September 2013 - luv-main

ALSA capture not working
by Neale Banks 28 Sep '13

28 Sep '13

Hi, This is on a fresh install of Debian 7.1 XFCE AMD64 on an Optiplex 780. It's multiarch - i386 added so Skype i386 can be installed. Skype appears happy, but calls to the Echo / Sound Test Service don't return my audio. The simplest manisfestation of this problem is that ALSA capture doesn't capture anything, but silence. I'm using: arecord -d 5 --vumeter=mono /tmp/foo.wav The meter doesn't move, and playing back with: aplay --vumeter=mono /tmp/foo produces silence (but playing another .wav file is OK). In alsamixer, I've maximised all Capture settings, and have set the input sources (both of them) to "Front Mic" (this _should_ be the correct input - the Mic is connected at the front and in the playback devices cranking up "Front Mic" results in the Mic audio going to the headset (i.e. sidetone)). According to lspci, the audio device is a: "Intel Corporation 82801JD/DO (ICH10 Family) HD Audio Controller (rev 02)" Curiously, we had the same problem with a completely different machine earlier this year - all OK but Microphone Capture not working (Debian installation report at: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=701171 We never "solved" that - the workaround was to use a "USB" headset/microphone (i.e. USB Sound "card"). Any suggestions? Thanks, Neale.

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wildcard expansion
by Russell Coker 27 Sep '13

27 Sep '13

ls -l *.mkv *.avi *.mp4 The above command will give me errors if I happen to have no .avi files or no .mkv files. How can I write a command to give a list of all video files and not give an error if some don't exist? Preferably in bash, but I'm willing to try another shell if necessary. As an aside I'm not actually after running ls, the below is what I'm really trying to do: for n in *.mkv *.avi *.mp4 ; do -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/

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Fwd: [lca-announce] lca2014 keynote - Jon Oxer - ArduSat
by Bianca Gibson 27 Sep '13

27 Sep '13

---------- Forwarded message ---------- From: "linux.conf.au Announcements" <lca-announce(a)lists.linux.org.au> Date: 27 Sep 2013 16:37 Subject: [lca-announce] lca2014 keynote - Jon Oxer - ArduSat To: <lca-announce(a)lists.linux.org.au>, <chat(a)lists.lca2013.linux.org.au>, " plug(a)plug.org.au" <plug(a)plug.org.au> Cc: Public Release. For immediate Release. The linux.conf.au 2014 team are excited to announce our first keynote speaker - Jonathan Oxer. Jon has agreed to come and present a keynote discussing ArduSat. Jon has been hacking on both hardware and software since he was a little tacker. Most recently he's been focusing more on the Open Hardware side, co-founding Freetronics as a direct result of organising the first Arduino Miniconf at LCA2010. His books include "Ubuntu Hacks" and "Practical Arduino". Jon has been variously referred to as Australia's geekiest man and as a cyborg-in-progress. As part of his “SuperHouse” home automation series, Jon has taken keyless entry to an all new level by embedding an RFID tag into his arm using a vet's chipping tool. Recently he has been working on ArduSat, a satellite that aims to give hobbyists, students and space enthusiasts an opportunity to design and run their own experiments in space. By choosing a standardised platform based on the hugely popular Arduino hardware design, ArduSat allows anyone to develop and prototype experiments at home using readily accessible parts and all based on a simple open source software environment. Jon will be presenting an overview of the latest developments to the ArduSat project as part of his keynote presentation during linux.conf.au2014 in Perth, Western Australia. linux.conf.au is an annual open source conference organised by Linux Australia. In 2014 the conference will be held in Perth, Western Australia from the 6th January to the 10th. http://linux.conf.au #lca2014 -- Kind Regards Luke Woollard luke.john(a)osmahi.com _______________________________________________ lca-announce mailing list lca-announce(a)lists.linux.org.au http://lists.linux.org.au/listinfo/lca-announce

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Re: LMDE update, now have boot error
by Jay Amorin 27 Sep '13

