- luv-main - luv.asn.au

Re: Disk Washing
by Christopher M. Bailey 04 Sep '13

04 Sep '13

Thermite, yep that'll do it :-P -------- Original message -------- From: Daniel Cross <daniel(a)ritualmedia.co.nz> Date: To: David Zuccaro <david.zuccaro(a)optusnet.com.au> Cc: luv-main(a)luv.asn.au Subject: Re: Disk Washing Well, in that case probably Dban will be sufficient for your needs. If still going with dd I agree with the bs=1M switch. Incidentally, a discussion with a friend this evening lead us to the decision that a good way (although involved) to erase a drive would be: 1) Open disk enclusure. 2) Use bench grinder to create aluminium powder from the top of the disk enclosure 3) find something rusty, (or another source of iron oxide) and create powder. 4) mix 50:50 by volume. 5) if available add some magnesium (left over guy fawks sparklers?) 6) pour powder over HDD spindles. 7) Light and step well back while the platters melt. I might try this in coming months and report my results ;) Daniel On Mon, Sep 2, 2013 at 6:30 PM, David Zuccaro <david.zuccaro(a)optusnet.com.au> wrote: On Mon, 2013-09-02 at 17:45 +1000, Daniel Cross wrote: > I guess it depends on your threat model, so rewinding a bit - who are > you wanting to prevent accessing your data? This greatly informs the > conversation. The methods offered above, and in many of the replies > thus far, assume a very sophisticated adversary. > > Daniel Let us assume that the adversary is not a three-letter-government-agency; not that I consent to three-letter-government-agencies accessing any of my information.

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Hostapd, wireless latency and configuration issues
by Jason White 04 Sep '13

04 Sep '13

As discussed before on the list, I've installed a PCI Express 802.11a/b/g/n card to serve as my wireless access point, employing an Atheros 9300 controller. I'm encountering high latency and jitter when I ping any device on the wireless network (i.e., my laptop and a new Android phone). I also discovered that, as reported on various Web sites, the Intel iwl5100/5300 controller in my laptop isn't very reliable under 802.11n. Using the firmware for the card provided at wireless.kernel.org rather than that in the Debian firmware-iwlwifi package yields more reliable throughput however, and seems to reduce the incidence of failure to associate with the access point. Also, it isn't clear to me how best to configure the ht_capab option in /etc/hostapd/hostapd.conf. For the moment, I've copied a sample line published in a post by another user of the same card: ht_capab=[HT40-][HT40+][SHORT-GI-20][SHORT-GI-40][TX-STBC][RX-STBC1][DSSS_CCK-40][LDPC] but naturally I would rather know what I ought to do in this regard. Any suggestions about the latency problems would be welcome as well as general configuration advice. It should be noted that others using the same hardware don't appear to be encountering issues, judging by various blog posts. The kernel here is 3.10-2 from the Debian package currently in Sid.

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Disincorporation: why I changed my mind and will vote yes
by Chris Samuel 03 Sep '13

03 Sep '13

Hi folks, I've found the discussions really useful, thanks all. The issues around the rules from the state government and how they change and what they require has made me reconsider my position on disincorporation of LUV. Previously I was neutral with a slight tendency against it but having seen all the rules that LUV has to deal with and the fact there are quite real penalties for not being in compliance with them then I see that as quite a burden and liability for LUV and something we would likely be better off without. Linux Australia appears to be better resourced to deal with those issues and there is an appeal to make that compliance somebody elses problem and to let the local group just get on with doing Linux related things. So I've changed my mind and will be voting yes for d14n tonight. All the best, Chris -- Chris Samuel : http://www.csamuel.org/ : Melbourne, VIC

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Disk Washing
by David Zuccaro 03 Sep '13

03 Sep '13

What is the best way to wash a disk? I tried this but it is taking forever. dd if=/dev/zero of=/dev/sdg1 Thanks

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Re: Disincorporation: why I changed my mind and will vote yes
by Petros 03 Sep '13

