[cvsnt] impersonation troubles on w2k

Bo Berglund bo.berglund at telia.com
Mon Sep 23 20:29:05 BST 2002

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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.


On Mon, 23 Sep 2002 21:17:02 +0200, mister.mandarino at bluemail.ch

>It seems that impersonation through pserver doesn't work well on w2k.
>Our server is configured with the LocalSystem account running the cvsnt
>When the "Impersonation enabled" flag is turned on, clients can login but
>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 LocalSystem
>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 process.
>In fact, the name of the tempdir includes a PID as part of it. There is
>no process with this PID after the unsuccessful attempt to create the tempdir.
>So it seems that the process exists only for a short time and that it is
>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 (which
>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 has
>posted a workaround until now.
>Any explanation would be greatly appreciated.

(Bo Berglund, developer in Sweden)

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