the future cloud (part II) If you missed part I, please refresh your memory on the "Resource Management in Linux" lecture, given in Haifux in May 2013 (see: http://haifux.org/lectures/299/

[HAIFUX LECTURE] Linux Containers and the future cloud -- Rami Rosen

On Monday, March 17th at 18:30, Haifux will gather to hear a talk by Rami Rosen: Linux Containers and the future cloud Abstract This lecture is a sequel to the "Resource Management in Linux" lecture, given in Haifux in May 2013 (see: http://haifux.org/lectures/299/, audio recording availa

[HAIFUX LECTURE] Open Ethernet Initiative -- Matty Kados

On Monday, March 3rd at 18:30, Haifux will gather to hear a talk by Matty Kados: Open Ethernet Initiative - using Linux as the foundation of a networking OS Slides are available at http://haifux.org/lectures/319/linux_networking_OS.pdf Abstract The current landscape of proprietary Ethe

[HAIFUX LECTURE] PacketShader: a GPU-Accelerated Software Router -- Shachar Raindel

On Monday, February 17th at 18:30, Haifux will gather to hear a talk by Shachar Raindel: PacketShader: a GPU-Accelerated Software Router Abstract PacketShader is a high-performance software router framework for general packet processing with Graphics Processing Unit (GPU) acceleration. Pac

[HAIFUX LECTURE] MediaWiki: The software behind Wikipedia -- Amir Elisha Aharoni

On Monday, February 3rd at 18:30, Haifux will gather to hear a talk by Amir Elisha Aharoni: MediaWiki: The software behind Wikipedia Abstract MediaWiki is a Free software package for setting up a wiki site. It was originally developed to support Wikipedia, and now it is used by thousands o

Haifux, this Monday: Wikipedia and MediaWiki

Hello all, On Monday (February 3rd), Haifux will dive into the guts of Wikipedia, and learn how MediaWiki software package can work for you (and how you can work for MediaWiki...). This is what's expected in Amir Elisha Aharoni's talk titled "MediaWiki: The software behind Wikipedia". The ab

[HAIFUX LECTURE] When Cryptography is not the Answer -- Orr Dunkelman

On Monday, January 20th at 18:30, Haifux will gather to hear a talk by Orr Dunkelman: When Cryptography is not the Answer (even when it is) Abstract Since modern cryptography has emerged in the mid 70's, it developed a huge set of solutions to many of the security problems: from secure a

Haifux: Let's talk about Cryptography

Hello all, On Monday (January 20th), Haifux will turn paranoid again with its co-founder Orr Dunkelman, who will talk about "When Cryptography is not the Answer (even when it is)". The abstract is at http://www.haifux.org/lectures/316/ This is an extra announcement, as the lecture was added

Haifux: Call for speakers

Hello all, Haifux' next slots for lectures are currently vacant. So if YOU have a subject you'd like to talk about, whether * you have something interesting to share, or * you'd like to present a project or thesis, and possibly get some new insights, or * you'd like to learn some topic, and w

[HAIFUX LECTURE] Quick and Dirty Bash -- Eli Billauer

On Monday, January 6th at 18:30, Haifux will gather to hear a talk by Eli Billauer: Quick and Dirty Bash Abstract This lecture is a quick and unformal guide to scripts and sophisticated commands in Bash. The aim is to supply the listener with tools to use the command-line interface as

Haifux: Quick and Dirty Bash strikes again!

Hello all, On Monday (January 6th), Haifux will re-run its good old Schlager "Quick and Dirty Bash". Anyone who wants to get a better grip on one-liners in bash and some basic scripting, this is the place and time. The slides are available at http://www.haifux.org/lectures/100-sil This is an ex

[HAIFUX LECTURE] Nested Virtualization: Shadow Turtles -- Orit Wasserman

On Monday, December 23rd at 18:30, Haifux will gather to hear a talk by Orit Wasserman: Nested Virtualization: Shadow Turtles Abstract Nested virtualization -- running multiple hypervisors in virtual machines -- has come a long way in recent years. Since we first published KVM nested virt

[HAIFUX LECTURE] High-Level Introduction to Virtualization's Low-Level -- Ronen Hod

