Poked.net

Sunday, July 25, 2004

Roommate Lauren got me started on a new online game. Check it out if you are interested, click the link even if you aren't and press the button for the correct number - it helps me out even if you don't choose to play:

http://www.kingsofchaos.com/recruit.php?uniqid=e2d22hz2

Sunday, July 11, 2004

Sweet. With aim network improvement, you can now IM my cell phone. Just send am IM message to:
+1864XXXXXXX where you replace the X's with my cell phone number. Its pretty cool, although I doubt that I'll ever use it.

Friday, July 02, 2004

This is really cool. Not because it is another vulnerability found in software, but the simplicity of the vulnerability is sweet. Basically you take a huge image, say 19000x19000 pixels. Each pixel in an uncompressed image takes up 3 bytes, so this is rougly 1 gigabyte in size. Yet, if all the pixels are the same color, gif compression will make the whole thing, say, 45 kbytes. But most pieces of software just assume - image, cant be that big, just decompress it all into memory without being any smarter about the process than that. But of course, most software doesn't have a gigabyte of available memory, so the OS requests memory from the really slow hard drives and the system slows to a crawl as we start thrashing (technical term when memory pages are being pushed back and forth between hard drive and RAM in a bad way). Anyway, if you feel like some pain, here is a link to that harmless, little 45k image mentioned above. (Mozilla/Linux couldn't handle the pressure, had to kill the process).

The flip side to this is that you can really download a gig of data in about a second on a phone modem. Heck yeah.