problem: DNS records is not updated after a VDS move to a new Server
In version 3.7 each ServerDirector has it's own SOA serial number counter that increases after each change on specific ServerDirector. On some circumstances (changing/adding the domain on same day of move/creation) the serial can decrease causing DNS server not to refresh the records.
Solution: Reload the DNS server or wait till refresh rime (3 hours by default).
To reload DomainDirector:
1) Run "sphadmin"
2) Type 31 to stop DomainDirector.
3) Run "sphadmin" again
4) Type 30 to start DomainDirector
To reload external "bind" based DNS server:
Run "rndc A.B.C.D reload" where A.B.C.D is IP address of external DNS server.