Bug 961363

Summary:	AD DNS timestamps have strange values
Product:	[Fedora] Fedora	Reporter:	David Spurek <dspurek>
Component:	sssd	Assignee:	Jakub Hrozek <jhrozek>
Status:	CLOSED NOTABUG	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	19	CC:	ebenes, jhrozek, pbrezina, sbose, sgallagh, ssorce
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Last Closed:	2013-05-16 15:43:24 UTC	Type:	Bug
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Description David Spurek 2013-05-09 13:27:36 UTC

Description of problem:
AD DNS timestamps have strange values. SSSD is configured with 'dyndns_update = True' entry. But DNS timestamp in AD have strange value after the entry is added. Here is an example:

Date on AD machine is '5/9/2013 3:24 PM', but added DNS entry has timestamp '5/9/2013 3:00:00'

I think it is strange, but maybe it is a problem on AD side.


Version-Release number of selected component (if applicable):


How reproducible:
sssd-1.10.0-4.fc19

Steps to Reproduce:
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Actual results:


Expected results:


Additional info:

Comment 1 Jakub Hrozek 2013-05-09 13:56:35 UTC

SSSD has nothing to do with the timestamps, it just sends the nsupdate to AD, the timestamps are generated by AD.

Comment 2 Jakub Hrozek 2013-05-16 15:43:24 UTC

I double checked the Microsoft documentation to make sure the timestamps are expected. Turns out they are, AD generates the timestamps rounded down to the nearest hour:

See for example:
http://blogs.technet.com/b/networking/archive/2008/03/19/don-t-be-afraid-of-dns-scavenging-just-be-patient.aspx?Redirected=true

But you're right that we didn't mention this explicitly prior to the test day. I will amend our test plans accordingly. Thanks!