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Date: Wed, 21 Jul 2004 10:22:08 +0200
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: BUG: ssh.exe ProtocolKeepAlives option broken
Message-ID: <20040721082208.GC21800@cygbert.vinschen.de>
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References: <410730CA DOT 9020701 AT hot DOT ee>
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On Jul 28 07:51, Float wrote:
> |>Summary: Cygwin ssh.exe doesn't accept the 'ProtocolKeepAlives' option
> |>
> |>Example:
> |>C:\sshclient>ssh -o ProtocolKeepAlives=180 example.com
> |>command-line: line 0: Bad configuration option: ProtocolKeepAlives
> |
> |AFAICT, ProtocolKeepAlives is not mentioned in the manpage for ssh.
> |So, this isn't a bug.
> 
> Indeed, it seems that it is not mentioned in the Cygwin ssh_config manpage.
> 
> However, that option should be supported according to the following 
> Corinna Vinschen mail:
> http://sources.redhat.com/ml/cygwin/2002-01/msg00323.html
> 
> Btw, the ProtocolKeepAlives is a must for using ssh for port forwarding
> behind a firewall that drops inactive connections.

ProtocolKeepAlives has been dropped a couple of OpenSSH versions before.
See `man sshd_config' for ClientAliveInterval and ClientAliveCountMax,
`man ssh_config' for ServerAliveInterval and ServerAliveCountMax, or
both for TCPKeepAlive.


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Co-Project Leader          mailto:cygwin AT cygwin DOT com
Red Hat, Inc.

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