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Subject: Re: Permissions problem - odd setup
Date: Tue, 21 Feb 2006 18:16:38 +0100
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Andrew DeFaria wrote:
> Eric Blake wrote:
> >>>> I have a somewhat odd setup here and am having a permissions
> >>>> problem with my userid and authentication.
> >>>>
> >>>> In general I'm trying to have one home directory that is shared
> >>>> between Windows and Linux. On Windows I use Cygwin. Normally this
> >>>> involves mounting my Windows oriented home directory and proper
> >>>> generation of my domain userid in /etc/passwd. Here things are a
> >>>> bit different.
> >>>>
> >>>> My home directory here is on a Linux box running Samba. I login as
> >>>> <domain>\defaria on my Windows box. I have generated my
> >>>> /etc/password entry with mkpasswd -d -u defaria > /etc/passwd.
> >>>> However the Linux box running Samba does not participate in a
> >>>> domain rather it is using
> >>>> a workgroup.
> >
> > I don't have access to a Samba mount point, so maybe my advice won't
> > help much, but here goes anyways.
> >
> >>>> The symptoms that I see are as follows:
> >>>>
> >>>> While I can create a file in my home directory I cannot edit it -
> >>>> access denied:
> >>>>
> >>>> $ cp opts.cfg opts.cfg.new
> >>>> cp: cannot create regular file `opts.cfg.new': Permission denied
> >>>> $ ls -l opts.cfg*
> >>>> -rw-rw-r-- 1 ???????? ???????? 98 Feb 14 11:17 opts.cfg
> >>>> -rwxr--r-- 1 ???????? ???????? 0 Feb 15 16:01 opts.cfg.new*
> >>>>
> >>>> You'll note that the uid and gid is not correct.
> >
> > First, have you run mkpasswd and mkgroup to create valid /etc/passwd
> > and /etc/group files? Without a valid user database, cygwin gets lost
> > when trying to check/display/modify permissions of an unknown user.
> >
> > http://cygwin.com/cygwin-ug-net/using-utils.html#mkpasswd has more
> > details on running mkpasswd.
>
> I've run mkpasswd but the real question I believe is what domain should
> I run mkpasswd for? As I stated above I have run it for the Windows
> domain that I log into. However, again, my home directory is served by a
> Linux box using Samba but that link box does not participate in the
> Windows domain that I log into rather it just runs in it's own workgroup.

Don't know if this is of any help: you can set the SIDs for the user and the 
user's primary group on the Samba box with 
pdbedit ... -U <SID> -G <SID> ...
Maybe it helps if you use the same SIDs your Windows Domain account has.

Regards
  mks

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