RFC 1206

FYI on Questions and Answers: Answers to commonly asked "new Internet user" questions

๐Ÿ“… published February 1991, from ietf

RFC 1206: FYI on Questions and Answers ๐Ÿ’–

okay bestie, this is RFC 1206, and it's called FYI on Questions and Answers, with the subtitle "Answers to Commonly asked 'New Internet User' Questions" ๐ŸŽ€. It came out of the Network Working Group in February 1991, and it's FYI 4. The authors are Gary Malkin, from FTP Software, Inc., and A. Marine, from SRI ๐Ÿซถ. It's an informational doc, so it doesn't specify any standard. It obsoletes RFC 1177 (so 1177 is officially retired ๐Ÿ™ˆ), and it doesn't list any RFC it updates.


Status of this Memo โœจ

okay so this FYI is one of two FYIs called "Questions and Answers" (Q/A) ๐Ÿ“š. The User Services Working Group of the Internet Engineering Task Force (IETF) made them, and the goal is to write down the most commonly asked questions and answers about the Internet ๐Ÿ’….

This memo just provides information for the Internet community ๐ŸŒˆ. It does not specify any standard. Distribution of this memo is unlimited ๐Ÿฆ‹.


Table of Contents ๐Ÿ“–

   1. Introduction.................................................   1
   2. Acknowledgements.............................................   2
   3. Questions About the Internet.................................   2
   4. Questions About TCP/IP.......................................   4
   5. Questions About the Domain Name System.......................   4
   6. Questions About Internet Documentation.......................   5
   7. Questions about Internet Organizations and Contacts..........   9
   8. Questions About Services.....................................  13
   9. Mailing Lists................................................  16
  10. Miscellaneous "Internet lore" questions.....................  17
  11. Suggested Reading...........................................  18
  12. References..................................................  19
  13. Condensed Glossary..........................................  20
  14. Security Considerations.....................................  31
  15. Authors' Addresses..........................................  32

1. Introduction ๐Ÿงš

new users joining the Internet community have the exact same questions everyone else has ever had ๐Ÿ™ˆ. Our whole mission is to give the community up-to-date, basic Internet knowledge and experience, and to move all the repeated stuff off the electronic mailing lists so the subscribers don't have to read the same questions and answers over and over again ๐Ÿ’€.

future updates of this memo will happen as User Services members spot more questions that should be added, plus any mistakes or inaccuracies that need fixing in this doc โœจ. There's also going to be an additional FYI Q/A covering intermediate and advanced topics, so stay tuned ๐Ÿ‘‘.

the Q/A mailing lists are maintained by Gary Malkin at FTP.COM ๐Ÿ’Œ. A subgroup of the User Services Working Group uses them to talk about the Q/A FYIs. There are three of them:

  • quail@ftp.com: this is the discussion list ๐Ÿ’ฌ. Its main job is pre-release review of the Q/A FYIs.
  • quail-request@ftp.com: this is how you join the quail mailing list ๐ŸŽ€.
  • quail-box@ftp.com: this is a write-only list ๐Ÿ“ฅ that acts as a repository for candidate questions and answers. You don't have to be on the quail list to send stuff to the quail-box, so no pressure ๐Ÿซถ.

2. Acknowledgements ๐Ÿซถ

huge thanks to the following people for their help and contributions to this FYI Q/A ๐Ÿ’œ: Vint Cerf (CNRI), Ralph Droms (Bucknell), Tracy LaQuey Parker (UTexas), Craig Partridge (SICS), Jon Postel (ISI), Joyce K. Reynolds (ISI), Karen Roubicek (BBNST), Marty Schoffstall (PSI, Inc.), Patricia Smith (Merit), Gene Spafford (Purdue) and James Van Bokkelen (FTP Software, Inc.) ๐Ÿ™Œ.


3. Questions About the Internet ๐ŸŒ

What is the Internet? ๐Ÿค”

the Internet is a massive collection of networks, and every single one of them runs the TCP/IP protocols ๐ŸŒ. They're all tied together so that users on any one of the networks can use the network services TCP/IP provides to reach users on any of the other networks. The Internet started with the ARPANET, but now it includes networks like NSFNET, NYSERnet, and thousands of others ๐Ÿ”ฅ. There are other major wide area networks, like BITNET and DECnet networks, that aren't based on TCP/IP, so they aren't part of the Internet. BUT it's still possible to talk between them and the Internet over electronic mail, because mail gateways act as "translators" between the different network protocols involved ๐Ÿ’Œ.

