ssh login to cygwin bash?

ssh login to cygwin bash?

[Ulli Horlacher]

I have installed cygwin openssh and the sshd is running.
When I log in, I get a "DOS shell":

~: uname -a
CYGWIN_NT-6.1 WIN-LS0QDOSDIBL 2.10.0(0.325/5/3) 2018-02-02 15:21 i686 Cygwin
~: ssh localhost
admin@localhost's password:

C:\users\admin>



But I want bash as login shell. How can I configure cygwin sshd for that?


-- 
Ullrich Horlacher              Server und Virtualisierung
Rechenzentrum TIK         
Universitaet Stuttgart         E-Mail: horlacher@tik.uni-stuttgart.de
Allmandring 30a                Tel:    ++49-711-68565868
70569 Stuttgart (Germany)      WWW:    http://www.tik.uni-stuttgart.de/
REF:<20180329142411.GZ12560@rus.uni-stuttgart.de>

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Re: ssh login to cygwin bash?

[Erik Soderquist]

On Thu, Mar 29, 2018 at 10:24 AM, Ulli Horlacher wrote:
>
> I have installed cygwin openssh and the sshd is running.
> When I log in, I get a "DOS shell":
>
> ~: uname -a
> CYGWIN_NT-6.1 WIN-LS0QDOSDIBL 2.10.0(0.325/5/3) 2018-02-02 15:21 i686 Cygwin
> ~: ssh localhost
> admin@localhost's password:
>
> C:\users\admin>

I would actually like to know how you managed this, as I have a couple
use cases where this is what I do need...


> But I want bash as login shell. How can I configure cygwin sshd for that?

This is what I get on all of my cygwin setups where I've installed
sshd.  Do you have mintty installed?


-- Erik

--
"I do not think any of us are truly sane, Caleb. Not even you. Courage
is not sanity. Being willing to die for someone else is not sanity."
... "Love is not sane, nor is faith." ... "If sanity lacks those
things, Caleb, I want no part of it."

-- Alexandria Terri in "Weaving the Wyvern" by Alexis Desiree Thorne

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Re: ssh login to cygwin bash?

[Andrey Repin]

Greetings, Ulli Horlacher!

> I have installed cygwin openssh and the sshd is running.
> When I log in, I get a "DOS shell":

> ~: uname -a
> CYGWIN_NT-6.1 WIN-LS0QDOSDIBL 2.10.0(0.325/5/3) 2018-02-02 15:21 i686 Cygwin
> ~: ssh localhost
> admin@localhost's password:

> C:\users\admin>


> But I want bash as login shell. How can I configure cygwin sshd for that?

ssh -vv
I'm not sure you actually connect to Cygwin SSHD.
Even if you do, check the user's assigned shell.

getent passwd $USER


-- 
With best regards,
Andrey Repin
Thursday, March 29, 2018 22:27:07

Sorry for my terrible english...


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Re: ssh login to cygwin bash?

[Ulli Horlacher]

On Thu 2018-03-29 (13:00), Erik Soderquist wrote:
> On Thu, Mar 29, 2018 at 10:24 AM, Ulli Horlacher wrote:
> 
> >
> > I have installed cygwin openssh and the sshd is running.
> > When I log in, I get a "DOS shell":
> >
> > ~: uname -a
> > CYGWIN_NT-6.1 WIN-LS0QDOSDIBL 2.10.0(0.325/5/3) 2018-02-02 15:21 i686 Cygwin
> > ~: ssh localhost
> > admin@localhost's password:
> >
> > C:\users\admin>
> 
> I would actually like to know how you managed this, as I have a couple
> use cases where this is what I do need...

I have just installed the openssh cygwin package (via setup). That's it.


> > But I want bash as login shell. How can I configure cygwin sshd for that?
> 
> This is what I get on all of my cygwin setups where I've installed
> sshd.  Do you have mintty installed?

Yes.


-- 
Ullrich Horlacher              Server und Virtualisierung
Rechenzentrum TIK         
Universitaet Stuttgart         E-Mail: horlacher@tik.uni-stuttgart.de
Allmandring 30a                Tel:    ++49-711-68565868
70569 Stuttgart (Germany)      WWW:    http://www.tik.uni-stuttgart.de/
REF:<CACoZoo3dtAvb1FpGfYB6FguJZRFOohTiguxPo-Zn1DkRTVi7aA@mail.gmail.com>

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Re: ssh login to cygwin bash?

[Brian Inglis]

On 2018-03-29 11:00, Erik Soderquist wrote:
> On Thu, Mar 29, 2018 at 10:24 AM, Ulli Horlacher wrote:
>>
>> I have installed cygwin openssh and the sshd is running.
>> When I log in, I get a "DOS shell":
>>
>> ~: uname -a
>> CYGWIN_NT-6.1 WIN-LS0QDOSDIBL 2.10.0(0.325/5/3) 2018-02-02 15:21 i686 Cygwin
>> ~: ssh localhost
>> admin@localhost's password:
>>
>> C:\users\admin>
> 
> I would actually like to know how you managed this, as I have a couple
> use cases where this is what I do need...

