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

[Rowland penny]

On 13/02/2020 16:28, Paul Littlefield wrote:
> 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

I am not a dns expert, but shouldn't the reverse zone SOA have A records 
like the forward zone ?

Rowland