Note: you'll often see "internet" with a small "i" ๐Ÿ™ˆ. That could refer to any network built on TCP/IP, or it might mean networks using other protocol families that are composites built out of smaller networks.

I just got on the Internet. What can I do now? ๐Ÿฆ‹

you now have access to all the resources you're allowed to use on your own Internet host ๐Ÿ’ป, on any other Internet host where you have an account, and on any other Internet host that offers publicly accessible information ๐ŸŒธ. The Internet lets you move information between these hosts with file transfers ๐Ÿ“ฆ. Once you're logged into one host, you can use the Internet to open a connection to another one, log in, and use its services interactively. This is known as remote login or "TELNETTING" ๐Ÿ˜ญ. You can also send electronic mail to users at any Internet site, and to users on lots of non-Internet sites that are reachable by electronic mail ๐Ÿ’….

there are plenty of other services too โœจ. For example, some hosts give you access to specialized databases or to archives of information. The Internet Resource Guide tells you about some of these sites, and it lists facilities on the Internet that are available to users, like supercomputer centers, library catalogs and specialized data collections ๐Ÿงš. The guide is published by the NSF Network Service Center (NNSC) and it's continuously being updated ๐Ÿ”ฅ. The Resource Guide is free by e-mail (send a note to resource-guide-request@nnsc.nsf.net to join the e-mail distribution) and by anonymous FTP (in nnsc.nsf.net:resource-guide/*) ๐Ÿ’–. You can get a hardcopy for a nominal fee, just to cover reproduction costs, from the NNSC. Call the NNSC at 617-873-3400 for more info ๐Ÿ“ž.

How do I find out if a site has a computer on the Internet? ๐Ÿ•ต๏ธโ€โ™€๏ธ

three good sources to check are "!%@:: A Directory of Electronic Mail Addressing and Networks" by Donnalyn Frey and Rick Adams ๐Ÿ“˜, "The User's Directory of Computer Networks", by Tracy LaQuey ๐Ÿ“—, and "The Matrix: Computer Networks and Conferencing Systems Worldwide", by John Quarterman ๐Ÿ“•.

it's also possible to find some info about Internet sites in the WHOIS database, which is maintained at the DDN NIC at SRI International ๐ŸŒŸ. The DDN NIC (Defense Data Network, Network Information Center) gives you an information retrieval interface to that database, and it's also called WHOIS. To use it, TELNET to NIC.DDN.MIL and type whois (carriage return) ๐Ÿ’ป. No login is necessary, which is very chill ๐Ÿ˜Œ. Type help at the whois prompt for more info on using the facility ๐Ÿ’ก. Just know that WHOIS will show lots of sites, but it might not show every site registered with the DDN NIC. That's just because of how the program is set up to search the database ๐Ÿ™ˆ.


4. Questions About TCP/IP ๐Ÿ’ซ

What is TCP/IP? ๐Ÿค“

TCP/IP (Transmission Control Protocol/Internet Protocol) [4,5,6] is the common name for a family of over 100 data-communications protocols ๐Ÿงฉ. They're used to organize computers and data-communications equipment into computer networks. TCP/IP was developed to interconnect hosts on ARPANET, PRNET (packet radio), and SATNET (packet satellite) ๐Ÿ›ฐ๏ธ. All three of those networks have since been retired, but TCP/IP lives on ๐Ÿ‘‘. It's used right now on a huge international network of networks called the Internet, whose members include universities, other research institutions, government facilities, and lots of corporations ๐Ÿข. TCP/IP is also sometimes used for other networks, especially local area networks that tie together all kinds of different computers or engineering workstations ๐Ÿ’….

What are the other well-known standard protocols in the TCP/IP family? ๐Ÿง

okay so besides TCP and IP, the three main protocols in the TCP/IP suite are the Simple Mail Transfer Protocol (SMTP) [8], the File Transfer Protocol (FTP) [3], and the TELNET Protocol [9] ๐Ÿ“ฌ. There are tons of other protocols used on the Internet too ๐ŸŒˆ. The Internet Activities Board (IAB) regularly publishes an RFC [2] that describes where the various Internet protocols stand in standardization. That document is the best guide to the current status of Internet protocols and their recommended usage ๐ŸŽ€.


