Remote access/security to Oracle7 ?

If I do a:

create user foo identified externally;

...does this mean a user can access an Oracle database given their role using an rhost login from a UNIX system or a DECnet proxy to VMS ? What does Oracle7 use for a transport between remote nodes, i.e. TCP/IP, etal. ?

Regards,
rcs

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Richard C. Secrist           "The superior man understands     +-+-+-+-+-+-+-+
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