Library /sys$common/syshlp/nclhelp.hlb set, session_control, application, incoming alias (Tru64 UNIX)  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Specifies how a particular application responds to incoming
    connect requests directed to the alias node address. If False,
    the application does not allow a specified application to receive
    incoming connect requests that have been directed to the alias
    node address.