Re: ssh-host-config doesn't "inherit" user admin privilege

2021-01-15 Thread Bill Stewart
On Thu, Jan 14, 2021 at 6:21 PM art wrote:
>
> I get a security code 5 when ssh-host-config tries to install cygsshd. I was 
> logged into Win 10 pro/x64 as an admin user. The "fix" was to start a 
> Cygwin64 Terminal with Admin and then run ssh-host-config within this script. 
> Other installers have produced the same nuisance. These needed an admin 
> command prompt to get around the same "inheritance" limitation.

Are you asking a question or reporting a problem?

It sounds like you are confusing logging on using an admin user (i.e.,
a user that's a member of the local Administrators group) with
elevation (a process that runs using full administrative privileges).

Bill
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Re: Need admin privs before something can inherit them (was Re: ssh-host-config doesn't "inherit" user admin privilege)

2021-01-14 Thread Brian Inglis via Cygwin

On 2021-01-14 19:55, art wrote:
On Thursday, January 14, 2021 6:05 PM,  L A Walsh wrote: 

On 2021/01/14 17:21, art wrote:
I get a security code 5 when ssh-host-config tries to install cygsshd. I 
was logged into Win 10 pro/x64 as an admin user. The "fix" was to start a

Cygwin64 Terminal with Admin and then run ssh-host-config within this script.



You say ssh-host-config tries to install cygsshd.  How was ssh-host-config
called (started)?  When Cygwin64 Terminal was run, it was run with Admin
at the start.  Was that done when ssh-host-config was run?

How was it run?


Yes, I did a right-click on the cygwin terminal icon and chose a "run as 
administrator" option. This is like doing a sudo to start a linux shell... 
everything run in the shell inherits "admin"/"root" as appropriate. Followed

by using this shell to do:

cd /usr/bin
./ssh-host-config

I entered 'yes' responses to the various setup questions including yes to 
privileged separation. I never bumped into this sort of inheritance problem 
in Windows 7 and earlier. Seems to be a Windows 10 "feature". This past week

 I ran into the same problem using an Intel supplied command script to
install their hydra_mpi server. Another knowledgeable Windows 10 user reports
he, too, has encountered this issue.


It's been years but I don't remember anything being different under Win 7, for 
"non-native" Windows programs that are not prepared to handle elevation, whereas 
Cygwin setup is and does.


After installation I do some local tweaks to sshd_config such as disablng 
plain-text password logins. I'm able to succesfully connect using ssh/sftp 
from other platforms to this system using public key authentication. Windows

is configured to autostart cygsshd.

I can add that I previously added C:\cygwin64 to the list of Windows
Defender exceptions.


You always had to start cmd or bash with Run as Admin to run anything elevated 
e.g. C:\cygwin64\bin\bash /bin/script.


Similarly in Windows scheduled tasks: Run as SYSTEM, whether logged in or not, 
Do not store password, with highest privileges.


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

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RE: Need admin privs before something can inherit them (was Re: ssh-host-config doesn't "inherit" user admin privilege)

2021-01-14 Thread art
Yes, I did a right-click on the cygwin terminal icon and chose a "run as 
administrator" option. This is like doing a sudo to start a linux shell... 
everything run in the shell inherits "admin"/"root" as appropriate. Followed by 
using this shell to do:

cd /usr/bin
./ssh-host-config

I entered 'yes' responses to the various setup questions including yes to 
privileged separation. I never bumped into this sort of inheritance problem in 
Windows 7 and earlier. Seems to be a Windows 10 "feature". This past week I ran 
into the same problem using an Intel supplied command script to install their 
hydra_mpi server. Another knowledgeable Windows 10 user reports he, too, has 
encountered this issue.

After installation I do some local tweaks to sshd_config such as disablng 
plain-text password logins. I'm able to succesfully connect using ssh/sftp from 
other platforms to this system using public key authentication. Windows is 
configured to autostart cygsshd.

I can add that I previously added C:\cygwin64 to the list of Windows Defender 
exceptions.

Yes, I used to do a lot of work on Control Data Cyber205s, ETA-10s and Cray 
C90s. Practically speaking vector operations can make effective use of memory 
bandwidth.
In other words, a vector a day keeps the scalars away! 

Regards,

Art

-Original Message-
From: L A Walsh [mailto:cyg...@tlinx.org] 
Sent: Thursday, January 14, 2021 6:05 PM
To: art
Cc: 'cygwin@cygwin.com'
Subject: Need admin privs before something can inherit them (was Re: 
ssh-host-config doesn't "inherit" user admin privilege)

On 2021/01/14 17:21, art wrote:
> I get a security code 5 when ssh-host-config tries to install cygsshd. I was 
> logged into Win 10 pro/x64 as an admin user. The "fix" was to start a 
> Cygwin64 Terminal with Admin and then run ssh-host-config within this script. 
You say ssh-host-config tries to install cygsshd.  How was ssh-host-config
called (started)?  When Cygwin64 Terminal was run, it was run with Admin
at the start.  Was that done when ssh-host-config was run?

How was it run?

unrelated...:
> Veni, vidi, vectori! @1976, 2021
>   
---
You like vectoring, I take it?  :-)?
Cheers!
Linda
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Need admin privs before something can inherit them (was Re: ssh-host-config doesn't "inherit" user admin privilege)

2021-01-14 Thread L A Walsh

On 2021/01/14 17:21, art wrote:
I get a security code 5 when ssh-host-config tries to install cygsshd. I was logged into Win 10 pro/x64 as an admin user. The "fix" was to start a Cygwin64 Terminal with Admin and then run ssh-host-config within this script. 

You say ssh-host-config tries to install cygsshd.  How was ssh-host-config
called (started)?  When Cygwin64 Terminal was run, it was run with Admin
at the start.  Was that done when ssh-host-config was run?

How was it run?

unrelated...:

Veni, vidi, vectori! @1976, 2021
  

---
You like vectoring, I take it?  :-)?
Cheers!
Linda
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ssh-host-config doesn't "inherit" user admin privilege

2021-01-14 Thread art
I get a security code 5 when ssh-host-config tries to install cygsshd. I was 
logged into Win 10 pro/x64 as an admin user. The "fix" was to start a Cygwin64 
Terminal with Admin and then run ssh-host-config within this script. Other 
installers have produced the same nuisance. These needed an admin command 
prompt to get around the same "inheritance" limitation.

Art

**
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