The mydns.conf file has a simple, familiar format. It consists
of lines that may contain variables and values, in the format
variable = value
Blank lines are allowed. The # character begins comments, which
are ignored.
The --dump-config option of the mydns program will output
all possible variables in mydns.conf format. (See Creating mydns.conf.)
Boolean values can be yes, no, 1, 0, on, or off.