Bug 34370 – Samba4 DFS: Randomize DC redirects

Bug 34370 - Samba4 DFS: Randomize DC redirects


Summary:	Samba4 DFS: Randomize DC redirects

Status:	CLOSED FIXED

Product:	UCS
Classification:	Unclassified
Component:	Samba4
Version:	UCS 3.2
Hardware:	Other Linux

Importance:	P5 normal (vote)
Target Milestone:	UCS 3.2-1-errata
Assigned To:	Arvid Requate
QA Contact:	Felix Botner

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Reported:	2014-03-19 16:40 CET by Arvid Requate
Modified:	2014-04-09 08:24 CEST (History)
CC List:	2 users (show)

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Description Arvid Requate

2014-03-19 16:40:33 CET

Samba needs to be rebuilt with the patch attached to Bug #34326 Comment 1.


+++ This bug was initially created as a clone of Bug #34326 +++

After enabling the Samba4 DFS referral generator for the sysvol, it currently returns a referal list which is ordered statically (as retrived from the samdb backend). This would direct all clients in a certain site to the first DC on that list (which is in that site, if any DC is present there).

The attached patch based on the samba 4.1.0 source randomizes this list.

Comment 1 Arvid Requate

2014-03-31 19:37:18 CEST

The patch has been accepted upstream and samba has been rebuilt with it in errata3.2-1.

Advisory: 2014-01-08-samba.yaml

Comment 2 Felix Botner

2014-04-02 09:12:39 CEST

OK

-> smbclient //perf.test/sysvol -UAdministrator%univention
-> tail -f /var/log/samba/log.smbd | grep "Doing a"
  Doing a dfs referral for pmaster.perf.test with this value 
     \pmaster.perf.test\sysvol requested \perf.test\sysvol
  Doing a dfs referral for PBACKUP.perf.test with this value 
     \PBACKUP.perf.test\sysvol requested \perf.test\sysvol

-> smbclient //perf.test/sysvol -UAdministrator%univention
-> tail -f /var/log/samba/log.smbd | grep "Doing a"
  Doing a dfs referral for PBACKUP.perf.test with this value 
     \PBACKUP.perf.test\sysvol requested \perf.test\sysvol
  Doing a dfs referral for pmaster.perf.test with this value 
     \pmaster.perf.test\sysvol requested \perf.test\sysvol

-> smbclient //perf.test/sysvol -UAdministrator%univention
-> tail -f /var/log/samba/log.smbd | grep "Doing a"
  Doing a dfs referral for pmaster.perf.test with this value 
     \pmaster.perf.test\sysvol requested \perf.test\sysvol
  Doing a dfs referral for PBACKUP.perf.test with this value 
     \PBACKUP.perf.test\sysvol requested \perf.test\sysvol

OK - YAML

Comment 3 Moritz Muehlenhoff

2014-04-09 08:24:53 CEST

http://errata.univention.de/ucs/3.2/81.html