TCP

Julian Elischer julian at freebsd.org
Sun Oct 3 03:02:31 UTC 2010


  On 10/2/10 2:15 PM, Andre Oppermann wrote:
> On 02.10.2010 11:47, Jordi Espasa Clofent wrote:
>> Hi all,
>>
>> I've read this interesting article:
>> http://www.packetstan.com/2010/09/openbsd-timestamps.html
>>
>> The question is simple
>>
>> ¿Is there some way in FreeBSD to randomize the TCP timestamps as 
>> OpenBSD does by default? I guess
>> some sysctl statement should do it, but I don't know.
>
> The timestamps on FreeBSD for passive open are randomized as
> long as you use SYN cookies (enabled by default).  For passive
> open they are not (yet) randomized.

which one of those 'passive' is supposed to be 'active'?




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