Re: Switching identity using kinit/kdestroy for NFSv4 mounts doesn't work

2015-03-16 Thread Simo Sorce
On Mon, 2015-03-16 at 10:33 +0100, Robert Wehn wrote: > Hello * > > @Brandon, Ben: > On 13.03.2015, 15:05 Brandon Allbery wrote: > > ... the whole business about snooping ticket caches and caching its > > own private copy is concerning security-wise and seems like it > > would easily become confus

Re: Switching identity using kinit/kdestroy for NFSv4 mounts doesn't work

2015-03-16 Thread Robert Wehn
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hello * @Brandon, Ben: On 13.03.2015, 15:05 Brandon Allbery wrote: > ... the whole business about snooping ticket caches and caching its > own private copy is concerning security-wise and seems like it > would easily become confused. On 13.03.2015, 1

Re: Switching identity using kinit/kdestroy for NFSv4 mounts doesn't work

2015-03-13 Thread Simo Sorce
On Fri, 2015-03-13 at 14:05 +, Brandon Allbery wrote: > On Fri, 2015-03-13 at 14:55 +0100, Robert Wehn wrote: > > There is a bug report/suggested patch which seems to make it possible > > but never seemed to get into the kernel: > > http://www.spinics.net/lists/linux-nfs/msg34236.html > > > >

Re: Switching identity using kinit/kdestroy for NFSv4 mounts doesn't work

2015-03-13 Thread Benjamin Kaduk
On Fri, 13 Mar 2015, Robert Wehn wrote: > - - klist > -> TGT for jane@REALM > BUT! > -> localuser can still access alice's files > -> localuser can never access jane's files > -> no new NFS service ticket fetched or needed till the end > of the ticket lifetime > > What doesn't help: >

Re: Switching identity using kinit/kdestroy for NFSv4 mounts doesn't work

2015-03-13 Thread Brandon Allbery
On Fri, 2015-03-13 at 14:55 +0100, Robert Wehn wrote: > There is a bug report/suggested patch which seems to make it possible > but never seemed to get into the kernel: > http://www.spinics.net/lists/linux-nfs/msg34236.html > > What is your opinion to this behavior? > Do you think this is reasonab