Re: openssh 3.8p1 connect timeouts

From: Darren Dunham (ddunham_at_redwood.taos.com)
Date: 03/25/04

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    Date: Wed, 24 Mar 2004 23:01:38 GMT

    M Bowman <mic_bowman at yahoo.com> wrote:
    > i'm trying to write some scripts that automate program execution on a large
    > number of planetlab machines across the internet... it is not uncommon for
    > the sshd on those machines to end up in a weird state (e.g. accepting
    > connections but no banner). i've played around with all of the various
    > timeout configuration variables in the open ssh client, but still can't get
    > ssh to die gracefully under those circumstances. the obvious solution is to
    > add a timeout to the wrapper (which i have done), but the granularity of the
    > timeout is pretty large (some of the remote apps take a while to run) so i'd
    > rather have ssh just tell me that it couldn't connect. any ideas????

    But above, you say that ssh does accept connections.

    It sounds to me like ssh is okay but the shell is having problems
    starting. Are you sure its an sshd issue? Can you generate a '-v'
    output of a connection attempt to see where it's hanging?

    SSH is able to quickly return if the connection fails, but I suspect
    that the connection is succeeding and some later portion of the
    communication is hanging. 

    -- 
Darren Dunham                                           ddunham@taos.com
Senior Technical Consultant         TAOS            http://www.taos.com/
Got some Dr Pepper?                           San Francisco, CA bay area
         < This line left intentionally blank to confuse you. >
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