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Alias

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Everything posted by Alias

  1. OMG we can have status updates now?

  2. I just force shutdowned (if that's a word) all of the nodes, just by holding the power buttons. It's quick and it's not going to do any short term damage. I suppose you could login to each of the nodes and then shut them down normally, then login to the frontend node and shut that one down as well. To be honest I'm not sure if their is a proper way to do it. Although you could probably whip up a bash/python script to do it automatically remotely.
  3. Yay, the forums are back.
  4. It has to be a program especially made to use MPI and then you can compile and run it on all the nodes. Realistically High Performance Clusters like this aren't really useful for running normal programs, they're much more useful for inhouse scientific simulations and data manipulation etc. You don't need any disks in your slaves as they boot over the network. Just set Ethernet or LAN or something similar as the number 1 boot option in your boot priority in your BIOS. Then when the slave boots it will check to see if it can connect to your frontend node, if it can it will then download the OS from your frontend node and boot that. You'll only need an ISO if your BIOS doesn't support booting from the network. In that case then you can use ROM-o-Matic to boot a temporary Linux OS that will then boot from the network. It can be a bit complicated but once you've done it a couple of times it's really easy.
  5. You should be able to but I don't think they'll run on all the nodes just your frontend node. If you want to add software just do a "apt-get install <program>" and that'll download and install the software for you. Problem is if you're only running in RAM then the next time you boot it will have been flushed.
  6. Yeah that'll be enough but once you get started you'll just end up wanting more power :P Here's a video I did with setting a Pelican HPC up. It was soooo easy. Sorry about the poor quality.
  7. No you are right, you are looking for High Performance Clusters. High Availability Clusters are made for when software (or hardware) fails it can automatically recover by switching to backup software/hardware. Have a look on the Wikipedia page for High-availability Cluster
  8. Same. Still haven't decided whether I'll see it in 2D or 3D yet. I'm sort of leaning towards 3D but then again that'll ruin the High Definition goodness. Then again, I could just see it twice :P
  9. Actually I might see if I can make a video tomorrow if I can figure it out.
  10. Hahah that was great. I am so excited to see that movie.
  11. Pelican HPC is a good place to start. It has MPI build it, not too sure about Python wrappings for it but I'd imagine their must be some around. From what I understand you have a front node that then delegates part of an MPI program off to the other nodes over a fast network.
  12. Depending on how they've made it (I'll check later cause I'm not near a good enough connection for downloading) what you can do is extract the zip/iso and then unsquash the filesystem. Chroot into the filesystem and then compile a new kernel. Then squash the filesystem, generate an iso and you should be ready to go.
  13. The correct reply here is, "Fuckin Magnets, how do they work?"
  14. Webmin is really, really, damn awesome, but if you're only using it to start and stop a game server then it's a bit of a waste of resources. It should be easy enough to hak (pun intended) up a simple Python script that will accept a password that will then run a command that will then start/stop the game server. The only problem then is that if the game server needs root privelages to run (if it needs a port under 1024) then security will be an issue.
  15. Man I'd really love to investigate this more but I don't have an XBox :(
  16. Adelaide, Australia (the town in Australia where nothing happens)
  17. My guess is that the XBox would transmit via SSL in which case you could probably use SSLstrip to get the cleartext packet data however from there the username and password itself would probably be encrypted, going off of other Microsoft products it's a reasonable guess that it would be in NTLM which these days is not as secure as it once was.
  18. As in the webpage itself? If that's the case then you'll need som CSS and Javascript, I suggest you use jQuery for your Javascript, it makes things a whole lot easier.
  19. Use the PHP class here and some other PHP code... &lt;?php ini_set('display_errors', 1); error_reporting(E_ALL); require 'search.class.php'; if(isset($_GET['string'])) { $string = $_GET['string']; } else { $string = 'Hak5'; } $search = new TwitterSearch($string); $array = $search-&gt;results(); echo '&lt;pre&gt;'; print_r($array); echo '&lt;/pre&gt;'; ?&gt; For your testing purposes. Just make sure that you don't include the debugging lines at the top when actually releasing. Also I've actaully set this up on my server so that you can have a fiddle with. Just go to http://stewartmalik.net/twitter/search.php by default it just searches Twitter for references to Hak5 however if you change a GET value say for example http://stewartmalik.net/twitter/search.php?string=Twitter then it will output the Twitter search for Twitter instead. As an output it just show the Array.
  20. For your audio editing try Audacity first and if that doesn't work for you then try Ardour, it's harder to use but has many more features. As for ripping the audio just use ffmpeg or mencoder... ffmpeg -i input.vid -vn -acodec pcm_s16le -ar 44100 -ac 2 output.wav That will extract the audio from an input file (input.vid) and output it to a wave file. You can change the audio codec to mp3 if you really wanted but if you're going to be making edits its best to work from a WAV. This page will also help.
  21. Use WPA2 AES-PSK instead, as of the moment it's more secure. TKIP is going to be deprecated in the next 802.11 standard anyway.
  22. No probs, have fun on IRC
  23. Alias

    A Picture

    Or if you're running Linux or perhaps on a Mac as well... cat /path/to/cd-sis.txt | base64 -i -d &gt; /path/to/output.jpg
  24. Try it on port 6667, depending on your IRC client their should be an option in your preferences or you can just do... /server irc.hak5.org:6667
  25. Easy, install an IRC client like X-Chat, Pidgin, mIRC, irssi etc. and then run /server irc.hak5.org Also you should probably have a look at IRC Help
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