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A space to ponder, discuss, speculate, disagree, and learn.

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  1. Old Comment

    Another systemd zero-day security vuln

    root@ws1:~$ useradd 0day
    useradd: invalid user name '0day'
    Perhaps they should have used Slackware.
    Posted 07-09-2017 at 07:11 AM by GazL GazL is offline
  2. Old Comment
    Posted 07-06-2017 at 12:34 PM by mralk3 mralk3 is offline
  3. Old Comment

    Automating custom Slackware install tarball and post-setup tweaks

    Alright no problem. I have you added to my github rss feed.
    Posted 07-31-2015 at 10:27 PM by mralk3 mralk3 is offline
  4. Old Comment

    Automating custom Slackware install tarball and post-setup tweaks

    Originally Posted by mralk3 View Comment
    Please be sure to post a link to your GitHub account in this comments section. I would be very interested in looking at your work.
    Regrettably, most of my work is still in private cvs repos. I've been meaning to move them to Github, but mostly haven't.

    Some of my older work is browsable at and my Github page is (there's not much there).

    Most of the scripts in the ttk-slackware-customizations repo are horrible, horrible. I'll be taking advantage of this project to clean them up, and wean them off of oddball module dependencies (KS and DR, primarily). Oh yeah, a lot of them don't work without modules which haven't been added to that repo yet, too.

    It's very much a work in progress.
    Posted 07-31-2015 at 04:46 PM by ttk ttk is offline
  5. Old Comment

    Automating custom Slackware install tarball and post-setup tweaks

    Please be sure to post a link to your GitHub account in this comments section. I would be very interested in looking at your work.
    Posted 07-31-2015 at 11:21 AM by mralk3 mralk3 is offline
  6. Old Comment

    Pondering version two of "sel"

    One of the regulars in ##slackware suggests using glib's hash table implementation (which I've not used) and Inline::C (which I have used, and like). He's seen 3x speedup this way vs native perl hashes: . The main downside here is introducing a gnome dependency, but their implementation looks nicely complete.

    Another regular pointed me at his own C hash table implementation, which also looks nice, though it needs a bit of fixing (which he might be taking care of now): . Specifically, some declarations need to be changed so that it either uses Hash and List or TList, THash, and FHash. Also I'd want to replace his hash() with my own implementation (which is about as fast as Google's CityHash, and generates more square output).

    It occurs to me that if I write the code such that the functions which access/manipulate the intermediate format are encapsulated and isolated, I can use perl hashes first to get things working, and then replace those isolated functions with an Inline::C implementation, using either of these hash libraries.
    Posted 04-01-2015 at 04:30 PM by ttk ttk is offline
  7. Old Comment

    Itching to write a new GPC article

    That is really different. Thanks for explaining your interest.
    Posted 02-11-2015 at 10:14 AM by vmccord vmccord is offline
  8. Old Comment

    Itching to write a new GPC article

    Originally Posted by vmccord View Comment
    May I ask, how you got into this research? It's interesting.
    Somewhat indirectly.

    About fifteen years ago, I became interested in the material science of composite armor. One of my mentors in the subject, Paul Lakowski, invited me to the Tank-Net military forums, where I became acquainted with Anthony Williams, who is championing the GPC concept to the UK Defense Ministry and is a Tank-Net regular.

    In order to understand armor, and to design armor to defeat a threat, it is necessary to become familiar with the threat it needs to defeat, which meant that my interest necessarily spilled over into the study of things which seek to penetrate armor -- long-rod penetrators, shaped charges, shell case fragments, and bullets.

    To this end, I had already built out a few formulae for predicting the ballistic behavior of small-arms projectiles. Tank-Net is a gift culture, where everyone helps everyone else with their interests, and gets helped in turn with their own -- kind of like LQ, but with militaria rather than Linux. In this spirit, I tried to apply my formulae to the GPC discussions, to foment better understanding.

    I quickly discovered that my formulae (which mostly dealt with penetration) were woefully insufficient to the subject. The GPC issue touches on matters of internal and external ballistics, and on more terminal ballistics than just penetration. Just as important are munition total weight, barrier defeat, and wounding, which I'd never considered before.

    An engineer's got to engineer, and I've been digging in and figuring things out, collecting other people's formulae and a few of my own into Ballistics Perl modules which I can use in my perl calculator. These are still very much under development, and likely will be for some time.

    The formula for estimating the weight of empty brass cartridges is somewhat wrong, for instance. It is fairly accurate when a cartridge was designed for a given volume and peak pressure, but many cartridges are actually derived from larger/heavier cartridges (the 6mm PPC from the .220 Russian, for instance, and the .243 WSSM from the .300 WSM), which makes them heavier than they "need" to be, and heavier than Physics::Ballistics::Internal::empty_brass() predicts. Thus some of the weights in my second GPC article are wrong, which is something the third GPC article will address.

