Re: [OpenAFS] Re: Heimdal KDC bug mentioned in rekeying document

2013-07-30 Thread Harald Barth
Secure Endpoints has pushed fixes to https://github.com/heimdal/heimdal for both the 'master' (aka pre-1.6) and 'heimdal-1-5-branch' branches. Warning: Real-life results show that the code path for preauth always seems to go through the strongest enctype configured (for example aes256), even

[OpenAFS] anonymous AFS access from pre-1.6.5 clients after DES is disabled

2013-07-30 Thread Edgecombe, Jason
Hi everyone, After all of the cell's AFS servers are upgraded to 1.6.5 and DES is disabled, will pre-1.6.5 clients still retain anonymous AFS access via system:anyuser access and IP ACLs? I understand that authenticated access will not be possible, but I want to clarify the anonymous access

Re: [OpenAFS] anonymous AFS access from pre-1.6.5 clients after DES is disabled

2013-07-30 Thread Jeffrey Altman
anonymous access is unaffected. However, a user with a token that is no longer accepted is not anonymous On 7/30/2013 9:01 AM, Edgecombe, Jason wrote: Hi everyone, After all of the cell's AFS servers are upgraded to 1.6.5 and DES is disabled, will pre-1.6.5 clients still retain anonymous

Re: [OpenAFS] Re: Heimdal KDC bug mentioned in rekeying document

2013-07-30 Thread Jeffrey Altman
On 7/30/2013 6:57 AM, Harald Barth wrote: Secure Endpoints has pushed fixes to https://github.com/heimdal/heimdal for both the 'master' (aka pre-1.6) and 'heimdal-1-5-branch' branches. Warning: Real-life results show that the code path for preauth always seems to go through the strongest

[OpenAFS] Removing stuff from /afs

2013-07-30 Thread Jaap Winius
Hi folks, Could someone please remind me how to remove stuff from the /afs directory? I recently discovered an empty directory there, called: /afs/.:mount Obviously it was created there by accident, probably by me. However, when I try to remove it I get: rmdir: failed to remove

Re: [OpenAFS] Removing stuff from /afs

2013-07-30 Thread Benjamin Kaduk
On Tue, 30 Jul 2013, Jaap Winius wrote: Hi folks, Could someone please remind me how to remove stuff from the /afs directory? I recently discovered an empty directory there, called: /afs/.:mount Obviously it was created there by accident, probably by me. However, when I try to remove it I

Re: [OpenAFS] Removing stuff from /afs

2013-07-30 Thread Brandon Allbery
On 7/30/13 12:01, Jaap Winius jwin...@umrk.nl wrote: Hi folks, Could someone please remind me how to remove stuff from the /afs directory? I recently discovered an empty directory there, called: /afs/.:mount If you're using dynroot, that's an autocreated directory which can be used to

[OpenAFS] Re: Removing stuff from /afs

2013-07-30 Thread Andrew Deason
On Tue, 30 Jul 2013 18:01:54 +0200 Jaap Winius jwin...@umrk.nl wrote: Could someone please remind me how to remove stuff from the /afs directory? I recently discovered an empty directory there, called: /afs/.:mount Obviously it was created there by accident, probably by me. However,

Re: [OpenAFS] Removing stuff from /afs

2013-07-30 Thread Jaap Winius
Quoting Benjamin Kaduk ka...@mit.edu: I assume that you are not using dynroot? Actually, I am using it. In /etc/openafs/afs.conf.client I have: AFS_DYNROOT=true The standard way to do such things is to make an additional mount of the root.afs volume somewhere else in the local cell, and

Re: [OpenAFS] Removing stuff from /afs

2013-07-30 Thread Jaap Winius
Quoting Brandon Allbery ballb...@sinenomine.net: If you're using dynroot, that's an autocreated directory which can be used to access any volume directly: try /afs/.:mount/local.cell:root.cell (replacing local.cell with the name of the local cell). Well, whaddya know: it's not a mistake, it's