On Monday, November 25th at 18:30, Haifux will gather to hear a talk by Ronen Hod: High-Level Introduction to Virtualization's Low-Level Abstract This presentation unwraps the mystery behind virtualization with strong focus on memory management topics. The objective of this talk is to ins

[HAIFUX LECTURE] The Do-S and Don’t-S of Benchmarking -- Gernot Heiser

On Monday, November 11th at 18:30, Haifux will gather to hear a talk by Gernot Heiser: The Do-S and Don’t-S of Benchmarking Abstract A thorough and convincing evaluation is a core part of every systems paper, and generally involves some form of benchmarking. In my experience as a reviewer

[HAIFUX LECTURE] OSv, a new open-source operating system for virtual machines -- Nadav Har'El

On Monday, October 28th at 18:30, Haifux will gather to hear a talk by Nadav Har'El: OSv, a new open-source operating system for virtual machines Abstract These days, most applications running on virtual machines in the cloud run on top of Linux. We all love Linux, but as an all-encompassi

[HAIFUX LECTURE] Ginseng: market-driven memory allocation -- Orna Agmon Ben-Yehuda

On Monday, October 14th at 18:30, Haifux will gather to hear a talk by Orna Agmon Ben-Yehuda: Ginseng: market-driven memory allocation Abstract Physical memory is the scarcest resource in today’s cloud computing platforms. Cloud providers would like to maximize their clients’ satisfaction

[HAIFUX LECTURE] Software Defined Networking -- Yonatan Zilpa

On Monday, September 30th at 19:30, HaifaSec and Haifux will gather to hear a talk by Yonatan Zilpa: Software Defined Networking IMPORTANT: The meeting starts ONE HOUR LATER than usual, and is in Taub 5 (room has changed as well). Abstract In this talk we will give a brief review on SDN

[HAIFUX LECTURE] Software Licensing for Dummies -- Jonathan J. Klinger

On Monday, September 16th at 18:30, Haifux will gather to hear a talk by Jonathan J. Klinger: Software Licensing for Dummies / Software Developers Abstract In my lecture, we shall discuss Licensing basics, including (i) basis to copyright law; (ii) what is software licensing; (iii) how doe

[HAIFUX LECTURE] You & The Biometric Database -- Jonathan J. Klinger

On Monday, September 2nd at 18:30, Haifux will gather to hear a talk by Jonathan J. Klinger: You & The Biometric Database -- NOTE: Due to the somewhat volatile situation in the region, please check the "Next Meeting" section on http://haifux.org/ just before leaving ho

[HAIFUX LECTURE] Command-line utilities: Tips and tricks (part II) -- Eli Billauer

On Monday, August 19th at 18:30, Haifux will gather to hear a talk by Eli Billauer: Command-line utilities: Tips and tricks (part II) Command-line utilities is the real power of a Linux computer, and yet there's always a few useful utilities that even an experienced Linux user do

[HAIFUX LECTURE] All I really need to know about bioinformatics -- Boaz Goldstein

is needed. = We meet in Taub building, room 6. For instructions see: http://www.haifux.org/where.html Attendance is free, and you are all invited! == Future lectures: 19/08/13 Command-line utilities: Tips and tricks (par

[HAIFUX LECTURE] Replicate and Bundle (RnB) -- Shachar Raindel

On Monday, July 22nd at 18:30, Haifux will gather to hear a talk by Shachar Raindel: Replicate and Bundle (RnB) -- A Mechanism for Relieving Bottlenecks in Data Centers Abstract This work addresses the scalability and efficiency of RAM-based storage systems wherein multiple objects must

[HAIFUX LECTURE] DNS Cache-Poisoning: New Attacks and Defenses -- Haya Shulman

On Monday, July 8th at 18:30, Haifux will gather to hear a talk by Haya Shulman: DNS Cache-Poisoning: New Attacks and Defenses Abstract The Domain Name System (DNS) is key to the availability and correct operation of the Internet. Due to its significance it is also a lucrative target for

[HAIFUX/LYX MEETING] The Technion LyX Conspiracy -- Ronen Abravanel and Daniel Vainsencher

