Archive
What’s new in Linux kernel 3.8?
Star Wars: a 7 hour-long fan documentary
SecurityTube: lots of videos on security
black magic: 0x5f3759df
The number 0x5f3759df is a magic constant that can be used to calculate the inverse square root of a number very efficiently. See this post for a detailed explanation. Now if you come across this number (which can happen anywhere, anytime), you will say “aha, I know that one”.
Linux games on Steam
For an unofficial list, visit http://steamdb.info/linux/.
Update (20130404)
To install Steam, visit http://store.steampowered.com/about/. The page will offer you to download a .deb installer.
Symbolic links are not treated properly on Dropbox
If you try to use symbolic links in your Dropbox folder, you’ll end up with a mess :( Here is a nice summary of the problems. It turns out that it’s because of a stupid decision that was made by Dropbox a long time ago.
If you want them to implement symlinks properly, please vote here.
Find API keys on GitHub
Problem
You need an API key for a service (like Google or Imgur) and you want to use someone else’s key. Naturally, this is just a theoretical problem.
Solution
This blog post shows how to harvest API keys. In short:
- visit GitHub’s advanced search page
- type in a keyword (for instance “
AIza” for Google API keys) - hit the Search button and choose Code on the left side
Rip streamed audio
Problem
You want to rip a streamed radio.
Solution
- fetch StreamRipStar, which is a frontend for streamripper
- install streamripper (via apt-get)
- configure StreamRipStar, specify the audio stream’s URL and start ripping
Tip
If you want to rip Slay Radio (best Commodore 64 tunes!), use this address: http://relay3.slayradio.org:8000/.
Online Convert(er)
http://www.online-convert.com/
I wanted to convert a PDF with Calibre but it failed. I tried with Online Convert(er) too and it succeeded…
