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Mail Archives: cygwin/2011/02/10/07:11:50

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Date: Wed, 09 Feb 2011 20:04:44 -0500
From: Gerry Reno <greno AT verizon DOT net>
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To: cygwin AT cygwin DOT com
Subject: Re: 1.7.7: after upgrade lost ability to login via ssh
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On 02/09/2011 07:21 PM, Gerry Reno wrote:
> On 02/09/2011 06:43 PM, Larry Hall (Cygwin) wrote:
>   
>> On 2/9/2011 5:56 PM, Gerry Reno wrote:
>>     
>>> On 02/09/2011 05:35 PM, Larry Hall (Cygwin) wrote:
>>>       
>>>> On 2/9/2011 5:07 PM, Gerry Reno wrote:
>>>>         
>>>>> On 02/09/2011 04:56 PM, Gerry Reno wrote:
>>>>>           
>>>>>> On 02/08/2011 11:07 PM, Larry Hall (Cygwin) wrote:
>>>>>>
>>>>>>             
>>>>>>> On 2/8/2011 9:14 PM, Gerry Reno wrote:
>>>>>>>
>>>>>>>               
>>>>>>>> Something else I just discovered after upgrading to 1.7.7 is that
>>>>>>>> I now
>>>>>>>> have lost the ability to login via ssh.
>>>>>>>>
>>>>>>>> I have OpenSSH installed and running sshd as a service.  Both
>>>>>>>> password
>>>>>>>> and keys accepted.  But now neither means will work.
>>>>>>>>
>>>>>>>>        # ssh -i keypair1.pem   Administrator AT MACHINE_IP
>>>>>>>>        Last login: Fri Feb  4 17:19:26 2011 from
>>>>>>>> LOCAL_CLIENT_MACHINE
>>>>>>>>        Connection to MACHINE_IP closed.
>>>>>>>>
>>>>>>>>
>>>>>>>> So I increased verbosity but did not see anything obvious.
>>>>>>>>
>>>>>>>>
>>>>>>>>        # ssh -v -i keypair1.pem   Administrator AT MACHINE_IP
>>>>>>>>        OpenSSH_5.2p1, OpenSSL 0.9.8k-fips 25 Mar 2009
>>>>>>>>        debug1: Reading configuration data /etc/ssh/ssh_config
>>>>>>>>        debug1: Applying options for *
>>>>>>>>        debug1: Connecting to MACHINE_IP [MACHINE_IP] port 22.
>>>>>>>>        debug1: Connection established.
>>>>>>>>        debug1: permanently_set_uid: 0/0
>>>>>>>>        debug1: identity file keypair1.pem type -1
>>>>>>>>        debug1: Remote protocol version 2.0, remote software version
>>>>>>>> OpenSSH_5.8
>>>>>>>>
>>>>>>>>                 
>>>>>>> Does reverting OpenSSH to 5.7 make a difference?
>>>>>>>
>>>>>>>
>>>>>>>               
>>>>>> Downgraded to 5.7:
>>>>>>
>>>>>>       bash-4.1$ sshd --version
>>>>>>       sshd: unknown option -- -
>>>>>>       OpenSSH_5.7p1, OpenSSL 0.9.8r 8 Feb 2011
>>>>>>
>>>>>>
>>>>>>             
>>>>>>>  From client:
>>>>>>>               
>>>>>>       ssh -i keypair1.pem   Administrator AT MACHINE_IP
>>>>>>       Last login: Wed Feb  9 12:54:08 2011 from LOCAL_CLIENT_IP
>>>>>>       Connection to MACHINE_IP closed.
>>>>>>
>>>>>>
>>>>>> Nope.  Still have the same problem.  Connection is made but
>>>>>> immediately
>>>>>> closes.
>>>>>>
>>>>>>
>>>>>>
>>>>>>             
>>>>> I'm suspecting this is related to running Cygwin 1.7.
>>>>>
>>>>> In looking back though some notes I started having bash shell problems
>>>>> after upgrading from 1.5 to 1.7.
>>>>>
>>>>> Now on 1.7 if I try to run bash as a login shell it just gets "Bad
>>>>> address" or segfault errors and immediately exits the shell which also
>>>>> probably affects 'ssh'.
>>>>>