Dear fellow Haifux LyXers, A LyX meeting will take place on WEDNESDAY, June 26th at 16:00 to 20:00, in room 815 of the EE Meyer building. If you're like us, you love LyX, and wish you could do everything from it: - Write your papers with the conference style file - Collaborate with LaTeX-only

[HAIFUX LECTURE] Bare-Metal Performance for I/O Virtualization -- Abel Gordon

On Monday, June 17th at 18:30, Haifux will gather to hear a talk by Abel Gordon: Bare-Metal Performance for I/O Virtualization Abstract Hypervisors implement useful features such as live migration and software-defined networking by interposing on their guest virtual machines’ I/O activit

[HAIFUX LECTURE] Massivizing OpenTTD: Distributed Computing Challenges and Quality Time -- Alexandru Iosup

On Monday, June 3rd at 18:30, Haifux will gather to hear a talk by Alexandru Iosup: Massivizing OpenTTD: Distributed Computing Challenges and Quality Time Abstract Hundreds of online games entertain over 250,000,000 online gamers in a maturing global market of over 30 billion Euros. A popu

Name lookup failure on hamakor.org.il.

Hello, The DNS lookup of hamakor.org.il is failing consistently. Other domains may also suffer from name lookup problems if they're covered by ns.hamakor.org.il and friends. Whoever is responsible may want to have a look at this. BTW, this has NO effect on haifux.org. Regards,     Eli -- We

[HAIFUX LECTURE] Resource management in Linux -- Rami Rosen

On Monday, May 27th at 18:30, Haifux will gather to hear a talk by Rami Rosen: Resource management in Linux Abstract * Resource management in Linux * Kernel Namespaces implementation (kernel 3.8) * Kernel Namespaces as an infrastructure for process virtualizaton - Network namespaces and p

[HAIFUX LECTURE] Android Architecture -- Leon Romanovsky

On Monday, May 13th at 18:30, Haifux will gather to hear a talk by Leon Romanovsky: Android Architecture Abstract This lecture will help to beginners to understand android architecture from the Linux perspective view. We will talk about the differences between Linux kernel and Android ker

Haifux: Android lecture this Monday

Hi all, I just wanted to bring your attention that Haifux' next lecture on Monday (May 13th) is about Android (by Leon Romanovsky), unlike previous announcement. The abstract hasn't been published yet, but the slides are already available: http://haifux.org/lectures/298/ The formal reminder fo

[HAIFUX LECTURE] Unicode Issues in Perl -- Meir Guttman

, and you are all invited! == Future lectures: 13/05/13 Command-line utilities: Tips and tricks (part II): Eli Billauer 27/05/13 THIS SLOT CAN BE YOURS! 10/06/13 Resource Management in Linux: Rami Rosen 24/06/13 DNS security

Haifux is back on the 22nd

Hi all, Since we had a long break (holidays etc.), I thought I should post an early reminder. We'll meet again on this Monday, April 22nd, at 18:30 to hear Meir Guttman talk about Unicode issues in Perl. For details: http://haifux.org/lectures/297 This is not instead of the regular announcemen

[HAIFUX LECTURE] Kernel Cybernetics -- Jonathan Ben-Avraham

On Monday, March 18th at 18:30, Haifux will gather to hear a talk by Jonathan Ben-Avraham: Kernel Cybernetics: How to get useful information from the kernel archives Abstract Beginning kernel programmers spend a large portion of their time looking for information regarding specific kerne

[HAIFUX LECTURE] Wireless Hacking -- Guy Edri

On Monday, March 4th at 18:30, Haifux will gather to hear a talk by Guy Edri: Wireless Hacking *** PREPARE YOUR LAPTOP TODAY FOR THE TALK! ** Abstract The talk includes a workshop, in which the speaker's AP will be hacked by the audiance. To participate, bring a laptop

[HAIFUX LECTURE] Developing modern web applications using Flask and Backbone.js -- Yaniv Aknin and Yaniv Ben-Zaken

On Monday, February 18th at 18:30, Haifux will gather to hear a talk by Yaniv Aknin and Yaniv Ben-Zaken: Developing modern web applications using Flask and Backbone.js Abstract We've come a long way since NCSA Mosaic and httpd. Web developers' arsenal today encompasses a very broad range o

