Fwd: Re: SSHD fails to start - not responding in a timely fashion

Larry Hall (RFK Partners, Inc) lhall@rfk.com
Fri Mar 1 14:26:00 GMT 2002


I'm forwarding this to the list, with the original author's permission, so 
that it's in the archives.  I think Scott's results are interesting since 
they provide some real specific information on the services that are 
required to get sshd to function reliably.  While his original network 
configuration may be atypical, his findings, I think, are generally of 
interest to those that may have trouble getting sshd to work reliably
for them.


>Date: Fri, 1 Mar 2002 13:16:14 -0700 (MST)
>From: Scott Mulroy <scott@psynch.com>
>X-Sender: scott@bambam.m-tech.ab.ca
>To: "Larry Hall (RFK Partners, Inc)" <lhall@rfk.com>
>Subject: Re: SSHD fails to start - not responding in a timely fashion
>
>Hi Larry,
>
>I thought I'd let you know what we were able to accomplish.  I did enable
>the "Computer Browser" and "Server" services and then tried to start the
>sshd service.  It started up with minimal problems.  We had to tweak a
>"IRPStackSize" registry entry for the "Server" service and set
>"StrictModes" to "yes" in the sshd_config file, but we were able to start
>the sshd service and get it running properly eventually.
>
>While it's odd that this kind of thing needed to occur, I'll simply chalk
>it up to another Windows quirk and continue on.  Thanks for all your help!
>
>
>-- 
>Scott Mulroy
>Infrastructure Technology Consultant
>M-Tech Mercury Information Technology, Inc.
>
>Phone:  (403) 233-0740 ext 228
>Fax:    (403) 233-0725
>Email:  scott@psynch.com
>===================================================
>
>
>
>On Mon, 25 Feb 2002, Larry Hall (RFK Partners, Inc) wrote:
>
>->Date: Mon, 25 Feb 2002 12:03:17 -0500
>->From: "Larry Hall (RFK Partners, Inc)" <lhall@rfk.com>
>->To: Scott Mulroy <scott@psynch.com>
>->Cc: cygwin@cygwin.com
>->Subject: Re: SSHD fails to start - not responding in a timely fashion
>->
>->At 01:18 PM 2/23/2002, Scott Mulroy wrote:
>->>On Fri, 22 Feb 2002, Larry Hall (RFK Partners, Inc) wrote:
>->>
>->>->This strikes me like a service dependency issue.  There has been some 
>->>->discussion of this on the list.  You might want to look into this.  Because
>->>->services start in different sequences or require differing amounts of time
>->>->to start up on different machines, not specifying prerequisites can create
>->>->these undependable situations.  Sorry I don't have specific service dependency
>->>->suggestions for you here (beyond perhaps the browser) but you should find 
>->>->some in the email archive if you're interested.  Anyway, it's a possibility
>->>->you might want to investigate.
>->>->
>->>->Hope that helps,
>->>
>->>
>->>Thank you for the speedy response Larry!
>->>
>->>I'll investigate this possibility a little more.  One thing I should point
>->>out is that we have disabled the Computer Browser and Server services to
>->>allow for NetBios drive mappings across an ssh tunnel.  Perhaps those two
>->>are causing the grief?  It's odd though.  If that is the problem, how are
>->>the local machines I'm working on unaffected?  As I said in my earlier
>->>email, they're all built to spec.
>->
>->
>->That is a good question.  I don't know the answer unfortunately.  There have
>->been at least a few messages on this list that indicate the computer browser
>->is a dependency of SSHD for many people.  The most recent one is this 
>->morning:
>->
>->http://cygwin.com/ml/cygwin/2002-02/msg01191.html
>->
>->There's probably something more subtle going on there but it's not clear to me
>->what it is.
>->
>->
>->>I also don't think it's a matter of certain services not starting up in time.
>->>Many times during my efforts I've tried to start the sshd service and all the
>->>other services have had 30-60 minutes to start.  Perhaps this feedback may
>->>give you some insight into something more.  =)
>->
>->
>->Well, you can try checking your Event Viewer log for hints.  Nothing else
>->springs to mind, although others on this list that have experienced similar
>->issues may have more specific thoughts on this matter.
>->
>->
>->>I will try re-enabling the Computer Browser and Server services to see if
>->>I have any luck and I will continue to investigate further service
>->>dependencies.  If you have anything further or anyone else in your support
>->>department has any feedback, it would be greatly appreciated.
>->
>->
>->My support department is the Cygwin list! :-)  I'm sure if anyone on the
>->list has a good idea for you, they'll speak up if they haven't already in 
>->the past (in the archives).  I'm sure the list will be very interested to 
>->hear the results of your analysis though.  It is a problem experienced by 
>->some in the past and the resolution has always been related to some system 
>->service not starting as well.  However, I don't think anyone is clear on the 
>->complete list of service dependencies.  Any additional information you may 
>->find in this regard during your investigation would be most useful to others 
>->on the list moving forward.
>->
>->Good luck!
>->
>->
>->
>->Larry Hall                              lhall@rfk.com
>->RFK Partners, Inc.                      http://www.rfk.com
>->838 Washington Street                   (508) 893-9779 - RFK Office
>->Holliston, MA 01746                     (508) 893-9889 - FAX
>->


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