`-d' DOMAIN
===========
Specifies the host's domain. This sets the internal variable
`${domain}' and affects the `${hostd}' variable.
If this option is not specified and the hostname already contains the
local domain then that is used, otherwise the default value of
`${domain}' is `unknown.domain'.
For example, if the local domain was `doc.ic.ac.uk', Amd could be
started as follows:
amd -d doc.ic.ac.uk ...