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TrinitronX

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Everything posted by TrinitronX

  1. I worked with a stepper motor 2 weeks ago. We used a basic stamp and added a function to rotate pin outputs like a shift register. Each step or half step is controlled by moving around some binary values, where each step cooresponds to moving over one place in the shift register. This is the way most stepper motors work. To know the rotation of the motor to begin with it's useful to have a small IR LED and phototransistor assembly where the motor's shaft is connected to a small arm which can pass between the LED and phototransistor. This way, you can sense the 'zero' position of the motor and know its rotation simply by watching the phototransistor's signal. For the driving pins off the PIC, it's useful to use a chip containing darlington pairs, or just a bunch of transistors so they can do the switching for the higher powered motor inputs. Hook up a bunch of them with pull-up resistors and then trigger the switches using the PIC pins. Here's the free software for the basic stamp we used: http://www.parallax.com/tabid/441/Default.aspx
  2. You can look at the robots.txt file on the site for a list of hidden areas and follow those links too.
  3. I think a couple FPGA boards have ethernet ports.. it'd be pretty awesome to code up some hardware to act as a PXE server with an embedded linux kernel image... which would also be updatable. Hell, I think a couple boards actually can run embedded linux on them, it's probably just a matter of setting it up to do PXE. Hopefully eventually I'll get a FPGA dev board to mess with on random projects like this.
  4. Yeah, I can see both ways too, it goes clockwise most of the time, so I guess I'm right brain dominant? I was able to make it turn the other way by looking down and to the right a bit and spacing out for a second, and it switched quickly to going counterclockwise.
  5. http://img295.imageshack.us/img295/5742/rainbowkittygu7.th.jpg[/img] (rainbow kitty says: MEOW!) So since I made these scripts a long time ago and found them quite useful for "set and forget" rainbow table generation under linux, I've decided to release them. Even though they're REALLY simple, they're also REALLY useful. [pre]Dependencies: bash (duh) Gentoo ebuilds: net-ftp/lftp #A sophisticated command line ftp/sftp/http/https client and file transfer program (used in connect_ftp.sh) app-arch/p7zip #Port of 7-Zip archiver for Unix (used in 7zip_max.sh) app-crypt/rainbowcrack #Hash cracker that precomputes plaintext - ciphertext pairs in advance (used in gen_tables.sh) sys-devel/bc #Handy console-based calculator utility (used in status.sh) app-misc/screen #Not required, but recommended for using the scripts on a ssh-ed into machine. This nice little app is a terminal multiplexor. In other words, it allows you to run a command that's going to take a while, detach from the "screen", and then log out of ssh. You can come back later and reattach to see the status. Cooresponding packages in Ubuntu: lftp p7zip-full (There is no rainbow crack package in Ubuntu's repos. You must build from source http://www.antsight.com/zsl/rainbowcrack/r...ack-1.2-src.zip ) bc screen[/pre] What's included: 7zip_max.sh -- simply pass it a filename and it'll 7zip it using maximum settings, output file will have .7z appended connect_ftp.sh -- A one liner to connect to the Hak5 rainbow tables upload server. After using just type: put <filename> to upload, or help for other commands gen_tables.sh -- The real meat and potatoes here... Just put in parameters into the generate.list file one per line, and run ./gen_tables.sh . It will then generate each table using the parameters supplied. Set and forget. (Also saves log files too :D) generate.list -- The config file for gen_tables.sh. Includes some instructions and example lines (comments are supported as long as the first char per line is #, no using it mid-line though) log/status.sh -- This one's real nice to give you a percent completion for one of the log files that will appear in the log directory. Just run it with a log filename as the first argument to see how far you've got to go for that table. That's about it.. they're pretty easy to use. One other note about the "screen" program if you want to use it. just run: screen first before running the gen_tables.sh script. Then press Ctrl+A then D to Detach from the screen. Now you have the script working in the background, and can safely log out of ssh and come back later without killing the task. Also since rtgen itself is resume-aware.. you can safely stop the script at any time and re-run it to resume, it should quickly run through any previous tables and notice they're complete, and continue with the latest one it needs to generate. Script Kitties MEOW! Download link: http://files.filefront.com/rkittytargz/;93...;/fileinfo.html
