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Network Working Group                                     Bob ThomasRequest for Comments: #471                                BBN-TENEXNIC #14800                                                March 13, 1973Announcement Of A (Tentative) WorkshopOn Multi Site Executive ProgramsAn executive program is one which accepts and interprets commands from auser, calling upon other programs to provide the resources required tosatisfy each command. There is currently interest in making resources onthe ARPANET available to the user via a standard, conversationalfacility which one might call an ARPANET Executive. With such a facilitya user at a Host site or a TIP could conveniently access a wide range ofresources at other sites without mastering the idiosyncrasies of eachHost operating system which is contributing resources.For example, the ARPANET executive could make it possible to locate (byname) a user logged in anywhere on the network and to establish ateletype link to that user in order to engage in an on-line dialogue. Itcould also provide status information on the subnet and on all Hosts,on-line ARPANET news service, on-line collections of trouble reports,etc.  The range of possible services is practically unlimited once abasic structure is devised for calling upon these services.Major areas of interest here are:1.  How can the interfaces to resources of interest be standardized so    as to be accessible by "server" processes;2.  How can communications with such server processes be standardized?    (an ARPANET Executive protocol?)3.  To what extent can the conversational user interface be standardized    in the user processes? (an ARPANET Executive language?)4.  How can access authentication and accounting procedures be modified    to permit a user to "login" only once, yet use resources at many    Host sites?If you are interested in discussing these and related issues forwardyour name to Bob Thomas (BTHOMAS @BBN-TENEX), Bolt Beranek and Newman,Inc., 50 Moulton Street, Cambridge, Massachusetts 02139, (617) 491-1850,extension 483.  If there is sufficient response, a Workshop (tentativelyplanned for April) will be hosted by the BBN TENEX and BBN TIP groups.The Workshop will permit participants to present relevant work and todiscuss the issues raised above.Thomas                                                          [Page 1]

RFC 471        Workshop On Multi Site Executive Programs      March 1973In the meantime, an example of an executive program which interprets alimited set of commands in a multi-site context is available forexperimental use by TIP and TENEX users. The "N" command of the TIP andthe RSEXEC (Resource Sharing Executive) subsystem on TENEX, providecommand interpretation in the context of TENEX and ITS sites. Userswhose access to the network is neither via a TIP or a TENEX may use theRSEXEC by directing their user TELNET to ICP to socket 367 (Octal) atBBN-TENEX.       [ This RFC was put into machine readable form for entry ]       [ into the online RFC archives by Alex McKenzie with    ]       [ support from GTE, formerly BBN Corp.             9/99 ]Thomas                                                          [Page 2]