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- Network Working Group C. Malamud
- Request for Comments: 1529 Internet Multicasting Service
- Obsoletes: 1486 M. Rose
- Category: Informational Dover Beach Consulting, Inc.
- October 1993
-
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- Principles of Operation for the TPC.INT Subdomain:
- Remote Printing -- Administrative Policies
-
- Status of this Memo
-
- This memo provides information for the Internet community. It does
- not specify an Internet standard. Distribution of this memo is
- unlimited.
-
- Introduction
-
- This document defines the administrative policies for the operation
- of remote printer facilities within the context of the tpc.int
- subdomain. The document describes different approaches to resource
- recovery for remote printer server sites and includes discussions of
- issues pertaining to auditing, security, and denial of access.
-
- The technical procedures for remote printing are defined in [1]. The
- general principles of operation for the tpc.int subdomain are defined
- in [2]. An overview of the remote printing facility is returned when
- electronic mail is sent to tpc-faq@town.hall.org.
-
- Overview of Remote Printing in the TPC.INT Subdomain
-
- The remote printing facility allows a user to image documents on a
- remote printer, defined as a G3-compatible facsimile device connected
- to the public telephone network. The user sends electronic mail to
- an address which includes the phone number associated with the target
- G3-compatible facsimile device. Using the Domain Name System, the
- Internet message-handling infrastructure routes the message to a
- remote printer server, which provides access to devices within a
- specified range of the telephone system numbering plan. The message
- is imaged on the target remote printer and an acknowledgement is sent
- back to the initiator of the message.
-
- The remote printing facility is concerned with outreach, integrating
- the e-mail and G3-compatible facsimile communities into a common
- communications environment. By providing easy access to remote
- printing recipients, enterprise-wide access is enhanced, regardless
- of the kind of institution (e.g., commercial, educational, or
- government), or the size of institution (e.g., global, regional, or
-
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- Malamud & Rose [Page 1]
-
- RFC 1529 Remote Printing -- Administrative Policies October 1993
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- local). Remote printing allows an organization to make it easier for
- electronic mail users to communicate with the personnel in the
- organization who are users of G3-compatible facsimile but not e-mail,
- providing a valuable bridge between the two types of technology.
-
- Models of Operation for Remote Printing Servers
-
- Remote printer servers in the tpc.int subdomain consume resources
- that are typically recovered from neither the initiator nor the
- recipient of the remote printing service. Owing to a lack of
- widespread authentication facilities in the Internet and connected
- message handling domains, it is not currently possible to identify
- the initiator with certainty. Since the request was not initiated by
- the recipient, it is inappropriate for a remote printer gateway to
- accept a request and then attempt to charge the receiver of the
- message before imaging the document on the remote printer.
-
- Several models of resource recovery for remote printer operation are
- possible in the tpc.int subdomain:
-
- Community Library Model
- Neighborhood Grocery Model
- Local Newspaper Model
-
- In the Community Library model, an organization would register a
- remote printer gateway willing to place calls to all devices located
- within the organization's telephone system. Other operators may
- determine that the costs of servicing the immediate vicinity (or even
- a larger area) are minimal and register to serve a portion of the
- telephone address space as a community service.
-
- The Community Library model can apply to a neighborhood, or to an
- organization such as a government R&D Center, a university, or a
- corporation. The library model does not recover costs from the
- particpants, but runs the remote printer as a community service.
-
- In the Neighborhood Grocery model, a commercial organization
- contracts with specific end users, offering to register their
- individual fax numbers in the namespace. This service bureau model
- could be conducted with or without cost recovery from the owner of
- the remote printer device.
-
- The Local Newspaper model recovers the resources needed to operate
- the remote printer service from a third party not directly connected
- with the message exchange. When a document is successfully imaged on
- a remote printer, there are two actions that result. First, a cover
- sheet is constructed and prepended to the document imaged on the
- remote printer. Second, a notification is sent back to the
-
-
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- Malamud & Rose [Page 2]
-
- RFC 1529 Remote Printing -- Administrative Policies October 1993
-
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- initiator. An Internet site running a remote printer server
- registered in the tpc.int subdomain is permitted to acknowledge a
- sponsor in both cases.
-
- Specifically, up to one-third of the area of the cover sheet may be
- used for acknowledgement of the sponsor, and up to 250 bytes of ASCII
- text acknowledging the sponsor may be appended to the notification
- returned to the initiator. Any such sponsor acknowledgement is
- subject to applicable regulations governing the content and form of
- such acknowledgements.
