[daemonfowl]

Hi everybody !

While surfing Netcraft days ago, I noticed that for some websites/servers OS detection falls short to reveal info .. they write 'unknown' .. eg. : plan9.bell-labs.com ..

* In theory, how can a server bypass nmap -O for instance or Netcraft OS-detection craft ?
* how can I hide my OS ID ..

I also noticed the generic description 'linux' instead of the distro name ..