ONC RPC has its own security methods (called authentication in RPC) with
dedicated fields in the ONC RPC call and reply message headers. There are
three types of RPC authentication:
- UNIX authentication, which is used to transmit
the client’s UNIX user ID, group ID, and other identification information.
- Data Encryption Standard (DES) authentication, which
is not available at ONC RPC Version 3.9, and so cannot be used with CICS® ONC RPC.
- Null authentication, which offers no security checking.
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