Library /sys$common/syshlp/ncphelp.hlb SET, EXECUTOR, DNS INTERFACE option  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 Specifies whether the local node will obtain node and address
 information from the DECdns namespace to update the node information
 in the volatile  database.  For information about using an existing
 DECdns namespace for  node-name-to-address mapping, see DECnet for
 OpenVMS Networking Manual. There are two options:

 ENABLED   Enables the use of the DECdns namespace, which must already
           exist, for updating the volatile node database.

 DISABLED  Specifies that the node will not use DECdns namespace to
           search for node name and address information.  Only the
           local node database is searched for this information.
           This is the default.