03 Sep '13

Quoting "Chris Samuel" <chris(a)csamuel.org> > On 03/09/13 16:49, Petros wrote: > >> We want to present it to the AGM but if it does not get adopted it >> isn't the end of it. We still exist, just with an outdated >> constitution. As our president notes, it is still valid because it was >> established before the new legislation went through (I believe him, I >> did not check myself) > > The Consumer Affairs website says that if you have not notified them > that you will be using your own locally determined rules by November 26th > then the new model rules will apply to you whether you want them or not. Only if you used the model rules before: > http://www.consumer.vic.gov.au/contact-us/ask-a-question/incorporated-assoc… From 26 November 2013, the new rules will automatically apply to incorporated associations currently using our model rules, unless they notify us prior that they will create their own rules. I don't know whether that is the case. Is LUV using model rules? > One downside is that the new model rules require the register > of members to include past members and the date of them leaving; > they also require a minuted committee resolution to accept a new > member into the association, which seems pretty clunky (and rules > out mailing lists). > > There's nothing to stop LUV writing their own version of the > model rules to suit it, but that would need an AGM/SGM to pass > them (as was done by the Mt Burnett Observatory earlier this > year). Yes, that can include tweaks to registration. E.g. "probationary" via e-mail, confirmed at a later state (e.g. committee meeting). Regards Peter

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Upcoming MySQL/MariaDB training days in Melbourne
by Arjen Lentz 03 Sep '13

03 Sep '13

Hi all Melbourne - http://openquery.com/training/location/melbourne - Thu 17 Oct + Fri 18 Oct MySQL/MariaDB Backup, Recovery and Replication Workshop incl. Galera (AUD 975 + GST, PC lab) Follow the links for more details and booking - if you have any questions, please ask! There is also a replication workshop scheduled in Auckland NZ for 24+25 October, that's just after the OSDC conference. http://openquery.com/training/location/auckland Other locations also have training scheduled, and there are additional course modules - feel free to request and we'll take that into consideration when scheduling upcoming days in your city! Regards, Arjen. -- Exec.Director @ Open Query (http://openquery.com) MariaDB/MySQL services Sane business strategy explorations at http://upstarta.com.au Personal blog at http://lentz.com.au/blog/

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The End of LUV, Inc? An Example of Federalism and Unitary Organisational Structures
by Lev Lafayette 03 Sep '13

03 Sep '13

In a few weeks, Linux Users of Victoria, Inc., will be holding another Annual General Meeting. But this one is somewhat different to others. At this meeting, the very existence of LUV as an independent organisation may come to an end. A motion is on the agenda that LUV dis-incorporates and merges into Linux Australia, Inc., as a subcommittee of that group. It is an issue which I personally have given some serious thought to over the past several months, and more fleeting consideration over the past few years. LUV is one of the the oldest (since 1993), most active (three speakers per month), and largest (c1500 members) Linux organisations in the world. We have been a mainstay behind such events as Software Freedom Day, install-fests, regional mini-conferences, and of course, our regular beginners workshops and technical talks. All of this, one hastens to add, will not change at all with the proposed dis-incorporation. What will change is that LUV will not be an independent organisation. Our assets, such as they are, will be transferred to Linux Australia, in accordance to the Act governing Incorporated Associations in Victoria. Our income and expenditure will also be legally part of Linux Australia as well, although that body has indicated that there is some room for autonomy in those areas. At the very least, Linux events in Victoria that require funding could go directly to the national body, rather than to the state one which tends to have somewhat more meagre financial resources. An example would be the establishment of more regional chapters. We will be part of a national organisation and will be able to have more direct input into country-wide affairs, including national policy, as they are related to Linux. Our administrative overhead, which it is admitted is not particularly onerous, should also decline. Plus, there are significant economies of scale and of network scope in being part of a larger group. One also hopes that we will see people who have hitherto been more involved in Linux Australia from Victoria, participating in activities of the Victorian subcommittee of LA. Overall however, it must be noted that Linux Australia is a unitary body, not a federal one. Members of the committee of Linux Australia are elected from the membership as a whole, not as nominees from the respective subcommittees and, as subcommittees only exist with the approval of the LA committee, they could be disbanded in part or entirely, at any time. The circumstances that this would arise would indeed be quite extraordinary, but it is certainly something that must be considered. I admit that I am much more in favour of bottom-up, federalist organisations (e.g., a national committee from regional LUGs), rather than those of the unitary model (e.g., a national organisation with local subcommittees). I also acknowledge the substantial benefits that arise through being part of a larger organisations. Whilst Linux Australia is a product of its own history and perhaps does not represent what I consider the most optimal organisational structure, especially for an interest which is primarily the result of of the energy of local volunteer activists. There is of course the possibility that LA may consider changing its organisational structure over time. Still, if this does mean the end of LUV, Inc. we can certainly be very proud of what has been achieved under our name in the past twenty years. LUV was there, from the very beginning of Linux, when a rag-tag team of wild-eyed volunteer coders declared that they could take on the massive, multi-billion dollar proprietary operating systems, by opening the code to all, by making it free to modify and to distribute, and produce something that was technically superior by any meaningful metric. That was truly revolutionary. LUV, Inc.? You're a superstar. http://www.youtube.com/watch?v=N_zLBsRYD8w -- Lev Lafayette, BA (Hons), GCertPM, MBA mobile: 0432 255 208 RFC 1855 Netiquette Guidelines http://www.ietf.org/rfc/rfc1855.txt