-
- The words "paid advertisement" should be prominently displayed in the
- area containing the message if money has changed hands for the
- transaction. If an organization uses the local newspaper model
- simply to transmit community service messages, then the words "paid
- advertisement" need not be displayed.
-
- Auditing and Security
-
- A remote printer server should maintain a log for auditing and
- security. This log may contain at most the following information:
-
- 1) the date the message was received;
- 2) the "From" and "Message-ID" fields;
- 3) the size of the body;
- 4) the identity (telephone number) of the printer;
- 5) any telephony-related information, such as call
- duration;
- 6) any G3-related information, such recipient ID.
-
- This information is the most that can be kept and may be further
- limited by legal authority with jurisdiction at the site.
-
- The purpose of the log is to maintain accountability and security.
- It is considered a violation of the privacy of the initiator and the
- recipient of the remote printer services to divulge such logs unless
- required by legal authority with jurisdiction at the site. In
- particular, it is a violation of privacy to divulge, either directly
- or indirectly, such information for the compilation of lists for
- marketing purposes.
-
- It is permissible, however, to furnish interested parties with
- summary reports that indicate the number of calls, average length,
- and other summary information provided that such summary information
- could not be used to identify individual initiators or recipients or
- their calling patterns. For example, a remote printer gateway might
- furnish an interested party with a report of the number of calls per
- day and hours logged to a specific local area exchange.
-
-
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- Malamud & Rose [Page 3]
-
- RFC 1529 Remote Printing -- Administrative Policies October 1993
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-
- Remote printer servers operate in a public service capacity and must
- strictly respect the privacy of the contents of messages. Unless
- required by technical or legal considerations, the content of
- messages shall not be monitored or disclosed.
-
- Denial of Access
-
- Internet sites registered in the tpc.int subdomain may deny access
- based on the source but not the destination of the message. If an
- Internet site feels that it is inappropriate to provide access to a
- particular destination, then it should re-register itself
- accordingly.
-
- Denial of access based on source should be made only if required by
- legal authority with jurisdiction at the site or because of abuse.
- In all cases, denial of access should result in a notification
- returned to the initiator indicating the policy that was violated.
- However, if repeated attempts continue to be made by the source,
- repeated notifications are not necessary. Denial of access should be
- distinguished from the inability to provide access. For example,
- improperly formatted messages will prevent access.
-
- Denial of access can occur due to problems in a single message or set
- of messages or because of consistent patterns of abuse. Examples of
- denial on a single message might include an attempt to transmit an
- extremely long document, such as a 100-page memo. Such a document
- might violate local policies limiting the number of pages or
- transmission time.
-
- A more serious problem is long-term abuse of facilities. A remote
- printer server might choose to impose a usage limit on a daily or
- monthly basis. Such limits should be chosen to balance the desire to
- encourage legitimate users with the need to prevent consistent abuse.
-
- At present, it is the responsibility for each Internet site running a
- remote printer server to define a local policy for denial of access.
- This policy should be based on objective criteria, and those criteria
- should be registered with the tpc.int subdomain secretariat at the
- e-mail address tpc-admin@town.hall.org.
-
- Security Considerations
-
- Security issues are not discussed in this memo.
-
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- Malamud & Rose [Page 4]
-
- RFC 1529 Remote Printing -- Administrative Policies October 1993
-
-
- References
-
- [1] Malamud, C., and M. Rose, "Principles of Operation for the
- TPC.INT Subdomain: Remote Printing -- Technical Procedures", RFC
- 1528, Dover Beach Consulting, Inc., Internet Multicasting
- Service, October 1993.
-
- [2] Malamud, C., and M. Rose, "Principles of Operation for the
- TPC.INT Subdomain: General Principles and Policy", RFC 1530,
- Internet Multicasting Service, Dover Beach Consulting, Inc.,
- October 1993.
-
- Authors' Addresses
-
- Carl Malamud
- Internet Multicasting Service
- Suite 1155, The National Press Building
- Washington, DC 20045
- US
-
- Phone: +1 202 628 2044
- Fax: +1 202 628 2042
- Email: carl@malamud.com
-
-
- Marshall T. Rose
- Dover Beach Consulting, Inc.
- 420 Whisman Court
- Mountain View, CA 94043-2186
- US
-
- Phone: +1 415 968 1052
- Fax: +1 415 968 2510
- Email: mrose@dbc.mtview.ca.us
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- Malamud & Rose [Page 5]
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