5. Questions About the Domain Name System ๐Ÿ—บ๏ธ

What is the Domain Name System? ๐ŸŒ

the Domain Name System (DNS) is a hierarchical, distributed method of organizing the name space of the Internet ๐Ÿ—‚๏ธ. The DNS groups hosts administratively into a hierarchy of authority, which lets addressing and other info be widely distributed and maintained ๐Ÿ’œ. The big advantage of the DNS is that using it gets rid of the need for a centrally-maintained file that maps host names to addresses. Iconic, honestly ๐Ÿ‘‘.

What is a Fully Qualified Domain Name? ๐Ÿท๏ธ

a Fully Qualified Domain Name (FQDN) is a domain name that includes all the higher level domains relevant to the entity it names ๐Ÿ”ฅ. Think of the DNS as a tree structure where every node has its own label. The FQDN for a specific node is its label, followed by the labels of all the other nodes between it and the root of the tree ๐ŸŒณ. For a host, that means the string identifying the particular host, plus every domain the host is part of, up to and including the top-level domain. The root domain is always null, which is so random but true ๐Ÿ™ˆ. For example, PARIS.NISC.SRI.COM is a Fully Qualified Domain Name for the host at 192.33.33.109 ๐Ÿ’–. And NISC.SRI.COM is the FQDN for the NISC domain ๐Ÿฆ‹.

6. Questions About Internet Documentation ๐Ÿ“šโœจ

What is an RFC? ๐Ÿค”

okay so the Request for Comments documents (RFCs) are basically the working notes of the Internet research and development community ๐Ÿ“. A doc in this series can be about literally any topic related to computer communication ๐Ÿ’…, from a meeting report all the way up to the specification of a standard ๐Ÿคฏ. Submissions go to the RFC Editor, Jon Postel (POSTEL@ISI.EDU) ๐Ÿ’Œ.

Most RFCs describe network protocols or services, usually with detailed procedures and formats for how to implement them ๐Ÿ› ๏ธ. Others report on the results of policy studies or sum up what technical committees or workshops got up to ๐Ÿง . All RFCs are considered public domain unless they're explicitly marked otherwise ๐ŸŒˆ.

RFCs aren't refereed publications, but they do get technical review from the task forces, individual technical experts, or the RFC Editor, depending on what's needed ๐Ÿ”. Right now most standards get published as RFCs, but not all RFCs specify standards, so don't assume ๐Ÿ™ˆ.

Anyone can submit a document for publication as an RFC ๐Ÿ™‹โ€โ™€๏ธ. Submissions must be made via electronic mail to the RFC Editor. Check out RFC 1111, "Instructions to RFC Authors" [10], for more info ๐Ÿ“–. RFCs are available in public access files, and a short message gets sent to a notification distribution list announcing the memo ๐Ÿ“ฌ. To get added to that list, send your request to RFC-REQUEST@NIC.DDN.MIL ๐Ÿ’•.

The online files get copied by people who print or display them on their own equipment ๐Ÿ–จ๏ธ. (An RFC can also be sent back by email if you send an email query.) That means the format of the online files must meet the constraints of a wide variety of printing and display equipment ๐ŸŽ€.

Once a doc gets an RFC number and is published, that RFC is never revised or re-issued with the same number ๐Ÿ”’. So there's never a question of which one is the most recent version of a particular RFC ๐Ÿ’ฏ. However, a protocol (like File Transfer Protocol (FTP)) can get improved and re-documented many times across several different RFCs ๐Ÿ”„. It's important to verify you have the most recent RFC on a particular protocol โš ๏ธ. The "IAB Official Protocol Standards" [2] memo is the reference for working out the correct RFC to look at for the current specification of each protocol ๐Ÿ‘‘.

How do I obtain RFCs? ๐Ÿ“ฅ

RFCs can be grabbed via FTP from NIC.DDN.MIL, with the pathname RFC:RFCnnnn.TXT or RFC:RFCnnnn.PS (where "nnnn" is the number of the RFC) ๐Ÿ’พ. Log in with FTP using username anonymous and password guest. The NIC also has an automatic mail service for sites that can't use FTP ๐Ÿ“ง. Send the request to SERVICE@NIC.DDN.MIL and put the RFC number in the subject line, like Subject: RFC nnnn (or Subject: RFC nnnn.PS for PostScript RFCs) ๐Ÿ’Œ.

RFCs can also be grabbed via FTP from NIS.NSF.NET ๐ŸŒ. Log in with username anonymous and password guest, then cd RFC to hop into the RFC directory ๐Ÿ“‚. The file name looks like RFCnnnn.TXT-1 (where "nnnn" is the RFC number) โœจ. The NIS also has an automatic mail service for sites that can't use FTP. Send it to NIS-INFO@NIS.NSF.NET and leave the subject field blank. The first line of the message text must be SEND RFCnnnn.TXT-1, with nnnn swapped for the RFC number ๐Ÿซถ.