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Re: Disk Washing
by Petros 03 Sep '13

03 Sep '13

Quoting "Steve Roylance" <roylance(a)corplink.com.au> > when the Space Shuttle blew up 60km above Texas, over 98% of the data was > recovered from the disks found in the debris. http://www.computerworld.com/s/article/9083718/Shuttle_i_Columbia_s_i_hard_… "Everything but the drive's platters were virtually unusable" so the important parts storing the data was still there:-) But only one of three disks "survived": "Two other hard drives aboard the Columbia were so severely damaged that it was impossible to extract any usable data" I also found interesting: "Edwards said the Seagate hard drive -- which was about eight years old in 2003 -- featured much greater fault tolerance and durability than current hard drives of similar capacity." Anyway, amusing story:-) Regards Peter

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Re: The End of LUV, Inc? An Example of Federalism and Unitary Organisational Structures
by Petros 03 Sep '13

03 Sep '13

Hi Luv, to be honest I am sometimes surprised about arguments arising from formal/legal matters. I am a club committee member of a ski club (Melbourne Nordic) with an ancient constitution, printed on a typewriter if I remember correctly. A while ago some legal rules changed (don't ask me for the right term, some Corporation Act or so) To satisfy these legal act some changes are advisable so we may change our constitution to be on a safe side if issues arise (e.g. related to liability, insurance etc) There are some model rules, someone made the effort to tweak them that they become our new constitution and we have an AGM about it in a few weeks time. Really, nobody wants to read this. If you are suffering from insomnia I may sent the constitution to you. It is about the aim of the club, how many people it needs to change a light bulb.. (well, if you read this you're not asleep yet;-) It does not change anything substantial - but still there is an uneasiness in some.. what sinister motives could the committee have to change the constitution? There are none - we want to make it easy to keep the club running and not being caught with an outdated constitution if there is an issue and there is a lawyer looking into it (e.g. insurance companies have plenty of them;-) As far as I understand joining LA and running LUV as a regional informal group is suggested to: - Make life easier (one insurance, one committee in the country that has to suffer the legal stuff is enough, one website for the list..) - Everybody gets counted, LA has more weight advocating Open Source if there are xy members more It does not kill the list, the meetings don't change: They are the heart of the LUV, I think. There are small issues e.g. related to sponsoring but I do not see a problem. I don't think there are "evil LA people" pocketing donations earmarked for LUV. I cannot see that the meetings get overrun by evil Sydneysiders hell-bent to ruin them, I don't think the Queenslanders just wait for the mailing lists moving to a LA server to shut them down. Until now I did not care for the legal structure making up LUV at all, and I don't know how many people really want to read constitutions etc. Honestly, why bother? So just go ahead, I think. But if not - I am not that sad either. The legal structure is the last thing I am worried about. Regards Peter

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Application form for membership of LUV
by Chris Samuel 02 Sep '13

02 Sep '13

Hi all, Under the rules of LUV the following form is what must be submitted (and approved by the committee) for you to be a member of LUV and thus eligible to vote in the AGM. See section 4 "4. Membership, entry fees and subscription" for details. The form is quoted from the LUV rules at: http://luv.asn.au/node/8 APPENDIX 1 APPLICATION FOR MEMBERSHIP OF LINUX USERS OF VICTORIA, INC. I, _________________________________________________________________________, of _________________________________________________________________________ desire to become a member of ______________________________________________. In the event of my admission as a member, I agree to be bound by the rules of the Association for the time being in force. ______________________________________________ Signature of Applicant ______________________________________________ Date -- Chris Samuel : http://www.csamuel.org/ : Melbourne, VIC

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