DDNS updates for zone having multiple primary servers

[glenn.satchell at uniq.com.au]

Hi Kraishak

option domain-name-servers <Server1>, <Server2>;

This sets the list of DNS servers to be used by the client for looking 
up DNS entries. It is not related to DDNS updates. In a large network, 
for example, you may want this to point to local DNS servers. If your 
authoritative DNS only lists public IPs then you might want to point to 
the Google DNS (8.8.8.8, etc) on the clients.

For the zone setting, have you had a look at the dhcpd.conf man page, in 
particular the section titled "DYNAMIC DNS UPDATE SECURITY" where it 
explains the syntax and behaviour.

It's not clear whether it is a comma separated list of secondaries, or 
multiple secondary statements with a single address.

regards,
Glenn

On 2021-03-30 15:00, kraishak wrote:
> Hi Simon,
> 
> Thanks for the information, Just want to cross check does it means can 
> we
> configure the secondary appliance as comma separated IP's as below if 
> we
> have more than one ?
> 
> zone example.com.
>         {
>             primary 192.168.0.45;
>             secondary 192.168.0.47,192.168.0.48;
>         }
> 
> 2)I have one more doubt while configuring the DDNS updates
> we have an option domain-name-servers and zone servers like below
> option domain-name-servers <Server1>, <Server2>;
> zone example.com.
>         {
>             primary <ServerZ1>;
>             secondary <ServerZ2>;
>         }
> Does Server1, server2 should be same as ServerZ1, ServerZ2?
> 
> Thanks in Advance
> Kraishak
> 
> 
> 
> 
> 
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