This is the mail archive of the
cygwin
mailing list for the Cygwin project.
Re: ssh ceased to work after recreation of /etc/passwd
- From: Larry Hall <lh-no-personal-replies-please at cygwin dot com>
- To: <FischRon dot external at infineon dot com>, <cygwin at cygwin dot com>
- Date: Mon, 11 Jul 2005 15:07:03 -0400
- Subject: Re: ssh ceased to work after recreation of /etc/passwd
- References: <25F7D2213F14794A8767B88203EA2BC9240CA6@mucse201.eu.infineon.com>
- Reply-to: Cygwin List <cygwin at cygwin dot com>
At 06:00 AM 7/11/2005, you wrote:
>Due to various problems on my system, I have recreated /etc/group and
>/etc/passwd by
>
> mkpasswd -l -c >/etc/passwd
> mkgroup -l -c >/etc/group
>
>Now ssh does not work anymore: I always get the error message
>
> "You don't exist, go away!"
>
>The error occurs only in Cygwin windows which I opened *after* I had
>recreated
>passwd and group. By comparing what the working and the non-working
>case, I see
>that by recreating /etc/passwd, my uid had changed:
>
># Before recreating /etc/passwd
>$ id
>uid=400(fischron) gid=401(mkpasswd)
>groups=544(Administrators),545(Users),10513(mkgroup_l_d),401(mkpasswd)
>
># After recreating /etc/passwd
>$ id
>uid=121833(fischron) gid=10513(mkgroup_l_d)
>groups=544(Administrators),545(Users),10513(mkgroup_l_d)
>
>I guess that the change in uid causes ssh to not to recognize me
>anymore.
>
>What's the best way to deal with this situation? Do I have to recreate
>id_rsa
>and id_rsa.pub (and redistribute my public key to all sites I need
>access to)?
The above error occurs in ssh-keygen.c when getpwuid(getuid) fails. It
appears Cygwin still thinks of you as uid 400. Just try stopping all
Cygwin shells and services and then restarting (via cygwin.bat). You'll
probably find that you need to change the ownership of files in your home
directory (at least) to enable public key authentication again.
--
Larry Hall http://www.rfk.com
RFK Partners, Inc. (508) 893-9779 - RFK Office
838 Washington Street (508) 893-9889 - FAX
Holliston, MA 01746
--
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
Problem reports: http://cygwin.com/problems.html
Documentation: http://cygwin.com/docs.html
FAQ: http://cygwin.com/faq/