X-Recipient:	archive-cygwin AT delorie DOT com
DomainKey-Signature:	a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:from:to:subject:date:message-id:content-type
	:content-transfer-encoding:mime-version; q=dns; s=default; b=Qe7
	fNbpjwvDkrXJf7nlYwDpJa0EtBuf+Mm/xhi75vdxugSxgX71TL5WPkeZzorfNOOj
	o7C/4uE6ddBOaZCFY7SSoYs09uFLZ9fZx1qdOwHUTcV2/vhR1n6wse//JDOXvXHu
	mN9rcQQ8ANHn0ZPSYS5UAmS196aEei7xU/EB1SoQ=
DKIM-Signature:	v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:from:to:subject:date:message-id:content-type
	:content-transfer-encoding:mime-version; s=default; bh=raPLgWRC+
	gx6SsrPxHG6Fkry0Uw=; b=m00OpAsqoMWRv55ctoZfSeT9tlokU5Wdi9QFYsNqL
	fecmsS/uHCxMb9Yj7v+19mAqY2NphWMWl2tw13JWORZHjBsreHgSR0GDf8LbjeTB
	xYhl/Ia12QyuVfCRflGCMU0KW6SDvR/Gia0Z5cRxZpbyYnKuYKwGWTrB7F1RtXOr
	Ls=
Mailing-List:	contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id:	<cygwin.cygwin.com>
List-Subscribe:	<mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive:	<http://sourceware.org/ml/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender:	cygwin-owner AT cygwin DOT com
Mail-Followup-To:	cygwin AT cygwin DOT com
Delivered-To:	mailing list cygwin AT cygwin DOT com
Authentication-Results:	sourceware.org; auth=none
X-Virus-Found:	No
X-Spam-SWARE-Status:	No, score=0.1 required=5.0 tests=AWL,BAYES_20,RCVD_IN_DNSWL_LOW,RCVD_IN_SORBS_SPAM,SPF_PASS autolearn=ham version=3.3.2 spammy=wor, ser, explorer, H*M:COM
X-HELO:	esa1.dell-outbound.iphmx.com
From:	<Dave DOT Pierce AT dell DOT com>
X-LoopCount0:	from 10.170.28.39
To:	<cygwin AT cygwin DOT com>
Subject:	SSH Keys breaking symlink access?
Date:	Fri, 19 May 2017 19:26:00 +0000
Message-ID:	<6d6087eef8f444edbe659c278f63ab43@AUSX13MPC128.AMER.DELL.COM>
x-ms-exchange-transport-fromentityheader:	Hosted
MIME-Version:	1.0
X-MIME-Autoconverted:	from quoted-printable to 8bit by delorie.com id v4JJQMWD004904

Hello!

I am running Cygwin-64, 2.8.0(0.309/5/3) on a Windows 2016 Server. This sys= tem is intended for use by a fairly wide audience of devs. We have this wor= king correctly on an old Windows 2008 box running Cygwin 1.7.9(0.237/5/3). = The new system is intended to replace the old one. I've mimicked the config= uration as much possible on the new system, but am running into an issue wi= th passwordless (key-auth) ssh.

I have created a windows symlink ("mklink /d /sharename [unc_path]") in the=
 c:\cygwin64 directory that points to an NFS share. (This is the same as th= e old system.)

I have OpenSSH configured and working.

I can access "/sharename" within explorer (c:\cygwin64\sharename\) and loca= lly from within the Cygwin prompt (/sharename), when logged in as either th= e service account or my own domain account.

If I ssh into the system using password authentication, I am able to "ls /s= harename" regardless of which account I use, in either interactive mode or = not.

If I copy ~/.ssh/ to the server for the service account, I can get into /sh= arename.

But if I copy ~/.ssh/ for my own domain account, I cannot. I get a "permiss= ion denied" error when attempting to cd to /sharename or do an ls of it. Th= is is true whether I ssh into the system interactively, or execute the comm= and remotely / non-interactively.

On the old system, "ls -la /" shows the link owned by the service account u= ser. On the new system, it was initially owned by "Administrators" but I ch= anged it to match. This did not change behavior. I've diffed the other Cygw= in config files and except for a couple minor tweaks due to the newer Cygwi= n version, there are no differences.

/var/log/sshd.log shows nothing.

Any help or troubleshooting tips would be appreciated. I'm not so hot as a = Windows admin - without dmesg or a syslog, I'm kind of at a loss. I don't really understand why ssh key auth would interfere with file system or network access in this way.

Regards,
Dave P.


--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple

- Raw text -