[HAIFUX LECTURE] Flash Friendly File System (F2FS) - Leon Romanovsky

On Monday, February 11th at 18:30, Haifux will gather to hear a talk by Leon Romanovsky: Flash Friendly File System (F2FS) Abstract The "flash-friendly file system (F2FS)" is a new file system for Linux recently announced by engineers from Samsung. Unlike jffs2 and logfs, f2fs is not targ

Re: [Haifux] Recording the Bitcoin lecture

nd,I can record audio On Fri, Feb 1, 2013 at 1:07 PM, Eli Billauer <e...@billauer.co.il> wrote: Hi all, Is there anyone willing to record the Bitcoins lecture this Monday? http://haifux.org/lectures/292/ (Ah, and there are slides alread

[HAIFUX LECTURE] Bitcoin by Meni Rosenfeld

On Monday, February 4th at 18:30, Haifux will gather to hear a talk by Meni Rosenfeld: Bitcoin Abstract Bitcoin is the world's first decentralized digital currency. Powered by a peer-to-peer network of computers running free software, it was created as an alternative to the existing monet

Recording the Bitcoin lecture

Hi all, Is there anyone willing to record the Bitcoins lecture this Monday? http://haifux.org/lectures/292/ (Ah, and there are slides already...) Video is preferred, by audio is fine as well. Who's bringing the stuff?     Eli -- Web: http://www.billauer.co.il ___

[HAIFUX LECTURE] Command-line utilities: Tips and tricks -- Eli Billauer

On Monday, January 21st at 18:30, Haifux will gather to hear a talk by Eli Billauer: Command-line utilities: Tips and tricks Abstract Command-line utilities is the real power of a Linux computer, and yet there's always a few useful utilities that even an experienced Linux user do

[HAIFUX LECTURE] Introduction to Flash Memory -- Leon Romanovsky

On Monday, January 7th at 18:30, Haifux will gather to hear a talk by Leon Romanovsky: Introduction to Flash Memory Abstract In this lecture we will discuss flash memory. We will go through history, different types and physics. We will talk about current limitations of flash. This lectur

[HAIFUX LECTURE] What more can industry learn from open source? -- Yael Vaya-Talmor

On Monday, December 24th at 18:30, Haifux will gather to hear a talk by Yael Vaya-Talmor: What more can industry learn from open source? *** The subject and abstract may change slightly, please check our site *** Abstract We suggest open source as an alternative way for the production of

[HAIFUX LECTURE] The Device Tree: Plug and play for Embedded Linux -- Eli Billauer

On Monday, December 3rd at 18:30, Haifux will gather to hear a talk by Eli Billauer: The Device Tree: Plug and play for Embedded Linux Abstract On embedded systems, the Linux kernel doesn't have the BIOS to tell it what the hardware is like. On the other hand, the traditional solutio

Haifux reschedule: Talk about the device tree on Monday

Hi all, Due to a last-minute reschedule in Haifux' lecture line-up, this Monday's talk will be about the flattened device tree, which is the embedded Linux' substitute for the BIOS telling it about the hardware it runs on. More details in our site: http://haifux.org/ The regular announcemen

[HAIFUX LECTURE] Israeli Digital Rights NPO -- Zvi Devir

On Monday, October 29th at 18:30, Haifux will gather to hear a talk by Zvi Devir: Israeli Digital Rights NPO Abstract The Digital Rights Movement stands between advanced technology and people rights (in the broad sense). Technological advance provides us with new products and new means of

[HAIFUX LECTURE] Adding Colors to Kademlia -- Gil Einziger

On Monday, October 15th at 18:30, Haifux will gather to hear a talk by Gil Einziger: Adding Colors to Kademlia Abstract Kademlia is considered to be one of the most effective key based routing protocols. It is nowadays implemented in many file sharing peer-to-peer networks such as BitTorr

[HAIFUX LECTURE] The Resource-as-a-Service (RaaS) Cloud -- Orna Agmon Ben-Yehuda

On Monday, September 3rd at 18:30, Haifux will gather to hear a talk by Orna Agmon Ben-Yehuda: The Resource-as-a-Service (RaaS) Cloud Abstract Over the next few years, a new model of buying and selling cloud computing resources will evolve. Instead of providers exclusively selling server-

