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Subject: RE: Cygwin username
Date: Thu, 3 May 2007 10:39:42 -0400
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From: "Boffin, Stephane \(GE Infra, Aviation, Non-GE\)" <stephane DOT boffin AT ge DOT com>
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My windows username is boffin in the /etc/passwd I have 1 entry
makinohd:unused_by_nt/2000/xp:14966:10545:nhm1zjt,U-GEAECANADA\nhm1zjt,S
-1-5-21-2066620035-1092103790-1905203885-4966:/home:/bin/bash

When I get into the bash shell the user that is there is makinohd. (If I
do a whoami makinohd is returned)

 

-----Original Message-----
From: Igor Peshansky [mailto:pechtcha AT cs DOT nyu DOT edu] 
Sent: 3 mai 2007 10:33
To: Boffin, Stephane (GE Infra, Aviation, Non-GE)
Cc: cygwin AT cygwin DOT com
Subject: RE: Cygwin username

Ugh, top-posting...  Reformatted.

On Thu, 3 May 2007, Boffin, Stephane (GE Infra, Aviation, Non-GE) wrote:

> -----Original Message-----
> From: Igor Peshansky [mailto:pechtcha AT XX DOT XXX DOT XXX]
> Sent: 3 mai 2007 10:18
> To: Boffin, Stephane (GE Infra, Aviation, Non-GE)
> Cc: cygwin AT XXXXXX DOT XXX

<http://cygwin.com/acronyms/#PCYMTNQREAIYR>.  Thanks.

> Subject: Re: Cygwin username
>
> > On Thu, 3 May 2007, Boffin, Stephane (GE Infra, Aviation, Non-GE)
wrote:
> >
> > > Hello all,
> > >
> > > When you log into cygwin using a shell the username used is the 
> > > windows user name. I have a setup where I would like 10 users from

> > > 10 diffrent PC to have one username and 10 other using 10 other pc

> > > have an other.
> > >
> > > This is because I only want to manage 2 user name in the passwd
file.
> > >
> > > Is this possible ?
> > > And if yes how do I do that
> >
> > I don't believe it's possible.  First off, entries in /etc/passwd 
> > contain an SID that identifies the associated Windows user, so you'd

> > need to have one entry per Windows user anyway, or they will be 
> > unrecognized by Cygwin.
> >
> > You can have multiple entries in /etc/passwd with the same username,

> > but when Cygwin looks up a username, it stops at the first one, so 
> > anyone trying to log in with that username will be treated as the 
> > first matching user (and will need to enter the password for that
user).
> >
> > On the other hand, you can use the mkpasswd tool to manage your 
> > /etc/passwd file instead of doing it by hand.
> > 	Igor
>
> I do not want to use the mkpasswd because I have 500 user on the 
> network and only 6 - 10 will be using Cygwin.

Then take a look at the "-u" option to mkpasswd, and write a script to
only grab the users you want.  Similarly for mkgroup (with "-g").

> I tried to put only on entry in the /etc/passwd and cygwin uses this 
> user name but I do not know if this is a bug or a feature.
> I would of expected cygwin to send a authentication error ...???

Huh?  You'll need to expand on this.  What do you mean by "cygwin uses
this user name"?
	Igor
-- 
				http://cs.nyu.edu/~pechtcha/
      |\      _,,,---,,_	    pechtcha AT cs DOT nyu DOT edu |
igor AT watson DOT ibm DOT com
ZZZzz /,`.-'`'    -.  ;-;;,_		Igor Peshansky, Ph.D. (name
changed!)
     |,4-  ) )-,_. ,\ (  `'-'		old name: Igor Pechtchanski
    '---''(_/--'  `-'\_) fL	a.k.a JaguaR-R-R-r-r-r-.-.-.  Meow!

Freedom is just another word for "nothing left to lose"...  -- Janis
Joplin

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