Library /sys$common/syshlp/uafhelp.hlb SHOW, /PROXY, Qualifiers, /OLD  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Directs AUTHORIZE to display information from NETPROXY.DAT rather
    than the default file NET$PROXY.DAT.

    If someone modifies the proxy database on a cluster node that is
    running an OpenVMS system prior to Version 6.1, then you can use
    the /OLD qualifier to display the contents of the old database:
    NETPROXY.DAT.