Requests for special distribution should be addressed to either the author of the RFC in question or to NIC@NIC.DDN.MIL ๐Ÿ’…. SRI International runs NIC.DDN.MIL and also offers a hardcopy subscription service for RFCs, plus several publications that bundle together RFCs defining Internet standards ๐Ÿ“š. Unless the RFC itself specifically says otherwise, all RFCs are for unlimited distribution ๐ŸŒธ.

How do I obtain a list of RFCs? ๐Ÿ—‚๏ธ

The NIC keeps an index file of the RFCs ๐Ÿ—ƒ๏ธ. It lists each RFC, starting with the most recent, and for each one gives the number, title, author(s), issue date, and number of hardcopy pages ๐Ÿ“. It also lists the online formats (PostScript or ASCII text) for each RFC and the number of bytes each version takes up online on the NIC.DDN.MIL host ๐Ÿ’พ. If an RFC is also an FYI, that's noted with the FYI number (there's a parallel FYI Index too ๐Ÿงš). Finally, the Index notes whether an RFC is obsoleted or updated by another RFC and gives that RFC's number, or if an RFC itself obsoletes or updates another RFC and gives that RFC number ๐Ÿ”. The index gets updated online each time an RFC is issued โฐ.

The RFC Index is available online from the NIC.DDN.MIL host as RFC:RFC-INDEX.TXT ๐ŸŒŸ. The FYI Index is online as FYI:FYI-INDEX.TXT ๐Ÿ’œ. You can also get it in hardcopy from the NIC for $10, same as individual RFCs ๐Ÿ’ธ. Call the NIC at 1-800-235-3155 if you need help getting the file ๐Ÿ“ž.

Which RFCs are Standards? ๐Ÿ†

See "IAB Official Protocol Standards" (currently, RFC 1140) [2] ๐Ÿ‘‘.

What is an Internet Draft? Are there any guidelines available for writing one? โœ๏ธ

Internet Drafts (I-D's) are the current working documents of the IETF ๐Ÿ› ๏ธ. They're generally in the format of an RFC, with some key differences:

  • The Internet Drafts are not RFC's and are not a numbered document series.
  • The words INTERNET-DRAFT appear in place of RFC XXXX in the upper left-hand corner ๐Ÿ™ƒ.
  • The document does not refer to itself as an RFC or as a Draft RFC.
  • An Internet Draft does not state nor imply that it is a proposed standard. To do so conflicts with the role of the IAB, the RFC Editor, and the Internet Engineering Steering Group (IESG) ๐Ÿšซ.

An Internet Drafts Directory has been installed so IETF members can review and comment on draft documents that will eventually go to the IAB and the RFC Editor to be considered for publishing as an RFC ๐Ÿ‘€. The Internet Drafts Directories are maintained primarily at the NSFNET Network Service Center (NNSC), and there are several "shadow" machines that contain the IETF and Internet Drafts Directories ๐Ÿชž:

NSF Network Service Center:  nnsc.nsf.net
DDN NIC:  nic.ddn.mil
Pacific Rim:  munnari.oz.au
Europe:  nic.nordu.net (192.36.148.17)

To access these directories, use anonymous FTP. Log in with username "anonymous" and password "guest". Once you're logged in, cd internet-drafts, and then the Internet Draft files can be retrieved ๐Ÿƒโ€โ™€๏ธ.

For further information on the Internet Drafts of the IETF, or if you have problems retrieving Internet Draft documents, contact Megan Davies (mdavies@nri.reston.va.us) or Greg Vaudreuil (gvaudre@nri.reston.va.us) for assistance ๐Ÿซถ.

How do I obtain OSI Standards documents? ๐ŸŒ

OSI Standards documents are NOT available from the Internet via anonymous FTP due to copyright restrictions ๐Ÿ™…โ€โ™€๏ธ. These are available from:

Omnicom Information Service
501 Church Street NE
Suite 304
Vienna, VA  22180  USA
Telephone: (800) 666-4266 or (703) 281-1135
Fax: (703) 281-1505

However, the GOSIP specification, which covers the use of OSI protocols within the U.S. Government, is available from the NIC and from the National Institute of Standards and Technology (NIST) ๐Ÿ‡บ๐Ÿ‡ธ. The final text of GOSIP Version 2 is now available from both sites ๐ŸŽ‰. Version 2 is expected to become a Federal Information Processing Standard (FIPS) in early 1991 ๐Ÿ“….

