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Re: [Samba] Samba, AD, 'short' name resolving...




> You are meaning here, literally: windows client try to register/update
> DNS using ONLY the dns provided by DHCP?
> Or, speaking differently the same thing, windows client suppose blindly
> that DNS got by DHCP ARE AD DCs?

Ok, DNS registration seems to work, but on a (form me) strange way...

Spotted in logs:

 Jun  8 10:14:25 vdcud1 named[1049]: client 10.5.2.127#50250: request has invalid signature: TSIG 1592-ms-7.34-f336b9d.cc4eac93-69d4-11e8-1eb6-dc4a3e58a634 (QUIRINIUS\$\@AD.FVG.LNF.IT): tsig verify failure (BADSIG)
 Jun  8 10:19:05 vdcud1 named[1049]: samba_dlz: starting transaction on zone ad.fvg.lnf.it
 Jun  8 10:19:05 vdcud1 named[1049]: client 10.5.2.127#56413: update 'ad.fvg.lnf.it/IN' denied
 Jun  8 10:19:05 vdcud1 named[1049]: samba_dlz: cancelling transaction on zone ad.fvg.lnf.it

note that '10.5.2.127' is in a different 'site' from vdcud1. Also, the
link under which vdcud1 is located now suffer major troubles, so some
network errors are expected.

Effectively, after some seconds:

 Jun  8 10:19:06 vdcud1 named[1049]: samba_dlz: starting transaction on zone ad.fvg.lnf.it
 Jun  8 10:19:06 vdcud1 named[1049]: samba_dlz: allowing update of signer=QUIRINIUS\$\@AD.FVG.LNF.IT name=QUIRINIUS.ad.fvg.lnf.it tcpaddr= type=AAAA key=1592-ms-7.35-f37ffc1.cc4eac93-69d4-11e8-1eb6-dc4a3e58a634/160/0
 Jun  8 10:19:06 vdcud1 named[1049]: samba_dlz: allowing update of signer=QUIRINIUS\$\@AD.FVG.LNF.IT name=QUIRINIUS.ad.fvg.lnf.it tcpaddr= type=A key=1592-ms-7.35-f37ffc1.cc4eac93-69d4-11e8-1eb6-dc4a3e58a634/160/0
 Jun  8 10:19:06 vdcud1 named[1049]: samba_dlz: allowing update of signer=QUIRINIUS\$\@AD.FVG.LNF.IT name=QUIRINIUS.ad.fvg.lnf.it tcpaddr= type=A key=1592-ms-7.35-f37ffc1.cc4eac93-69d4-11e8-1eb6-dc4a3e58a634/160/0
 Jun  8 10:19:06 vdcud1 named[1049]: client 10.5.2.127#50735/key QUIRINIUS\$\@AD.FVG.LNF.IT: updating zone 'ad.fvg.lnf.it/NONE': deleting rrset at 'QUIRINIUS.ad.fvg.lnf.it' AAAA
 Jun  8 10:19:06 vdcud1 named[1049]: client 10.5.2.127#50735/key QUIRINIUS\$\@AD.FVG.LNF.IT: updating zone 'ad.fvg.lnf.it/NONE': deleting rrset at 'QUIRINIUS.ad.fvg.lnf.it' A
 Jun  8 10:19:06 vdcud1 named[1049]: samba_dlz: subtracted rdataset QUIRINIUS.ad.fvg.lnf.it 'QUIRINIUS.ad.fvg.lnf.it.#0111200#011IN#011A#01110.5.2.127'
 Jun  8 10:19:06 vdcud1 named[1049]: client 10.5.2.127#50735/key QUIRINIUS\$\@AD.FVG.LNF.IT: updating zone 'ad.fvg.lnf.it/NONE': adding an RR at 'QUIRINIUS.ad.fvg.lnf.it' A
 Jun  8 10:19:06 vdcud1 named[1049]: samba_dlz: added rdataset QUIRINIUS.ad.fvg.lnf.it 'QUIRINIUS.ad.fvg.lnf.it.#0111200#011IN#011A#01110.5.2.127'
 Jun  8 10:19:06 vdcud1 named[1049]: samba_dlz: committed transaction on zone ad.fvg.lnf.it
 Jun  8 10:19:06 vdcud1 named[1049]: samba_dlz: starting transaction on zone ad.fvg.lnf.it
 Jun  8 10:19:06 vdcud1 named[1049]: client 10.5.2.127#49227: update 'ad.fvg.lnf.it/IN' denied
 Jun  8 10:19:06 vdcud1 named[1049]: samba_dlz: cancelling transaction on zone ad.fvg.lnf.it
 Jun  8 10:19:06 vdcud1 named[1049]: samba_dlz: starting transaction on zone ad.fvg.lnf.it
 Jun  8 10:19:06 vdcud1 named[1049]: samba_dlz: allowing update of signer=QUIRINIUS\$\@AD.FVG.LNF.IT name=QUIRINIUS.ad.fvg.lnf.it tcpaddr= type=AAAA key=1592-ms-7.35-f37ffc1.cc4eac93-69d4-11e8-1eb6-dc4a3e58a634/160/0
 Jun  8 10:19:06 vdcud1 named[1049]: samba_dlz: allowing update of signer=QUIRINIUS\$\@AD.FVG.LNF.IT name=QUIRINIUS.ad.fvg.lnf.it tcpaddr= type=A key=1592-ms-7.35-f37ffc1.cc4eac93-69d4-11e8-1eb6-dc4a3e58a634/160/0
 Jun  8 10:19:06 vdcud1 named[1049]: samba_dlz: allowing update of signer=QUIRINIUS\$\@AD.FVG.LNF.IT name=QUIRINIUS.ad.fvg.lnf.it tcpaddr= type=A key=1592-ms-7.35-f37ffc1.cc4eac93-69d4-11e8-1eb6-dc4a3e58a634/160/0
 Jun  8 10:19:06 vdcud1 named[1049]: client 10.5.2.127#53254/key QUIRINIUS\$\@AD.FVG.LNF.IT: updating zone 'ad.fvg.lnf.it/NONE': deleting rrset at 'QUIRINIUS.ad.fvg.lnf.it' AAAA
 Jun  8 10:19:06 vdcud1 named[1049]: client 10.5.2.127#53254/key QUIRINIUS\$\@AD.FVG.LNF.IT: updating zone 'ad.fvg.lnf.it/NONE': deleting rrset at 'QUIRINIUS.ad.fvg.lnf.it' A
 Jun  8 10:19:06 vdcud1 named[1049]: samba_dlz: subtracted rdataset QUIRINIUS.ad.fvg.lnf.it 'QUIRINIUS.ad.fvg.lnf.it.#0111200#011IN#011A#01110.5.2.127'
 Jun  8 10:19:06 vdcud1 named[1049]: client 10.5.2.127#53254/key QUIRINIUS\$\@AD.FVG.LNF.IT: updating zone 'ad.fvg.lnf.it/NONE': adding an RR at 'QUIRINIUS.ad.fvg.lnf.it' A
 Jun  8 10:19:06 vdcud1 named[1049]: samba_dlz: added rdataset QUIRINIUS.ad.fvg.lnf.it 'QUIRINIUS.ad.fvg.lnf.it.#0111200#011IN#011A#01110.5.2.127'

transaction happened.

So, to me:

a) seems that DNS offered by DHCP CAN not be the AD DNS, and client
 find a way to register himself.

b) client use as DNS to register some ''random'' DNS, and seems to keep
 them for some time...


Currently i've machine on site A that register on site C, and machine
of site B that register on site A.


AARRGGH! ;-)

-- 
dott. Marco Gaiarin				        GNUPG Key ID: 240A3D66
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