Date: Sat, 1 Jan 2011 13:46:53 -0500 (EST)
From: jegunn
Subject: Re: 2.5m obslog 20101231 (MJD 55562)
I have run into these problems with recent openssh installations with
only two machines doing nothing on a private network. The culprit(s)
seem to be trying to establish GSSAPI authentication when none is
available, and reverse DNS lookup. They can both be disabled in the
configuration files.
--jim
On Sat, 1 Jan 2011, Fritz Stauffer wrote:
>
> On Jan 1, 2011, at 4:35 AM, Dan Oravetz wrote:
>
>>
>> Steph's laptop could not connect to STUI again. Neither could the laptop at
>> the telescope. Furthermore, it now takes about fifteen seconds to do a
>> "loadCart" from STUI and ssh'ing to any other computer takes longer than it
>> used to. Fritz and/or Jon, could you please look into these problems? They are
>> new since Fritz's work on the network.
>
> There's not enough information to understand the problem with the latencies.  For example, landru is on the 2.5m private network, and the latencies are low to anywhere else on the site.  The users and their laptops are now on the user private network, and the ssh to machines outside the user network seems to take too long, about 5 seconds.  I suspect you are talking about logging in from the user network to hub25m, sdsshost2, etc.  It would help to give the machines involved.
>
> I have looked at this problem, and it does not appear to be the way the user private network is setup because it is identical.  I need to come up to the site to further debug the longer than usual logins from the user network to non-user network machines.
>
> As for Steph's laptop, what does the /etc/hosts file look like?  When the laptop is failing to connect, Jon or I need to get our hands on her laptop when it is not connecting to STUI.
>
>
>
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