Andrew, that is great news! Thank you very much for your continuous effort in providing Samba for us! Ole Am 31.10.2015 um 10:36 schrieb Andrew Bartlett:> On Wed, 2015-10-28 at 16:42 +0100, Ole Traupe wrote: >> Hi, >> >> I demoted my PDC (DC1) forcefully, because replication (among others) >> wasn't working anymore due to hard disk failure and I was afraid of >> spending a lot of time on nothing. >> >> With DC1 offline I seized the FSMO roles on DC2 (4.2.5), restarted >> Samba, and found errors in the samba log due to the missing DC1. >> >> I removed the two DNS entries created according to this site: >> https://wiki.samba.org/index.php/Check_and_fix_DNS_entries_on_DC_join >> s >> I applied the script suggested here: >> https://wiki.samba.org/index.php/Demote_a_Samba_AD_DC >> This removed the DC1 entry in ADUC and "Active Directory Sites and >> Services". >> >> However, the error persists (10 minute interval; sanitized): >> # /usr/local/samba/sbin/samba_dnsupdate: couldn't get address for >> 'dc1.my.domain.de': not found >> >> Likely due to further DNS entries, the last-mentioned site suggests >> to >> remove them by hand. Most of the containers in the DNS console have >> only >> duplicate entries for DC1/2, so no problem. However, 3 don't: >> >> >> (removed subfolder and client PC entries; sanitized, translated where >> necessary GR->EN) >> >> >> *DNS/DC2/Forward-Lookupzones/my.domain.de* >> >> Name Type Data Time stamp >> (identical to parent folder) Source of Authority (SOA) [3], >> dc1.my.domain.de., hostmaster.my.domain.de. ?28.?10.?2015 15:00:00 >> (identical to parent folder) Nameserver (NS) dc1.my.domain.de. >> Static >> (identical to parent folder) Host (A) IP__of__DC1 Static >> (identical to parent folder) Host (A) IP__of__DC2 Static >> DC2 Host (A) 130.149.34.118 ?29.?07.?2015 13:00:00 >> >> >> *DNS/DC2/Forward-Lookupzones/_msdcs.my.domain.de* >> >> (identical to parent folder) Source of Authority (SOA) [3], >> dc1.my.domain.de., hostmaster.my.domain.de. ?28.?10.?2015 15:00:00 >> (identical to parent folder) Nameserver (NS) dc1.my.domain.de. >> Static >> objectGUID__of__DC2 Alias (CNAME) DC2.my.domain.de. >> ?29.?07.?2015 >> 13:00:00 >> >> >> *DNS/DC2/Forward-Lookupzones/_msdcs.my.domain.de/pdc/_tcp* >> >> _ldap Service Identification (SRV) [0][100][389] >> dc1.my.domain.de. Static >> >> >> What to do in these cases? Is it safe to open the properties of the >> non-duplicate entries and replace DC1 with DC2? > Just a quick note to say that we are (finally) working to improve this > situation. I have patches to improve samba_dnsupdate so that it will > add some of the missing entries (and use RPC to do so, avoiding nasty > chicken/egg issues), and my improvements to samba-tool domain demote > (adding a --remove-other-dead-server option) have landed in master. > > I'm sorry this has been so bad for so long, but there is hope. > > Thanks! > > Andrew Bartlett >
Andrew Bartlett
2015-Nov-13 21:28 UTC
[Samba] Demote a dead PDC: residuals in "DNS" console
On Mon, 2015-11-02 at 12:06 +0100, Ole Traupe wrote:> Andrew, that is great news! Thank you very much for your continuous > effort in providing Samba for us! > > OleThe patches for 'samba-tool domain demote --remove-other-dead-server' are now in master and will be in 4.4. This will actually do a better job of cleaning up a server than the normal 'samba-tool domain demote' as it specifically removes DNS records and some other objects. Sadly we didn't get time to fix the online case. Andrew Bartlett -- Andrew Bartlett http://samba.org/~abartlet/ Authentication Developer, Samba Team http://samba.org Samba Developer, Catalyst IT http://catalyst.net.nz/services/samba
Great, thank you, Andrew! Ole Am 13.11.2015 um 22:28 schrieb Andrew Bartlett:> On Mon, 2015-11-02 at 12:06 +0100, Ole Traupe wrote: >> Andrew, that is great news! Thank you very much for your continuous >> effort in providing Samba for us! >> >> Ole > The patches for 'samba-tool domain demote --remove-other-dead-server' > are now in master and will be in 4.4. This will actually do a better > job of cleaning up a server than the normal 'samba-tool domain demote' > as it specifically removes DNS records and some other objects. > > Sadly we didn't get time to fix the online case. > > Andrew Bartlett