Re: [OpenAFS] Removing stuff from /afs

2013-07-30 Thread Stephan Wiesand
On Jul 30, 2013, at 19:09 , Jaap Winius wrote: Quoting Benjamin Kaduk ka...@mit.edu: I assume that you are not using dynroot? Actually, I am using it. In /etc/openafs/afs.conf.client I have: AFS_DYNROOT=true The standard way to do such things is to make an additional mount of the

Re: [OpenAFS] Re: Removing stuff from /afs

2013-07-30 Thread Michael Meffie
On Tue, 30 Jul 2013 11:25:05 -0500 Andrew Deason adea...@sinenomine.net wrote: On Tue, 30 Jul 2013 18:01:54 +0200 Jaap Winius jwin...@umrk.nl wrote: Could someone please remind me how to remove stuff from the /afs directory? I recently discovered an empty directory there, called:

[OpenAFS] MIT Kerberos des session key

2013-07-30 Thread John Sopko
Where is the session key for the afs/cell@REALM service principal derived from? If I remove the des-cbc-crc encryption type from both the afs/cell@REALM and the user principals will things still work without having to upgrade all clients to openafs 1.6.5? I would like to get rid of the single des

Re: [OpenAFS] MIT Kerberos des session key

2013-07-30 Thread Brandon Allbery
On 7/30/13 14:39, John Sopko so...@cs.unc.edu wrote: Where is the session key for the afs/cell@REALM service principal derived from? If I remove the des-cbc-crc encryption type from both the afs/cell@REALM and the user principals will things still work without having to upgrade all clients to

[OpenAFS] Re: MIT Kerberos des session key

2013-07-30 Thread Andrew Deason
On Tue, 30 Jul 2013 14:39:56 -0400 John Sopko so...@cs.unc.edu wrote: Where is the session key for the afs/cell@REALM service principal derived from? Session keys aren't usually derived from anything in the principal; they're chosen randomly. There is a situation for OpenAFS specifically where

Re: [OpenAFS] Re: Heimdal KDC bug mentioned in rekeying document

2013-07-30 Thread Benjamin Kaduk
On Tue, 30 Jul 2013, Jeffrey Altman wrote: This is an incorrect description. The explicit problem occurs when the following combination is true: 1. user has one or more strong enctype keys with non-default password salts 2. the only keys with default password salts are weak enctypes 3.

Re: [OpenAFS] Re: Heimdal KDC bug mentioned in rekeying document

2013-07-30 Thread Jeffrey Altman
On 7/30/2013 7:32 PM, Benjamin Kaduk wrote: On Tue, 30 Jul 2013, Jeffrey Altman wrote: This is an incorrect description. The explicit problem occurs when the following combination is true: 1. user has one or more strong enctype keys with non-default password salts 2. the only keys

Re: [OpenAFS] Re: MIT Kerberos des session key

2013-07-30 Thread Benjamin Kaduk
Andrew is spot-on, just two minor clarifications (inline) On Tue, 30 Jul 2013, Andrew Deason wrote: On Tue, 30 Jul 2013 14:39:56 -0400 John Sopko so...@cs.unc.edu wrote: Where is the session key for the afs/cell@REALM service principal derived from? Session keys aren't usually derived from

Re: [OpenAFS] Re: Heimdal KDC bug mentioned in rekeying document

2013-07-30 Thread Jeffrey Hutzelman
On Tue, 2013-07-30 at 19:44 -0400, Jeffrey Altman wrote: On 7/30/2013 7:32 PM, Benjamin Kaduk wrote: On Tue, 30 Jul 2013, Jeffrey Altman wrote: This is an incorrect description. The explicit problem occurs when the following combination is true: 1. user has one or more strong

Re: [OpenAFS] Re: Heimdal KDC bug mentioned in rekeying document

2013-07-30 Thread Harald Barth
This is an incorrect description. That might very well be, but I thought it was better than nothing because others who are in trouble might want to know that they are not alone ;-/ The explicit problem occurs when the following combination is true: 1. user has one or more strong enctype