Re: On TCP sequence numbers

1999-08-23 Thread Tiny Non Cats

[ Geoff Rehmet ]
 Another question that comes in to this is - how good a tool is nmap
 for evaluating the predictability of the sequence numbers we generate?

Just a funny (?) aside - while playing about with nmap here a while back, 
a colleague accidentally discovered that our Digital (or Compaq Tru64, if you 
want to be perverse) Unix 4.0E box was using a constant (?!) sequence 
number. 

Cian

-- 
What think ye of Christ? Whose son is he? Will you, like Peter, boldly say: 

   "Who?" 



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Re: On TCP sequence numbers

1999-08-23 Thread Tiny Non Cats
[ Geoff Rehmet ]
 Another question that comes in to this is - how good a tool is nmap
 for evaluating the predictability of the sequence numbers we generate?

Just a funny (?) aside - while playing about with nmap here a while back, 
a colleague accidentally discovered that our Digital (or Compaq Tru64, if you 
want to be perverse) Unix 4.0E box was using a constant (?!) sequence 
number. 

Cian

-- 
What think ye of Christ? Whose son is he? Will you, like Peter, boldly say: 

   Who? 



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with unsubscribe freebsd-hackers in the body of the message



Re: On TCP sequence numbers

1999-08-20 Thread Cillian Sharkey

 Another question that comes in to this is - how good a tool is nmap
 for evaluating the predictability of the sequence numbers we generate?
 
 Ideally, I would like to do some improvements to our sequence number
 generation.
 
 Thoughts?

What is OpenBSD like in this regard ?
AFAIR it has various algorithms for randomizing sequence numbers I think..
[Correct me if I'm wrong !]

- Cillian


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Re: On TCP sequence numbers

1999-08-20 Thread Cillian Sharkey
 Another question that comes in to this is - how good a tool is nmap
 for evaluating the predictability of the sequence numbers we generate?
 
 Ideally, I would like to do some improvements to our sequence number
 generation.
 
 Thoughts?

What is OpenBSD like in this regard ?
AFAIR it has various algorithms for randomizing sequence numbers I think..
[Correct me if I'm wrong !]

- Cillian


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with unsubscribe freebsd-hackers in the body of the message