27 Sep '13

It would be better if you have the livecd or install cd, but you can also use other livecd as well e.g. knoppix. root (hdx,y) setup (hdx) x is the mbr usually points to hd0. y is the partition where your grub stage 1 is, just press the tab key to auto-complete. Let us know if it works. Cheers, Jay On Fri, Sep 27, 2013 at 9:56 AM, Terry Duell <tduell(a)iinet.net.au> wrote: > Hello Jay, > > > On Fri, 27 Sep 2013 11:47:16 +1000, Jay Amorin <jeeyessos(a)gmail.com> > wrote: > > try to re-install grub onto your mbr. >> >> boot using your distro livecd or rescue mode. some distro would require >> that you chroot before running grub. then run root (hdx,x) and setup >> (hdx). >> >> > I don't have an LMDE 64 bit livecd. > If I can get a livecd, I assume it will have to have the same version of > grub. My laptop announces grub version 1.99-27+deb7u1. > Also, how can I check what the x in hdx should be? I only have the one > distro installed, and probably used the default installation, so hd1 is > probably right? > > > Cheers, > -- > Regards, > Terry Duell >

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Fwd: Re: LMDE update, now have boot error
by Terry Duell 27 Sep '13

27 Sep '13

Sorry, should have sent this reply to luv ------- Forwarded message ------- Hello Jay, On Fri, 27 Sep 2013 11:47:16 +1000, Jay Amorin <jeeyessos(a)gmail.com> wrote: > try to re-install grub onto your mbr. > > boot using your distro livecd or rescue mode. some distro would require > that you chroot before running grub. then run root (hdx,x) and setup > (hdx). > I don't have an LMDE 64 bit livecd. If I can get a livecd, I assume it will have to have the same version of grub. My laptop announces grub version 1.99-27+deb7u1. Also, how can I check what the x in hdx should be? I only have the one distro installed, and probably used the default installation, so hd1 is probably right? Cheers, -- Regards, Terry Duell

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LMDE update, now have boot error
by Terry Duell 27 Sep '13

27 Sep '13

Hello All, My LMDE laptop just went through a huge update, and now can't boot. Every grub boot option returns "error: no such partition". There are quite a lot of stories on this, and many suggest using grub rescue mode, then use "ls" to see what partitions are seen. This doesn't work, always returning this same error message. I guess I will have to boot from a rescue disk, but not sure what I then need to do. Any help appreciated. Cheers, -- Regards, Terry Duell

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Urgent: Please make a submission on software patents by 4 October
by Ben Sturmfels 27 Sep '13

27 Sep '13

Hi fellow LUVers, The Australian Government is requesting submissions for a Review of the Innovation Patent System. Could you make a written submission by 4 October? The review has already show a genuine interest in our plight, so simply making a brief comment will help convince them to take the next step. I've prepared the attached no-nonsense guide to help you: http://www.sturm.com.au/resources/guide-innovation-patents.pdf Regards, Ben

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Path MTU discovery and bridged ADSL PPPoE
by Toby Corkindale 26 Sep '13

26 Sep '13

Hi, This is perhaps more of a networking question than Linux, but all the devices involved are running Linux.. I have what is probably a common home setup -- an ADSL modem operating in "pure bridge" mode, connected by ethernet to a Linux server running pppd with the PPPoE plugin. Same linux server is providing DNS, DHCP and NAT for other clients connected via wireless and ethernet. This setup was running fine for many years with a Billion 7300RA ADSL modem. I just switched it over to a newer Billion 7800NL modem in the hope it'd provide better sync speeds on my hopeless phone line. (It does, with some SNR tweaking) However for some reason path MTU discovery has completely broken when using the newer modem. The primary Linux box is fine, but all clients (whether wired, wireless *or even virtual*) fail to work unless I manually set their interfaces to an mtu of 1492. I'm pretty confused by this -- pppd was setting itself up with a 1492 mtu even on the old modem, and that managed to propagate out just fine. The only thing that changed was the modem, but that shouldn't affect this issue. I'm bamboozled. Could anyone advise me on what could possibly be done to figure out what has happened? Or better, a way to fix it? Investigative notes: 1) New router was switched back to standalone mode (where it does pppoe, dhcp, nat etc) and in this mode, all clients worked fine. So the ADSL link and ethernet ports seem OK. 2) Old router was booted up to verify settings and that stuff works OK with it. Settings for ADSL line were similar, and stuff does work with it. (I say settings were "similar" because the two modems have different interfaces, and the 7800NL has some extra options not present on the 7300RA, but I don't think they're relevant to this issue) Thanks in advance, Toby -- Turning and turning in the widening gyre The falcon cannot hear the falconer Things fall apart; the center cannot hold Mere anarchy is loosed upon the world