Online sources, available through anonymous ftp from osi.ncsl.nist.gov (129.6.48.100) as:

./pub/gosip/gosip_v2.txt        -- ascii
./pub/gosip/gosip_v2.txt.Z      -- ascii compressed
./pub/gosip/gosip_v2.ps         -- PostScript
./pub/gosip/gosip_v2.ps.Z       -- PostScript compressed

Also available through anonymous ftp from nic.ddn.mil (192.67.67.20) as:

PROTOCOLS:GOSIP-V2.TXT        -- ascii
PROTOCOLS:GOSIP-V2.PS         -- PostScript

Hardcopy sources:

Standards Processing Coordinator (ADP)
National Institute of Standards and Technology
Technology Building, Room B-64
Gaithersburg, MD  20899
(301) 975-2816

Network Information Systems Center
SRI International, Room EJ291
333 Ravenswood Ave.
Menlo Park, CA  94025
1-800-235-3155

7. Questions about Internet Organizations and Contacts โœจ

okay bestie, this is the org chart section and it's SO important, so let's get into it ๐Ÿงš

What is the IAB? ๐ŸŒธ

okay so the Internet Activities Board (IAB) is the coordinating committee for Internet design, engineering and management [7]. ๐Ÿ’… IAB members are seriously dedicated to keeping the Internet running well and growing into a huge, super fast future ๐Ÿ”ฅ The chairman serves a two-year term and gets elected by the other IAB members ๐Ÿ—ณ๏ธ The current Chair of the IAB is Vint Cerf ๐Ÿ‘‘ The IAB is all about the TCP/IP protocol suite, plus extending the Internet system so it can support multiple protocol suites โœจ

here's what the IAB actually does:

  1. Sets Internet Standards ๐Ÿ“œ
  2. Manages the RFC publication process ๐Ÿ“š
  3. Reviews how the IETF and IRTF are running ๐Ÿ”
  4. Does strategic planning for the Internet, spotting long-range problems and opportunities ๐Ÿ”ญ
  5. Acts as an international technical policy liaison and representative for the Internet community, and ๐ŸŒ
  6. Resolves technical issues that can't be handled within the IETF or IRTF frameworks ๐Ÿ› ๏ธ

the IAB has two main subsidiary task forces ๐ŸŽ€

  • Internet Engineering Task Force (IETF)
  • Internet Research Task Force (IRTF)

each of these Task Forces is led by a chairman and guided by a Steering Group, which reports to the IAB through its chairman ๐Ÿ’– For the most part, a collection of Research or Working Groups carries out the work program of each Task Force ๐Ÿฆ‹

All decisions of the IAB are made public ๐ŸŒˆ The main way IAB decisions get passed along to everyone who cares about the Internet and its TCP/IP protocol suite is the Request for Comments (RFC) note series and the Internet Monthly Report ๐Ÿ“ฐ


What is the IANA? ๐Ÿฆ‹

the task of coordinating the assignment of values to protocol parameters was handed off by the Internet Activities Board (IAB) to the Internet Assigned Numbers Authority (IANA) ๐Ÿซถ These protocol parameters include op-codes, type fields, terminal types, system names, object identifiers, and so on ๐Ÿงฉ The "Assigned Numbers" Request for Comments (RFC) [1] is where you can look up the values that are currently assigned from several series of numbers used in network protocol implementations ๐Ÿ“– Internet addresses and Autonomous System numbers are assigned by the Network Information Center at SRI International. That job was delegated by the IANA to the DDN NIC, which serves as the Internet Registry ๐Ÿ—‚๏ธ And the IANA is located at USC/Information Sciences Institute ๐Ÿ“

the current types of assignments listed in Assigned Numbers and maintained by the IANA are:

  • Address Resolution Protocol Parameters
  • ARPANET and MILNET X.25 Address Mappings
  • ARPANET and MILNET Logical Addresses
  • ARPANET and MILNET Link Numbers
  • BOOTP Parameters and BOOTP Extension Codes
  • Domain System Parameters
  • IANA Ethernet Address Blocks
  • Ethernet Numbers of Interest
  • IEEE 802 Numbers of Interest
  • Internet Protocol Numbers
  • Internet Version Numbers
  • IP Time to Live Parameter
  • IP TOS Parameters
  • Machine Names
  • Mail Encryption Types
  • Multicast Addresses
  • Network Management Parameters
  • Point-to-Point Protocol Field Assignments
  • PRONET 80 Type Numbers
  • Port Assignments
  • Protocol and Service Names
  • Protocol/Type Field Assignments
  • Public Data Network Numbers
  • Reverse Address Resolution Protocol Operation Codes
  • TELNET Options
  • Terminal Type Names
  • Unix Ports
  • X.25 Type Numbers

for more info on number assignments, hit up IANA@ISI.EDU ๐Ÿ’Œ


What is a NIC? What is a NOC? ๐Ÿ™ˆ

"NIC" stands for Network Information Center ๐Ÿ’โ€โ™€๏ธ It's an organization that gives network users information about the services the network provides ๐Ÿ“ก

"NOC" stands for Network Operations Center ๐Ÿ› ๏ธ It's the organization responsible for maintaining a network ๐Ÿ”ง

for lots of networks, especially smaller local ones, the NIC and NOC functions are combined ๐Ÿ“ For bigger networks, like mid-level and backbone networks, the NIC and NOC are separate organizations. They still have to interact to fully perform their functions ๐Ÿค


What is "The NIC"? ๐Ÿ’œ

"The NIC" is the Defense Data Network, Network Information Center (DDN NIC) at SRI International ๐Ÿ›๏ธ It's the network information center that holds a primary repository for RFCs and Internet Drafts ๐Ÿ“š The host name is NIC.DDN.MIL. Shadow copies of the RFCs and the Internet Drafts are maintained by the NSFNET on NIS.NSF.NET ๐Ÿชž

the DDN NIC also offers various user assistance services for DDN users. For more info, contact NIC@NIC.DDN.MIL or call 1-800-235-3155 ๐Ÿ“ž On top of that, the DDN NIC is the Internet registration authority for the root domain and several top and second level domains ๐ŸŒ It maintains the official DoD Internet Host Table, is the site of the Internet Registry (IR), and maintains the WHOIS database of network users, hosts, domains, networks, and Points of Contact ๐Ÿ—ƒ๏ธ that's a lot of responsibility, periodt ๐Ÿ’…


What is the IR? ๐Ÿงš

the Internet Registry (IR) is the organization responsible for assigning identifiers, like IP network numbers and autonomous system numbers, to networks ๐Ÿ”ข It also gathers and registers that assigned information ๐Ÿ“ The IR may, in the future, allocate the authority to assign network identifiers to other organizations. However, it will continue to gather data about those assignments ๐Ÿ” At present, the DDN NIC at SRI International serves as the IR โœจ


What is the IETF? ๐ŸŒท

the Internet has grown to include a huge number of widely geographically dispersed networks in academic and research communities ๐ŸŒ It now provides infrastructure for a broad community with all kinds of interests. The family of Internet protocols and system components has also moved from experimental to commercial development ๐Ÿš€ To help coordinate the operation, management and evolution of the Internet, the IAB established the Internet Engineering Task Force (IETF) ๐ŸŽ€

the IETF is chaired by Phill Gross and managed by its Internet Engineering Steering Group (IESG) ๐Ÿ‘‘ It's a large open community of network designers, operators, vendors, and researchers who care about the Internet and the Internet protocol suite ๐Ÿซถ It's organized around a set of several technical areas, and each one is managed by a technical area director ๐Ÿ—‚๏ธ Besides the IETF Chairman, the area directors make up the IESG membership ๐Ÿ’ซ

the IAB has delegated the IESG the general responsibility for making the Internet work. That includes resolving all short- and mid-range protocol and architectural issues required to make the Internet function effectively ๐Ÿ› ๏ธ


What is the IRTF? ๐Ÿฆ‹

to promote research in networking and the development of new technology, the IAB established the Internet Research Task Force (IRTF) ๐Ÿ”ฌ

in the area of network protocols, the line between research and engineering isn't always clear, so the IETF and IRTF sometimes overlap ๐ŸŒ€ There's actually a lot of overlap in membership between the two groups too. That overlap is seen as vital for cross-fertilization and technology transfer ๐Ÿ’œ

the IRTF is a community of network researchers, generally with an Internet focus ๐ŸŒธ Its work is governed by its Internet Research Steering Group (IRSG). The chairman of the IRTF and IRSG is David Clark ๐ŸŒˆ

8. Questions About Services โœจ

How do I find someone's electronic mail address? ๐Ÿ”