>>>>> I don't remember having any bash problems when I was running Cygwin
>>>>> 1.5
>>>>> on this machine.  My notes reflect screen copies showing bash able to
>>>>> run as a login shell without any problem.
>>>>>           
>>>> Yep, that's the way we all run by default (see cygwin.bat).  I agree
>>>> that if you're having problems getting bash to behave, it's best to
>>>> focus
>>>> on that issue first.  Your ssh problems may just be another symptom of
>>>> the same thing.  How about sending cygcheck output
>>>> (<http://cygwin.com/problems.html>)?  There may be something helpful in
>>>> that which someone on the list might pick up on.
>>>>
>>>>         
>>> Ok, ran a new cygcheck and attached it.
>>>       
>> OK, thanks.  What went wrong with the first installation?
>>
>> I notice that this is using TS.  Can you try experiment with this machine
>> locally?  Or perhaps just try:
>>
>> <http://cygwin.com/faq-nochunks.html#faq.setup.setup-fails-on-ts>
>>
>>     
> I reduced DEP down to just Windows executables and dlls and then rebooted.
>
> And it actually seemed to make the problem worse:
>
>     bash-4.1$ (for p in $(ls /etc/profile.d/*.sh);do . $p;done)
>     bash-4.1$ (for p in $(ls /etc/profile.d/*.sh);do . $p;done)
>     bash-4.1$ (for p in $(ls /etc/profile.d/*.sh);do . $p;done)
>     bash: /etc/profile.d/lapack0.sh: Bad address
>     bash-4.1$ (for p in $(ls /etc/profile.d/*.sh);do . $p;done)
>     bash-4.1$ (for p in $(ls /etc/profile.d/*.sh);do . $p;done)
>     bash-4.1$ (for p in $(ls /etc/profile.d/*.sh);do . $p;done)
>     bash: /etc/profile.d/lapack0.sh: Bad address
>     bash-4.1$ (for p in $(ls /etc/profile.d/*.sh);do . $p;done)
>     bash: /etc/profile.d/lapack0.sh: Bad address
>     bash-4.1$ (for p in $(ls /etc/profile.d/*.sh);do . $p;done)
>     bash: /etc/profile.d/lapack0.sh: Bad address
>     bash-4.1$ (for p in $(ls /etc/profile.d/*.sh);do . $p;done)
>     bash: /etc/profile.d/lapack0.sh: Bad address
>     bash-4.1$ (for p in $(ls /etc/profile.d/*.sh);do . $p;done)
>     bash-4.1$ (for p in $(ls /etc/profile.d/*.sh);do . $p;done)
>     bash: /etc/profile.d/lapack0.sh: Bad address
>     bash-4.1$ (for p in $(ls /etc/profile.d/*.sh);do . $p;done)
>     bash-4.1$ (for p in $(ls /etc/profile.d/*.sh);do . $p;done)
>     bash: /etc/profile.d/lapack0.sh: Bad address
>     bash-4.1$ (for p in $(ls /etc/profile.d/*.sh);do . $p;done)
>     bash: /etc/profile.d/lapack0.sh: Bad address
>     bash-4.1$ (for p in $(ls /etc/profile.d/*.sh);do . $p;done)
>     bash-4.1$ (for p in $(ls /etc/profile.d/*.sh);do . $p;done)
>     bash-4.1$ (for p in $(ls /etc/profile.d/*.sh);do . $p;done)
>     bash-4.1$ (for p in $(ls /etc/profile.d/*.sh);do . $p;done)
>     bash: /etc/profile.d/lapack0.sh: Bad address
>     bash-4.1$
>
>
> So DEP in is play here but sort of inverse from what I'd expect.  There
> was no switch now to totally disable it.  I guess they want you to
> fiddle with the registry to turn it all the way off.
>
>
>   
I tried reinstalling bash and coreutils which installed ok but both
their postinstall scripts have an abnormal exit 128 which is exactly
what I was seeing previously.


Regards,
Gerry


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