[cvsnt] impersonation troubles on w2k

mister.mandarino at bluemail.ch mister.mandarino at bluemail.ch
Tue Sep 24 10:10:22 BST 2002

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After much experimentation, I eventually found a solution.

On the NTFS directory where the repository resides, instead of assigning
"Full Control" to a group I am a member of, I assigned "Full Control" to
my user account directly. This way it works.

Don't ask me why, maybe there is some weird interaction between impersonation
and access control that requires that a subject being impersonated needs
to be assigned to access control lists directly instead of through security
groups, who knows?

"Bo Berglund" <bo.berglund at telia.com> wrote in message news:<hjquou046m88k5lrfhes490jjdfk69pd60 at 4ax.com>...
> I am very much interested if you can duplicate the 'solution' I
> managed to find to get the cvs ls command working on our system:
> Do as follows:
> Check out CVSROOT
> Edit the loginfo file by removing most of the comment lines from it.
> Then commit the loginfo file
> Finally retry the previously nonworking cvs ls command.
> In my case once I had removed the last 4-5 lines of comments cvs ls
> started working like it should.
> I have absolutely no clue as to why this happened in the fist place,
> but for my server it did work. We are using build 57g and mostly the
> :ntserver: protocol.
> Please report your finding.
> /Bo
> On Mon, 23 Sep 2002 21:17:02 +0200, mister.mandarino at bluemail.ch
> wrote:
> >It seems that impersonation through pserver doesn't work well on w2k.
> >
> >Our server is configured with the LocalSystem account running the cvsnt
> >services.
> >
> >When the "Impersonation enabled" flag is turned on, clients can login
> >cannot execute a "cvs ls", for example, and get an indication that they
> >lack permissions to create a tempdir. Because the users can login, the
> >has the proper rights and the services that run under it can impersonate
> >other users.
> >
> >However, it seems that creation of the tempdir is attempted by another
> >In fact, the name of the tempdir includes a PID as part of it. There
> >no process with this PID after the unsuccessful attempt to create the
> >So it seems that the process exists only for a short time and that it
> >spawned by the cvsnt services. This process seems not to have the proper
> >permission to create the tempdir.
> >
> >On the other hand, when the services run with disabled impersonation
> >is not recommended for obvious security reasons), clients can login and
> >operate normally.
> >
> >I have seen that other users experienced the same problem, but nobody
> >posted a workaround until now.
> >
> >Any explanation would be greatly appreciated.
> >
> >
> >
> /Bo
> (Bo Berglund, developer in Sweden)

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