Okay so there are a bunch of directories on the Internet, but none of them are complete, bestie ๐Ÿ˜ญ The biggest ones are the WHOIS database at the DDN NIC, the PSInet White Pages, and KNOWBOT. Honestly, it's still usually necessary to just ask the person for their email address ๐Ÿ’…

How do I use the WHOIS program at the DDN NIC? ๐Ÿ•ต๏ธโ€โ™€๏ธ

To search the WHOIS database at the DDN NIC, you TELNET to the NIC host, NIC.DDN.MIL. There's no need to login ๐Ÿ™Œ Type whois to call up the information retrieval program. Next, type the name of the person, host, domain, network, or mailbox you need info on. If you're only typing part of the name, end your search string with a period. Type help for a more in-depth explanation of what you can search for and how you can search โœจ

If you have trouble, send a message to NIC@NIC.DDN.MIL or call 1-800-235-3155. Bug reports can be sent to BUG-WHOIS@NIC.DDN.MIL, and suggestions for improvements to the program can be sent to SUGGESTIONS@NIC.DDN.MIL ๐Ÿฆ‹

How do I become registered in the DDN NIC's WHOIS database? ๐Ÿ“

If you want to be listed in the WHOIS database, you must have an electronic mailbox accessible from the Internet. First, grab the file NETINFO:USER-TEMPLATE.TXT. You can either retrieve it via anonymous FTP from NIC.DDN.MIL or get it through electronic mail. To get it by email, send a message to SERVICE@NIC.DDN.MIL and put the file name in the subject line, like this:

Subject: NETINFO USER-TEMPLATE.TXT

The file will be returned to you overnight ๐ŸŒ™

Fill out the name and address information the file asks for, then send it back to REGISTRAR@NIC.DDN.MIL. Your application will be processed and you'll be added to the database. Unless you're an official Point of Contact for a network entity registered at the DDN NIC, the DDN NIC will not regularly poll you for updates, so you should remember to send corrections whenever your contact data changes ๐Ÿซถ

How do I use the White Pages at PSI? ๐Ÿ“–

Performance Systems International, Inc. (PSI), sponsors a White Pages Pilot Project that collects personnel information from member organizations into a database and provides online access to that data. This effort is based on the OSI X.500 Directory standard ๐Ÿงš

To access the data, TELNET to WP.PSI.COM and login as fred (no password is necessary). You can now look up information on participating organizations. The program provides help on usage: typing help shows you a list of commands, manual gives detailed documentation, and whois tells you how to find references to people. For a list of the organizations participating in the pilot project by providing information about their members, type whois -org * ๐Ÿ’œ

For more information, send a message to WP-INFO@PSI.COM.

How do I use the Knowbot Information Service? ๐Ÿค–

The Knowbot Information Service is a white pages "meta-service" that gives you one uniform interface to heterogeneous white pages services on the Internet. With it, you can form a single query that searches the NIC WHOIS service, the CSNET WHOIS service, the PSI White Pages Pilot Project, and MCI Mail, among others, and get the responses displayed in a single, uniform format. Main character energy ๐Ÿ’…

Right now, you can reach it through TELNET to port 185 on the hosts nri.reston.va.us and sol.bucknell.edu. From a UNIX host, use this:

telnet nri.reston.va.us 185

There's also an electronic mail interface. You send mail to netaddress at either nri.reston.va.us or sol.bucknell.edu ๐Ÿ“ฌ

The commands help and man summarize the command interface. Simply entering a user name at the prompt searches a default list of Internet directory services for the info you asked for. Organization and country info can be included through the syntax userid@organization.country. For example, the queries droms@bucknell and kille@ucl.gb are both valid. Note that these are not Domain Names, but rather a syntax to specify an organization and a country for the search ๐Ÿ™ˆ

The default list of directory services currently includes the whois services at the SRI NIC and the CSNET NIC, plus the white pages service for MCIMail. If an organization is specified, the PSI X.500 service is also searched. Other services can be requested explicitly โœจ

What is Usenet? What is Netnews? ๐Ÿ“ฐ

Usenet and Netnews are the common names of a distributed computer bulletin board system that some computers on the Internet participate in. It's not strictly an Internet service, because many computers that aren't on the Internet also take part. Netnews can be a valuable tool for economizing what might otherwise be a large volume of traffic from electronic mailing lists ๐ŸŒธ

