delete [node node-id] dns clerk -
       manual nameserver name

    Removes the knowledge of a server that exists across a WAN
    from the local clerk's cache.  You can also enter this
    command through the dns$control utility.

    You must have the NET$MANAGE rights identifier (OpenVMS
    systems) or superuser privileges (Tru64 Unix systems).

    The following command removes knowledge of server nrl from the
    clerk cache on node .mfg.umbriel:

    delete node .mfg.umbriel dns clerk manual nameserver nrl