[HAIFUX LECTURE] Patentability of software related inventions by Doron Sierdazki

On Monday, August 6th at 18:30, Haifux will gather to hear a talk by Doron Sierdazki: Where did Bilski take us? Patentability of software related inventions Abstract In the last two decades patenting software relations invention in the US was a flourishing business. Recent ruling by Federa

[HAIFUX LECTURE] Git for solo projects too by Eli Billauer

On Monday, July 23rd at 18:30, Haifux will gather to hear a talk by Eli Billauer: Git for solo projects too Abstract Git is well-known as the tool for collaborating in free software projects, and the Linux kernel in particular. What seems to be less known, is how useful it is even in a

[HAIFUX LECTURE] Hebrew search - not a trivial task by Itamar Syn-Hershko

: Eli Billauer 06/08/12 Where did Bilski take us? Patentability of software related inventions: Doron Sierdazki == We are always interested in hearing your talks and ideas. If you wish to give a talk, hold a discussion, or

[HAIFUX LECTURE] ZeroVM: Lightweight containers based on Google Native Client by Camuel Gilyadov

! == Future lectures: 09/07/12 Hebrew search---not a trivial task (Hebmorph): Itamar Syn-Hershko 23/07/12 Git for solo projects too: Eli Billauer 06/08/12 Where did Bilski take us? Patentability of software related inventions: Doron Sierdazki

Re: Memory swap when there's apparently plenty of free RAM

t ever use swap under normal conditions. Eli On 06/18/2012 05:21 PM, Nadav Har'El wrote: On Mon, Jun 18, 2012, Eli Billauer wrote about "Memory swap when there's apparently plenty of free RAM": When I opened Google Chrome last (I don't use it a lot), the computer

Re: Memory swap when there's apparently plenty of free RAM

n Mon, Jun 18, 2012 at 03:07:34PM +0300, Eli Billauer wrote: Any idea what happened? In particular, why triggered the swap for no apparent reason? Just a guess, but it might sub-optimal VM swapiness settings. See Documentation/sysctl/vm.txt: swappiness This control is used to define h

Memory swap when there's apparently plenty of free RAM

Hi all, I'm running FC12 with a 2.6.35.4 vanilla kernel on a x86_64. When I opened Google Chrome last (I don't use it a lot), the computer froze completely for a minute, no mouse movement, no response to CTRL-Alt-F2, and the clock didn't change. The hard disk was highly active. After that min

[HAIFUX LECTURE] "Disk" storage media by Guy Keren

free, and you are all invited! == Future lectures: 25/06/12 Git for solo projects too: Eli Billauer 09/07/12 Hebmorph: Itamar Syn-Hershko == We are always interested in hearing your talks and ideas. If yo

Re: Using git on / for configuration files

g the none-/etc directories as git submodules? Would that help? (I'm still 100 pages from the end of Pro Git and just read about submodules last night). On Jun 9, 2012 2:13 AM, "Oron Peled" <mailto:o...@actcom.co.il>> wrote: On Friday, 8 בJune 2012 12:24:55 Eli Billaue

Re: Using git on / for configuration files

ther, hard links are not allowed for directories on a system that wants to stay sane. So this doesn't help much. Thanks anyhow. :) On 06/09/2012 09:33 AM, Tomer Cohen wrote: On Fri, Jun 8, 2012 at 12:24 PM, Eli Billauer <mailto:e...@billauer.co.il>> wrote: I tried to syml

Re: Using git on / for configuration files

02:03 PM, Oleg Goldshmidt wrote: Eli Billauer writes: My what down the drain? Eh, "man alternatives"? "ls -l /etc/alternatives"? I think it gets installed with chkconfig... Whatever, it's a humongous collection of symlinks to default version of al

Re: Using git on / for configuration files

ository is supposed to be a long term thing, I would avoid this, even if I found a way to trick git into following symlinks. Even specific symlinks (because /etc has a few of its own).    Eli On 06/08/2012 08:06 AM, Oleg Goldshmidt wrote: Eli Billauer writes: What I liked less, i

