Background: Debian

• free GNU/Linux distribution

• project; founded 1993 by Ian Murdock

• three archive sections

• • main: must meet the “Debian Free Software Guidelines” (which basically is the “Open Source Definition)
  • contrib: must also be free software but can also (build-)depend on non-free things or things not in Debian at all (Example: mplayer-using mozilla plugin)
  • non-free: stuff not free