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selinux stole my bank details (and my pony)
by Robin Humble 26 Sep '13

26 Sep '13

...it didn't really, but... is anyone still a selinux fanboi after the recent NSA revelations? if so then (Russell, I'm looking at you :-) why are you still confident selinux is a good thing and not just something designed to be so complex or so subtly buggy that the NSA can hide backdoors in it? there's already been one CVE where only those running selinux are vulnerable https://bugzilla.redhat.com/show_bug.cgi?id=517830 which at the time made me very happy I'd turned selinux off. Android 4.3 has started using selinux. do we really trust android vendors to be on top of complex selinux configs or would we be better off with it err, off? I doubt I'll be shipping my android roms with selinux on. that used to be 'cos I don't have the time to get it working and right, but now I also question its motivation and even the kernel implementation too. am I wrong? cheers, robin (yes, I've had a few and yes, this is a troll, but I'd still like to know if anyone's ever fully read and understood the implications of every distro selinux rule and every selinux line in the kernel - giving unaudited power to 3 letter agencies is not a sane way forward...)

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Ruxcon 2013 Security Conference
by cfp＠ruxcon.org.au 24 Sep '13

24 Sep '13

Hi, Ruxcon is Australia's premier technical computer security conference, held at the CQ Function Centre in Melbourne. Ruxcon brings together the best and the brightest security talent in the Australia-Pacific region through live presentations, activities, and demonstrations. This year we also feature a fantastic line-up with several high-profile international speakers. Ruxcon 2013 will be held on the weekend of the 26th of October to the 27th of October. Doors open at 8:00am and the first presentation commences at 9:00am. There are a limited number of tickets available and they are going very quickly. Please register via the Ruxcon website to ensure that you don't miss out: http://www.ruxcon.org.au/register For more information, please visit http://www.ruxcon.org.au/speakers 1. BIOS Chronomancy - Jon Butterworth 2. Mining Mach Services within OS X Sandbox - Meder Kydryraliev 3. VoIP Wars: Return of the SIP - Fatih Ozavci 4. Inside Story Of Internet Banking: Reversing The Secrets Of Banking Malware - Sean Park 5. Top of the Pops: How to top the charts with zero melodic talent and a few friendly computers - Peter Fillmore 6. Deus Ex Concolica - Explorations in end-to-end automated binary exploitation - Mark Brand 7. The Art Of Facts - A look at Windows Host Based Forensic Investigation - Adam Daniel 8. AntiTraintDroid - Escaping Taint Analysis on Android for Fun and Profit - Golam 'Babil' Sarwar 9. Amateur Satellite Intelligence: Watching North Korea - David Jorm 10. Payment Applications Handle Lots of Money. No, Really: Lots of It - Mark Swift & Alberto Revelli 11. 50 Shades of Oddness - Inverting the Anti-Malware Paradigm - Peter Szabo 12. Assessing the Linux Desktop's Security - Ilja van Sprundel 13. .Net Havoc - Manipulating Properties of Dormant Server Side Web Controls - Shay Chen 14. Cracking and Analyzing Apple iCloud Protocols: iCloud Backups, Find My iPhone, Document Storage - Vladimir Katalov 15. Espionage: Everything Old is New Again - Kayne Naughton 16. Buried By Time, Dust and BeEF- Michele (Antisnatchor) 17. Under the Hood of Your Password Generator - Michael Samuel 18. Wireless Wickedness - Steve Glass & Matt Robert 19. BYOD PEAP Show: Mobile Devices Bare Auth - Josh Yavor 20. Top of the Pops: How to top the charts with zero melodic talent and a few friendly computers - Peter Fillmore 21. A Beginner's Journey Into Hardware Hacking - Silvio Cesare 22. Underground: The Julian Assange story (with Q&A session) - Suelette Dryfus & Ken Day 23. Introspy : Security Profiling for Blackbox iOS and Android - Alban Diquet & Marc Blanchou 24. 5 more presentations to be announced. Videos from previous Ruxon's can be found here: http://www.youtube.com/ruxcon Hope to see you there, Regards, Ruxcon 2013 Staff http://www.ruxcon.org.au

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