[Samba] Dynamic DNS Updates

[Chris Rowson]

Having reconfigured Samba4 to use BIND as a DNS server to get dynamic DNS
updates working, I'm still working to understand the system.

The Windows client I'm testing only seems up update DNS if I run ipconfig
/registerdns. It doesn't update DNS at startup or IP change OOTB. Is it
expected that Windows clients run a startup script running ipconfig
/registerdns or have dynamic updates enforced in Group Policy?

Additionally, timestamps against dynamically updated DNS A records always
read as today's date 12:00:00 PM - the time never changes.

Just checking whether or not these are expected behaviours,

Thanks,

Chris