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From: "Aurélien Aptel" <aaptel@suse.com>
To: Shyam Prasad N <nspmangalore@gmail.com>
Cc: CIFS <linux-cifs@vger.kernel.org>,
	samba-technical@lists.samba.org,
	Pavel Shilovsky <piastryyy@gmail.com>,
	Steve French <smfrench@gmail.com>,
	sribhat.msa@outlook.com
Subject: Re: [PATCH][SMB3] mount.cifs integration with PAM
Date: Wed, 09 Sep 2020 16:13:16 +0200	[thread overview]
Message-ID: <874ko7vy0z.fsf@suse.com> (raw)
In-Reply-To: <CANT5p=qMHxq_L5RpXAixzrQztjMr8-P_aO4aPg5uqfPSLNUiTA@mail.gmail.com>

Shyam Prasad N <nspmangalore@gmail.com> writes:
> Thoughts?

You are reaching the limits of my poor understanding of this kerberos
stuff. What is the difference between keytab and credential cache?

So IIUC you are proposing 2 ways to go about it:

a) - do PAM login in mount.cifs (which in turns calls into sssd/winbind)
   - implement umount.cifs for PAM logoff
   
b) - ignore PAM and winbind/sssd and do kinit in mount.cifs manually
   - would this requires umount.cifs as well?

I like (b) because it feels we have more control and don't require a big
external program like winbind *but* if (b) doesn't do the refreshing of
the tickets then the mount will always stop working after they
expire. This seems only useful for quick one-off mounting or
testing/debugging. Real end users will find it unreliable unless they
setup something like what winbind does essentially.

So ultimately, to me, (a) seems like the better choice. Let me know if I
misunderstood something.

Cheers,
-- 
Aurélien Aptel / SUSE Labs Samba Team
GPG: 1839 CB5F 9F5B FB9B AA97  8C99 03C8 A49B 521B D5D3
SUSE Software Solutions Germany GmbH, Maxfeldstr. 5, 90409 Nürnberg, DE
GF: Felix Imendörffer, Mary Higgins, Sri Rasiah HRB 247165 (AG München)

  reply	other threads:[~2020-09-09 16:24 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-14  5:45 [PATCH][SMB3] mount.cifs integration with PAM Shyam Prasad N
2020-08-14  9:52 ` Aurélien Aptel
     [not found]   ` <CANT5p=oeY91u17DPe6WO75Eq_bjzrVC0kmAErrZ=h3S1qh-Wxw@mail.gmail.com>
2020-08-17  8:48     ` Aurélien Aptel
     [not found]       ` <CANT5p=rxp3iQMgxaM_mn3RE3B+zezWr3o8zpkFyWUR27CpeVCA@mail.gmail.com>
2020-09-09 11:04         ` Shyam Prasad N
2020-09-09 14:13           ` Aurélien Aptel [this message]
2020-09-09 17:25             ` Shyam Prasad N
2020-09-10  9:43               ` Aurélien Aptel
2020-09-23 12:06                 ` Shyam Prasad N
2020-09-23 13:56                   ` Aurélien Aptel
2020-09-24 10:39                     ` Shyam Prasad N
2020-11-09 23:42                       ` Pavel Shilovsky
2020-11-10 13:20                         ` Shyam Prasad N
2020-11-10 19:22                           ` Pavel Shilovsky
2020-11-27 10:43                             ` Shyam Prasad N
2020-12-14 18:03                               ` Stefan Metzmacher
     [not found]                                 ` <CANT5p=rYiY0xE-35swsFKVitZD2yTchRiReyA0wVvY+mU_qKEw@mail.gmail.com>
2021-01-30 14:24                                   ` Shyam Prasad N
2021-02-01 10:51                                     ` Aurélien Aptel

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