[OmniOS-discuss] strangeness ssh into omnios from oi_151a9

Richard PALO richard at netbsd.org
Wed Sep 30 07:56:47 UTC 2015


Le 29/09/15 12:35, Lauri Tirkkonen a écrit :
> On Tue, Sep 29 2015 12:19:09 +0200, Richard PALO wrote:
>> Since I'm not having any issues with netbsd (6.1), which seemingly is still
>> at rfc1323
>>> richard at omnis:/home/richard$ ssh netbsd.org /sbin/sysctl net.inet.tcp.rfc1323
>>> net.inet.tcp.rfc1323 = 1
>>
>> I'd like to do some additional tests involving a non-illumos host as well
>> just to make sure.
>
> To be clear, it's not implementing RFC 1323 (and not even *not*
> implementing 7323) that causes the issue. 1323 actually didn't specify
> what to do with non-timestamped segments on a timestamp-negotiated
> connection, and illumos pre-5850 did something very surprising which I
> doubt nobody else did (stop generating timestamps on all future
> segments), so I don't think you will be able to reproduce the hang with
> other operating systems, but you'll likely be able to see the unexpected
> non-timestamped segments in connections between other OSes as well (but
> I still can't be sure because I don't know what middlebox is injecting
> them or why :)
>

In that case, wouldn't setting tcp_tstamp_always on OI to '1' be better 
in this case (or would OI not honour that setting correctly)?


More information about the OmniOS-discuss mailing list