[Samba] Failover DC did not work when Main DC failed

Paul Littlefield info at paully.co.uk
Thu Feb 13 16:28:08 UTC 2020


On 13/02/2020 15:17, Rowland penny via samba wrote:
> The various ways have already been mentioned, but are all your DCs listed as nameservers (NS) in the SOA's for the forward and reverse zones ?


I think so...


root at dc3.mydomain.com ~ $ (screen) samba-tool dns query dc3 mydomain.com @ ALL
   Name=, Records=5, Children=0
     SOA: serial=620, refresh=900, retry=600, expire=86400, minttl=0, ns=dc3.mydomain.com., email=hostmaster.mydomain.com. (flags=600000f0, serial=620, ttl=3600)
     NS: dc3.mydomain.com. (flags=600000f0, serial=110, ttl=900)
     NS: dc4.mydomain.com. (flags=600000f0, serial=110, ttl=900)
     A: 192.168.0.218 (flags=600000f0, serial=110, ttl=900)
     A: 192.168.0.219 (flags=600000f0, serial=110, ttl=900)


root at dc3.mydomain.com ~ $ (screen) samba-tool dns query dc3 0.168.192.in-addr.arpa @ ALL
   Name=, Records=3, Children=0
     SOA: serial=73, refresh=900, retry=600, expire=86400, minttl=3600, ns=dc3.mydomain.com., email=hostmaster.mydomain.com. (flags=600000f0, serial=73, ttl=3600)
     NS: dc3.mydomain.com. (flags=600000f0, serial=56, ttl=900)
     NS: dc4.mydomain.com. (flags=600000f0, serial=58, ttl=900)


...do those look fine?

Paully



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