W10 Developer mode installs and enables minimal MS SSH server for Settings
"Device discovery" mDNS service "SSDP Discovery", also "SSH Server Broker", and
"SSH Server Proxy" services.
Enable/disable them to affect MS W10 SSH server.
In Developer mode you may also have optional Features you can add for OpenSSH
Server and OpenSSH Client.

W10 SSH can connect to WSL bash: web search for "W10 SSH WSL bash".

> This is what I get on all of my cygwin setups where I've installed
> sshd.  Do you have mintty installed?

Base Cygwin package always installed.

-- 
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada

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Re: ssh login to cygwin bash?

[Marco Atzeri]

On 29/03/2018 21:35, Ulli Horlacher wrote:
> On Thu 2018-03-29 (13:00), Erik Soderquist wrote:
>> On Thu, Mar 29, 2018 at 10:24 AM, Ulli Horlacher wrote:
>>
>>>
>>> I have installed cygwin openssh and the sshd is running.
>>> When I log in, I get a "DOS shell":
>>>
>>> ~: uname -a
>>> CYGWIN_NT-6.1 WIN-LS0QDOSDIBL 2.10.0(0.325/5/3) 2018-02-02 15:21 i686 Cygwin
>>> ~: ssh localhost
>>> admin@localhost's password:
>>>
>>> C:\users\admin>
>>
>> I would actually like to know how you managed this, as I have a couple
>> use cases where this is what I do need...
> 
> I have just installed the openssh cygwin package (via setup). That's it.
> 

to have cygwin openssh server active you need
after the installation of the openssh package:

- run /usr/bin/ssh-host-config to configure sshd the service
- start the service with "cygrunsrv -S sshd"

as it seems you have not done so, likely you have another
ssh server than cygwin one running on your pc.

Regards
Marco






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Re: ssh login to cygwin bash?

[Brian Inglis]

On 2018-03-29 13:35, Ulli Horlacher wrote:
> On Thu 2018-03-29 (13:00), Erik Soderquist wrote:
>> On Thu, Mar 29, 2018 at 10:24 AM, Ulli Horlacher wrote:
>>> I have installed cygwin openssh and the sshd is running.
>>> When I log in, I get a "DOS shell":
>>> ~: uname -a
>>> CYGWIN_NT-6.1 WIN-LS0QDOSDIBL 2.10.0(0.325/5/3) 2018-02-02 15:21 i686 Cygwin
>>> ~: ssh localhost
>>> admin@localhost's password:
>>> C:\users\admin>
> I have just installed the openssh cygwin package (via setup). That's it.
>>> But I want bash as login shell. How can I configure cygwin sshd for that?

W10 Developer mode installs and enables minimal MS SSH server for Settings
"Device discovery" mDNS service "SSDP Discovery", also "SSH Server Broker", and
"SSH Server Proxy" services.
Enable/disable them to affect MS W10 SSH server.
In Developer mode you also have Optional Features you can add for OpenSSH
Server and OpenSSH Client.

To connect to Cygwin sshd, disable W10 SSH services as above, uninstall SSH
Optional Features, and in Settings disable Device discovery to stop mDNS.

Then log in under your user account admin and start Cygwin mintty/bash to set up
your Cygwin environment for that user, and in an elevated mintty/bash session,
run ssh-host-config script and answer the questions (normally take the defaults)
to set up sshd as a Windows service running under the cygrunsrv daemon wrapper.

-- 
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada

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Re: ssh login to cygwin bash?

[Erik Soderquist]

On Thu, Mar 29, 2018 at 4:17 PM, Brian Inglis wrote:
>> I would actually like to know how you managed this, as I have a couple
>> use cases where this is what I do need...
>
> W10 Developer mode installs and enables minimal MS SSH server for Settings
> "Device discovery" mDNS service "SSDP Discovery", also "SSH Server Broker", and
> "SSH Server Proxy" services.
> Enable/disable them to affect MS W10 SSH server.
> In Developer mode you may also have optional Features you can add for OpenSSH
> Server and OpenSSH Client.
>
> W10 SSH can connect to WSL bash: web search for "W10 SSH WSL bash".

That assumes W10 is even an option, and that is not always the case,
especially in legacy-required environments

>> This is what I get on all of my cygwin setups where I've installed
>> sshd.  Do you have mintty installed?
>
> Base Cygwin package always installed.

I have come across mintty somehow not installed before, so I ask.

-- Erik

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Re: ssh login to cygwin bash?

[Ulli Horlacher]

On Thu 2018-03-29 (22:21), Marco Atzeri wrote:

> as it seems you have not done so, likely you have another
> ssh server than cygwin one running on your pc.

Late feedback: this was the case!
Thanks for the hint!
I have now disabled the foreign sshd, reinstalled cygwin openssh server,
opened port 22 in the Windows firewall and have now a bash after ssh login!


-- 
Ullrich Horlacher              Server und Virtualisierung
Rechenzentrum TIK         
Universitaet Stuttgart         E-Mail: horlacher@tik.uni-stuttgart.de
Allmandring 30a                Tel:    ++49-711-68565868
70569 Stuttgart (Germany)      WWW:    http://www.tik.uni-stuttgart.de/
REF:<0f72caba-7015-dcf7-069a-c3969eaa1a78@gmail.com>

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