Greetings,
An article today on CNET says A doctoral student at the University
of California has conclusively fingerprinted computer hardware
remotely, allowing it to be tracked wherever it is on the Internet.
http://www.zdnet.com.au/news/security/0,261744,39183346,00.htm
The
That sounds interesting, but I wonder if regularly setting your
computer's clock via ntpd or ntpdate would defeat this.
Having a sysctl MIB to turn off the TCP timestamping would certainly
defeat this. I'll wager that if such doesn't already exist in the
various BSD and Linux kernels, it will
Just answered my own question. On FreeBSD, there is a sysctl MIB to
activate or deactivate RFC 1323 timestamping:
net.inet.tcp.rfc1323
Setting it to 1, the default, turns it on, setting it to 0, turns it off.
Looking at my OpenBSD machine, I see the same sysctl MIB as FreeBSD.
Finally, checking
