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To: cygwin@cygwin.com
From: "D. Boland" <daniel@boland.nl>
Subject: Re: The eternal uid issue
Date: Mon, 28 Jul 2014 13:42:50 +0200
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Message-ID: <53D6373A.193E3E47@boland.nl>
References: <53CF6CEC.6D68E485@boland.nl> <20140723091409.GH27005@calimero.vinschen.de> <53CF9E0F.F596FC60@boland.nl> <20140723152357.GA24446@calimero.vinschen.de> <53D0AD3A.1FDF0B3F@boland.nl> <20140724135222.GD12212@calimero.vinschen.de> <53D17DCD.726524E0@boland.nl> <20140725124200.GC8725@calimero.vinschen.de> <53D604BC.1CBD4557@boland.nl> <20140728091409.GA25860@calimero.vinschen.de>
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Hi Corinna,

Corinna Vinschen wrote:
> 
> Still, are you using setuid method 1 or another method?  Is your home
> dir the default /home/$USER as created from inside the Cygwin
> environment?  Any chance your home dir has an unusual ACL?
> 
> Did you set up sshd as service?  If not, you might consider to do that
> so you can check what happens when switching to the smmsp account.  Run
> ssh-host-config as admin, install the service.  Create an authorized_keys
> file for the smmsp user (run ssh-user-config under smmsp for instance),
> then start the service.  Now login to the smmsp user account using
> public key authentication, admin-enabled vs. non-admin as above(*), and
> observe the permissions ls or stat show you for your home dir.  Are they
> really different?  If so, let's see the strace output again.

Argh! I checked the /home folder and it was indeed group and world writable. After
setting it to 0755 sendmail had no issues anymore. Sendmail checks permissions on
the entire path. I cannot remember setting it 0777, so something else must have set
it.

Regarding the suid method: You mean method 1, 2 and 3 in the "Using Windows security
in Cygwin" article, right? I have nothing special set up, so it uses the default
method 1.

As to the sshd, I had it set up as a service already.

Thanks again for your help. I will announce the Sendmail release soon.

Cincerely,
Daniel


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