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From: Martijn de Gouw <martijn.de.gouw@prodrive-technologies.com>
To: "linux-cifs@vger.kernel.org" <linux-cifs@vger.kernel.org>
Subject: cifs.upcall requests ticket for wrong host when using dfs
Date: Fri, 3 Jan 2020 14:11:23 +0000	[thread overview]
Message-ID: <39643d7d-2abb-14d3-ced6-c394fab9a777@prodrive-technologies.com> (raw)

Hi,

I'm trying to switch from ntlpssp to kerbebos for mounting our dfs 
shares. It seems to work, but only for 'older' kernel versions. Since we 
are running debian 9 and 10, I'm testing this for both version. The 
thing is that is seems to work when I run kernel 4.19.67, but not when 
I'm running kernel 5.3.9.

What I'm trying to do:
mount -t cifs //domain.com/common /mnt/common -o 
rw,vers=3.0,sec=krb5,cruid=10003,username=mdg,uid=10003,gid=10276,addr=10.1.1.14,file_mode=0600,dir_mode=0700,nobrl,nohandlecache,user=mdg

So far it works fine on 4.19, but not on 5.3. Because when I try to 
travel into the directories (which are actually dfs pointers to the NAS 
shares) I get permission denied.

So far, I was able to track this down to cifs.upcall, because on kernel 
4.19 I see it tries to get a service ticket for the nas (cifs.upcall: 
handle_krb5_mech: getting service ticket for nas01.domain.com). But on 
kernel 5.3 it tries to get a ticket for the dc again: cifs.upcall: 
handle_krb5_mech: getting service ticket for dc01.domain.com.

What could be wrong here?
-- 
Martijn de Gouw
Designer
Prodrive Technologies
Mobile: +31 63 17 76 161
Phone:  +31 40 26 76 200

             reply	other threads:[~2020-01-03 14:11 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-03 14:11 Martijn de Gouw [this message]
     [not found] ` <87png0boej.fsf@cjr.nz>
2020-01-03 16:30   ` cifs.upcall requests ticket for wrong host when using dfs Martijn de Gouw
2020-01-03 20:14     ` Paulo Alcantara
2020-01-06 15:07       ` Martijn de Gouw
2020-01-06 23:30         ` Paulo Alcantara
2020-01-07 16:13           ` Martijn de Gouw
2020-01-08 17:46             ` Paulo Alcantara
2020-01-09 12:27               ` Martijn de Gouw
2020-01-09 13:06                 ` Paulo Alcantara
2020-01-30 17:46                   ` Jacob Shivers
2020-01-30 18:55                     ` Steve French
2020-01-30 19:06                       ` Jacob Shivers

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