  6. Is this a choice? The one crab hat to rule them all.
  7. Is there even a difference between Shockwave and Flash anyway? I know a while back, Adobe released Flash 9 for linux: http://www.adobe.com/shockwave/download/st...sh/English.html They're working on making FLEX for linux too: http://blogs.adobe.com/penguin.swf/ I've been using it for quite some time now. It solved the horrible youtube skipping problem with the old flash7 they had before 9.
  8. Other: Lysithea The other choices just don't seem to have a ring to them for me... maybe if Lavoni was Lavonia as SomeoneE1se suggested.
  9. :D R.I.P Cube... I'll miss you +@##########M/ :@#########@/ ##############$;H#######@;+############# ###############M######################## ##############X,-/++/+%+/,%############# ############M$: -X############ ##########H;. ,--. =X########## :X######M; -$H@M##MH%: :H#######@ =%#M+=, ,+@#######M###H: -=/M#% %M##@+ .X##$, ./+- ./###; +M##% %####M. /###= @##M. X###% %####M. ;M##H:. =$###X. $###% %####@. /####M$-./@#####: %###% %H#M/, /H###########@: ./M#% ;$H##@@H: .;$HM#MMMH$;, ./H@M##M$= X#########%. ..,,. .;@######### ###########H+:. ./@########### ##############/ ./%%%%+/.-M############# ##############H$@#######@@############## ##############X%########M$M############# +M##########H: .$##########X=
  10. If by smartboard, you mean these: http://www2.smarttech.com/st/en-US/Products/SMART+Boards/ I think it is a touch sensitive display, we have some of the projector type models at my college. We were playing around with it, and you can draw with your fingers, or the "markers" that are there on the tray. Depending on which you pick up, it changes the color. The actual color of the marker does not matter, you can mix them around, for example, put the red marker in the blue slot... then pick it up, it writes blue. The eraser kinda sucked for us though... it was way too touchy and jumpy. Precision erasing was impossible for us... it would randomly jump from place to place around the general vicinity of where we had the "eraser". Kinda funny though after someone was doing a presentation when people started randomly poking the display, taking control of his mouse, as he was at the PC.
  11. This is actually very interesting, since you seem to only need the hashes, and not the actual password. By injecting hashes into an already running session, you bypass the need to actually know the password, correct? I really wish I could get my hands on that tool to play around with on my home network, but alas, such things probably shouldn't be released, as they would ultimately get into the wrong hands.
  12. 1. Somehow get 2 pigs 2. Write the number "1" on the first, and "3" on the second 3. Release the pigs around the school, and watch as everyone freaks out trying to find pig #2
  13. [me=TrinitronX]clicks on link and logs in... oh no! you tricked me :P[/me] Just figured I'd make this known, even though it's not an extreme red alert type issue. Lately I've been getting interested in PHP and web security for my new job coding in PHP.
  14. After a recent search on secunia, I realized that the forum software is currently vulnerable to a session fixation bug. It's still unpatched as of now, but there is a workaround. It's probably a good idea to make sure people don't click on forum links given by others which set a PHPSESSID parameter. Read more about it and the workaround here: http://www.majorsecurity.de/index_2.php?ma...rls=major_rls47 (VaKo: +5 for reporting this)
  15. But shouldn't a changing capacitance should yield a changing current over time? For a Capacitor: I(t) = C * dV(t)/dt I(t) = current over time V(t) = voltage over time For stereo, you'd need a way to get two input channels and transmit them in the right way. Here's how stereo FM broadcasting works: http://en.wikipedia.org/wiki/FM_radio#FM_stereo
  16. TrinitronX

    cat cam?

    Just add a laser pointer sight and it'd be awesome!
  17. For me, Nerdcore, techno, trance, and trip-hop are all great for coding. I just put amarok on a dynamic playlist and listen to whatever comes up most of the time... skipping some songs if it doesn't pick good ones. http://www.last.fm/user/trinitronx/
  18. Once you get two screens.... you won't want to go back :P
  19. I dunno about everyone else, but the end made me feel like the episode was all backwards. It just felt unnatural to have that bit pasted to the end.
  20. I'm liking greyhats. . . but of course. . . i've always thought of myself as a greyhat
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