Domain Controller Requires SRV record

Hi,

I am using IPFire as my DNS server. I created a host entry for my Domain Controller however when joining a computer to the domain I get this error:

image

I am guessing I need to create a SRV record somehow?

I did this by creating a file domain.conf in /etc/unbound/local.d

And I added:

server:
    local-data: "_ldap._tcp.dc._msdcs.mydomain.com.au 3600 IN SRV 0 100 389 nameofdc.mydomain.com.au"