"The advantage is that MyDNS simply reads the records
from the database, and it does not have to be restarted/reloaded
when DNS records change or zones are created/edited/deleted. A
secondary nameserver can be easily set up by installing a second
instance of MyDNS that accesses the same database or, to be more
redundant, uses the MySQL master / slave replication features to
replicate the data to the secondary nameserver. MyDNSConfig is an
easy to use web-based interface to MyDNS. MyDNSConfig can create
all types of DNS records that are available in MyDNS and adds
features like user management and access privileges."