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- Network Working Group Tom O'Sullivan
- Request for Comments: 340 Raytheon Company
- NIC 9933 Sudbury, Mass.
- Categories: Telnet
- References: RFC 328 15 May 1972
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- PROPOSED TELNET CHANGES
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- The proposed change to the TELNET protocol calling for one standard
- protocol and dropping the idea of minimum implementation seems
- reasonable at this time.
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- I suggest that both Data Types and Hide Your Input be kept for the
- following reasons:
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- Data Types:
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- The objection stating that switching out of ASCII results in an
- irreversible change and loss of control can be met by requiring other
- codes to provide to a return to ASCII. Each other code may have its
- own return code, however, it may not always be employed. Other codes
- are important for alphanumeric terminals that have special devices
- attached. Several potential cases can be cited:
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- 1. Cal comp plotter attached to a teletype has logic permitting a
- program to turn the plotter on and off. When operating I believe
- it uses an 8 bit code which could conflict with Telnet signals.
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- 2. Numerically controlled machines, either controlled from a user
- terminal or code prepared by a HOST computer to be punched on the
- paper tape punch at a teletype way require the use of an arbitrary
- 8 bit code.
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- 3. Experiments controlled from alphanumeric terminal or sensor data
- collected through a cal-comp like connection may require the use
- of a full 8 bit code.
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- In these cases a transparent data type with a provision for a return
- to ASCII mode seems desirable.
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- [Page 1]
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- Hide Your Input:
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- As more and more use of data base systems in the network is
- considered, the need for and importance of using access keys,
- passwords, etc. grows. The fact that it is difficult to select the
- length of input to be hidden is not a persuasive argument. Potential
- solutions seem to exist, e.g. the protocol could provide for accepting
- length statements from the user program, data base system, operating
- system, etc. and in default of this, use a default length representing
- the server system expected optimum length.
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- [ This RFC was put into machine readable form for entry ]
- [ into the online RFC archives by BBN Corp. under the ]
- [ direction of Alex McKenzie. 12/96 ]
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- [Page 2]
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