Failover static and dynamic lease

[Simon Hobson]

Marcos Renato da Silva Junior <marcosjr at dee.feis.unesp.br> wrote:

> After configure failover in my environment these are my observations.
> 
> I do not know if they are correct.
> 
> server1 : DNS (master) + DHCP failover with DDNS
> server2 : DNS (slave)    + DHCP failover with DDNS
> 
> If server1 fail, DDNS updates fail, but DNS queries and forwarding still working and DHCP still delivering IPs (server2).
> If server2 fail, DNS queries, forwarding and DDNS update still working and DHCP still delivering IPs (server1).
> 
> If only DHCP service on server1 fail, DNS queries, forwarding and DDNS update still working and DHCP still delivering IPs.
> If only DNS service on server1 fail, DDNS updates fail, but DNS queries and forwarding still working and DHCP still delivering IPs.

Correct.
That is exactly what I'd expect.