    I've started writing that article, but it's slow going. I want to touch on a wider variety of topics in it than I did in the first two articles, and it's in competition with other personal projects for my time and attention.
    Posted 02-10-2015 at 10:49 AM by ttk ttk is offline
    Updated 02-10-2015 at 11:03 AM by ttk
  9. Old Comment

    Itching to write a new GPC article

    May I ask, how you got into this research? It's interesting.
    Posted 02-05-2015 at 05:08 PM by vmccord vmccord is offline
  10. Old Comment

    Cat Silliness

    Ditto on that. My poor girl still cowers every time someone makes a quick upward movement, but she's still the sweetest thing ever.
    Posted 08-07-2014 at 02:02 PM by vmccord vmccord is offline
  11. Old Comment

    Cat Silliness

    That's insane, rokytnji. My mom had a similar experience with a dog that she "rescued" from certain death on a highway (being tossed from a car) dog she ever owned.

    I don't understand people who do stuff like that. It's one thing to attempt to do harm to an animal that is capable of defending itself, but a fuzzball kitten? I don't get it.
    Posted 08-06-2014 at 12:00 AM by rocket357 rocket357 is offline
  12. Old Comment

    Cat Silliness

    Crash, who I scrapped off of a freeway about 15 years ago. A male.
    Has seen better days. He sleeps mostly. I Think he has 1 tooth left.
    I still remember him as a scared kitten hiding in my shop. Healing up.
    Took about a week for him to come out and look at me and cry out.
    Crash is a black and white sylvester cartoon looking cat.

    Miso. My over weight female (fixed). She is a princess who is not afeared of nothing.
    She IS a human lover. Not a fighter. But. I have seen her throw back a feral cat going
    for her feed bowl.
    Miso is a snowshoe cat. Google will tell you.

    Mine serve a function keeping critters from the desert taking up residence in my M/C shop.
    I have no field mice, ground squirrels, rattle snakes, or kangaroo rats in my shop because of this.

    My 5 dogs keep the skunks, porcupines, bobcats, coyotes, and mountain lions at bay.

    As you can tell. I am not a city boy.
    My wife has connections with the animal control division in my county.
    So all my cats and dogs are throw aways that were to be put to death
    any ways. They live a natural good life with me and are happy campers.

    After crash passes on. I will be on the look out on the freeway again to pick up his
    successor. I saw crash thrown out of a car window doing 70MPH on a Texas freeway
    while riding my motorcycle. I inserted the busted up kitten inside my leather jacket and took him home.

    Pizza Night!
    Posted 08-05-2014 at 11:47 AM by rokytnji rokytnji is offline
    Updated 08-05-2014 at 06:19 PM by rokytnji
  13. Old Comment

    Cat Silliness

    The cat we have now is a lot like your orange cat. He's average size, very friendly, and you wouldn't expect him to get involved in a fight ever. When we moved to Washington, there was a neighborhood cat that was used to using our back yard as a highway to cut across the neighborhood, and Stewie shredded our screen door so he could go beat the snot out of the invader. I'd never seen Stewie do anything like that before, so it was quite a shock.
    Posted 08-02-2014 at 02:59 PM by rocket357 rocket357 is offline
  14. Old Comment

    A completely uninteresting, self-centered whinefest

    Thanks, vmccord, rokytnji :-)

    The last few days have indeed been better.
    Posted 06-21-2014 at 06:17 PM by ttk ttk is offline
  15. Old Comment

    A completely uninteresting, self-centered whinefest

    Welcome to Hell, married life. (Just funning)

    Owning 5 dogs and 2 cats myself because the wife is a soft touch. One of the reasons I love her so much.
    Losing sleep can make one a bit cranky.

    Thankfully for me a I am a biker with my own business and when times get tough.
    I use biker prozac and all frustration lifts off my shoulders like magic.
    My grin makes me easier to bear in company.

    Better you post here than beat your loved ones.

    Hope things work out for ya. Sometimes one has to bite the bullet. Think of all the poor souls worse off
    than you and then you might shake your head and grin your self.
    Posted 06-21-2014 at 10:19 AM by rokytnji rokytnji is offline
  16. Old Comment

    A completely uninteresting, self-centered whinefest

    linuxquestions is as good a place as any and better than most for a late night rant. Hopefully today will be better.
    Posted 06-19-2014 at 08:47 AM by vmccord vmccord is offline
  17. Old Comment

    Headcrab, and $NEWJOB

    :-) Thank you!
    Posted 06-14-2013 at 01:12 AM by ttk ttk is offline
  18. Old Comment

    Headcrab, and $NEWJOB

    Congratulations on a new job.
    Posted 06-13-2013 at 09:02 AM by vmccord vmccord is offline


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