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Subject: Re: AutoSSH problem
To: cygwin AT cygwin DOT com, =?UTF-8?Q?Ren=c3=a9_Berber?= <rene DOT berber AT gmail DOT com>
References: <1527971948 DOT 18809 DOT ezmlm AT cygwin DOT com>
From: Germain Le Chapelain <german AT lanvaux DOT fr>
Message-ID: <41cd0c5f-4819-0c14-dde5-a1bea7a1030a@lanvaux.fr>
Date: Sat, 2 Jun 2018 19:30:23 +0000
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On 06/01/18 23:03, René Berber wrote:
> The behavior looks normal.
>
> Quoting from the autossh man page:
>
> "Startup behaviour
>
> If the ssh session fails with an exit status of 1 on the very first try,
> autossh
>
> 1.' will assume that there is some problem with syntax or the connection
> setup, and will exit rather than retrying;
>
> 2.' There is a "starting gate" time. If the first ssh process fails
> within the first few seconds of being started, autossh assumes that it
> never made it "out of the starting gate", and exits. This is to handle
> initial failed authentication, connection, etc. This time is 30 seconds
> by default, and can be adjusted (see the AUTOSSH_GATETIME environment
> variable below). If AUTOSSH_GATETIME is set to 0, then both behaviours
> are disabled: there is no "starting gate", and autossh will restart even
> if ssh fails on the first run with an exit status of 1. The "starting
> gate" time is also set to 0 when the -f flag to autossh is used. "

Thank you for highlighting this point, René.

You are right: it "looks" normal, from far :)

However, looking closer to the log, you should see (or not, looking back 
at it it's not obvious) that I halted the connection the server about 
three minutes in:

> 2018/06/01 13:17:41 autossh[20680]: set alarm for 600 secs
> Connection to lanvaux.fr closed by remote host.
> 2018/06/01 13:20:52 autossh[20680]: check on child 4988

So something still doesn't line up. :/

I may try my dumpo-magic (I think it's actually called "DebugDiag", 
https://blogs.msdn.microsoft.com/chaun/2013/11/12/steps-to-catch-a-simple-crash-dump-of-a-crashing-process/)

But as said earlier it's probably going to poop (no pun intended) about 
AutoSSH being a cygwin program.


I will take a read on how debugging goes on Cygwin, or look at AutoSSH 
1.4e (and how to get it.)


Kindest regards,

Thank you for your answer!


-- 
Germain Le Chapelain
Lanvaux Computer Games Limited
http://lanvaux.fr


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