Banuiesc ca foloesc acelasi lucru ca nmap-ul (-O)
 The -O option also enables several  other  tests.   One  is  the
"Uptime"  measurement,  which uses the TCP timestamp option (RFC 1323) 
to guess when a machine was last rebooted. This is only reported for 
machines which provide this information.

On Thu, 24 Jul 2003, Claudiu Cismaru wrote:

> >
> > Hmmm, am citit si eu acu, taaare sunt curios cum imi testeaza ala la
> > un Linux uptime ???
> > Tcp sequence numbers, altceva, any takers ??
> >
> >     Mircea "magic ping that tests uptime" C.
> 
> Nu. tcp sequence se restarteaza (adica face overflow si o ia de la zero)
> periodic... Vezi pe acolo ca scriau niste chestii, eu nu am apucat sa 
> ma uit prea atent.
> 
> 

-- 
-------------------------
Dan Nae
Romanian Education Network
Bucharest NOC


Raspunde prin e-mail lui