... Lisboa11
Ddt is a joint development of the Informatics Department of the Faculty of Sciences of the University of Lisbon and ``PUUG – The Portuguese Unix Systems Users Group'', and has received a grant from ``RCCN Network – Portuguese National R&D Network''
... Unix22
Unix is a Registred Trade Mark of A.T.&T. in the U.S.A and other countries
...ddt-xfer 33
ddt-xfer is a slightly modified version of the bind named-xfer command.
... records44
A glue record is a A RR of a server that doesn't belong to the zone. This server can be a name server for the zone or for a delegated sub-zone