Re: Using git on / for configuration files

On 06/06/2012 06:39 PM, Ohad Levy wrote: [...] So what do you say? A bad idea? A brilliant idea? Everyone's doing it and nobody told me? etckeeper Thanks for that one (goes to Oron too). On Fedora 14 (running on a guinea pig virtual machine) it was just yum install etcke

Re: Using git on / for configuration files

There seems to be a misunderstanding about git: If the repository is on /, it doesn't mean all files are tracked. On the contrary, they are handpicked with "git add". On the other hand, if I put the repository under /etc, I'm not so sure I'll be able to track something under, say, /var. File o

Using git on / for configuration files

Hi all, I'd just like to get your input before I do something stupid. The idea, anyhow, is to create a git repository on my system's root directory, and add many of the system's configuration files (e.g. some of /etc/) for tracking. This sounds a bit bizarre even to me, but my question is: D

[HAIFUX LECTURE] InfiniBand, RoCE and RDMA Verbs - Empowering Supercomputing and Data Center Interconnects by Dotan Barak

On Monday, May 14th at 18:30, Haifux will gather to hear a talk by Dotan Barak: InfiniBand, RoCE and RDMA Verbs - Empowering Supercomputing and Data Center Interconnects Abstract This lecture aims to provide a brief introduction to the InfiniBand architecture and programming using RDMA ve

[HAIFUX LECTURE] Scientific Python by Uri Barkan

On Monday, May 7th at 18:30, Haifux will gather to hear a talk by Uri Barkan Scientific Python Abstract (For a longer description in Hebrew, see http://haifux.org/lectures/277/ ) In scientific programming, software is used for the purpose of research of processes. This method is used to

[HAIFUX LECTURE] Modern Web Development in Perl by Gabor Szabo

On Monday, April 23rd at 18:30, Haifux will gather to hear a talk by Gabor Szabo: Modern Web Development in Perl Abstract Back in the early years of the dynamic web, Perl was the de-facto choice of language. It was so ubique that people associated it with CGI. For that, even today, Perl

[HAIFUX LECTURE] Software tools for reconfigurable architectures by Victor Kaplansky

On Monday, March 19th at 18:30, Haifux will gather to hear a talk by Victor Kaplansky: Software tools for reconfigurable architectures Abstract Reconfigurable computing allows a lower power consumption to achieve higher performance than software, while maintaining a higher level of flexibi

Hamakor.org.il: site and mail server are down

Hello, I'm sorry to bug the entire list with this, but since Hamakor's board's mailing list is run on the same server, I have no other way to notify whoever needs to take action. A bold hint regarding the nature of the problem is given when logging in to the server with SSH. "df -h" leaves

[HAIFUX LECTURE] Making Hebrew Slides with LaTeX and Beamer by Gai Shaked

On Monday, February 20th at 18:30, Haifux will gather to hear a talk by Gai Shaked: Making Hebrew Slides with LaTeX and Beamer Abstract LaTeX is a high-quality typesetting system; BEAMER is is a LaTeX class for creating presentations; Hebrew is an esoteric west Semitic language we happen t

Re: Cat on (RAM) steroids

Well, the real reason is that the buffers in the kernel are allocated as DMA memory. So it's not just a matter of getting hold of a lot of memory, but a lot of memory which is continuous in its physical space. Or more precisely, a lot of continuous buffers which are fairly large. One could, of

[HAIFUX LECTURE] C++ AMP: Microsoft approach for Heterogeneous Computing by Avi Mendelson

On Monday, February 6th at 18:30, Haifux will gather to hear a talk by Avi Mendelson: C++ AMP: Microsoft approach for Heterogeneous Computing Abstract C++ AMP (Accelerated Massive Parallelism) is a native programming model that contains elements that span the C++ programming language and it

Re: Cat on (RAM) steroids

that command prompt returns after a second or so, which is the time it took for hexdump to consume the data. So I suppose we have a winner. Thanks again. Eli Baruch Even wrote: On Sat, Feb 4, 2012 at 4:27 PM, Eli Billauer <mailto:e...@billauer.co.il>> wrote: Hi all,

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