How do I get on Usenet? How do I get Netnews on my computer? ๐Ÿ’ป

To get on Usenet, you must acquire the software, which is available for some computers at no cost from some anonymous FTP sites across the Internet. You must also find an existing Usenet site that's willing to support a connection to your computer. In many cases, this "connection" merely represents additional traffic over existing Internet access channels ๐ŸŒˆ

What is anonymous FTP? ๐ŸŽ€

Anonymous FTP is a conventional way of allowing you to sign on to a computer on the Internet and copy specified public files from it [3]. Some sites offer anonymous FTP to distribute software and various kinds of information. You use it like any FTP, but the username is anonymous. Many systems will allow any password and request that the password you choose is your userid. If this fails, the generic password is usually guest ๐Ÿซง

What is "TELNET"? ๐Ÿ–ฅ๏ธ

The term "TELNET" refers to the remote login that's possible on the Internet because of the TELNET Protocol [9]. Used as a verb, as in "telnet to a host," it means to establish a connection across the Internet from one host to another. Usually, you must have an account on the remote host to be able to login to it once you've made a connection. However, some hosts, such as those offering white pages directories, provide public services that don't require a personal account ๐Ÿฆ‹


9. Mailing Lists ๐Ÿ’Œ

What is a mailing list? ๐Ÿ“ฌ

A mailing list is really nothing more than an alias that has multiple destinations. They're usually created to discuss specific topics, and anybody interested in that topic may (usually) join the list. Some mailing lists have membership restrictions, others have message content restrictions, and still others are moderated. Most large, "public" mailing lists, such as IETF and TCP-IP, have an additional mail address where requests to be added or deleted may be sent. Usually, these are of the form listname-request ๐Ÿ“

There's a "list-of-lists" file available on the host ftp.nisc.sri.com that lists most of the major mailing lists, describes their primary topics, and explains how to subscribe to them. The file is available for anonymous ftp in the netinfo directory as interest-groups (that is, the path is netinfo/interest-groups). It can also be obtained via electronic mail. Send a message to mail-server@nisc.sri.com with the body of the message reading Send netinfo/interest-groups, and the file will be returned in moderate size pieces via electronic mail ๐Ÿงšโ€โ™€๏ธ

How do I contact the administrator of a mailing list rather than posting to the entire list? ๐Ÿ™‹โ€โ™€๏ธ

For every mailing list mentioned in the "interest-groups" file, there's a description of how to join the list or send other such administrative messages to the person in charge of it. In general, though, it's usually safe to assume that you can send a message to an address in the format ListName-request@domain. The convention of having a parallel mailbox conforming to the "-request" format is very widely followed. All administrative messages regarding using, joining, or quitting the list should be sent to that mailbox instead of to the whole list, so that the readers of the list don't have to read them ๐Ÿ™ˆ

What are some good mailing lists or news groups? ๐ŸŒŸ

The TCP-IP, IETF, and RFC Distribution lists are the primary lists for new Internet users who want more information about current and emerging developments on the Internet. The first two are unmoderated discussion lists, and the last one is an announcement service used by the RFC Editor ๐Ÿ‘‘

How do I subscribe to the TCP-IP mailing list? ๐Ÿ’–

To be added to the TCP-IP mailing list, send a message to:

TCP-IP-REQUEST@NIC.DDN.MIL

How do I subscribe to the IETF mailing list? ๐Ÿ’œ

To be added to the IETF mailing list, send a message to:

IETF-REQUEST@ISI.EDU

How do I subscribe to the RFC Distribution list? ๐Ÿฆ„

To be added to the RFC Distribution list, send a message to:

RFC-REQUEST@NIC.DDN.MIL

10. Miscellaneous "Internet lore" questions ๐Ÿงš

What does :-) mean?

Okay so in lots of emails you need a way to say something is meant as a joke, or to show a feeling that plain words can't quite carry ๐Ÿ’… That's how the "smiley faces" came about. Tilt your head to the left and :-) becomes a smiling face ๐Ÿ˜ญ Here are some faves:

:-)  smile

:)   also a smile

:-D  laughing

:-}  grin

:-]  smirk

:-(  frown

;-)  wink

8-)  wide-eyed

:-X  close mouthed

:-o  oh, no!

What do "btw", "fyi", "imho", "wrt", and "rtfm" mean?

People are always shortening stuff in online posts ๐Ÿ™ˆ So: "btw" is "by the way", "fyi" is "for your information", "imho" is "in my humble [or honest] opinion", "wrt" is "with respect to", and "rtfm" is "read the f*ing manual" ๐Ÿ’€ (the "f" word depends on how heated the reader is, lol).

What is the "FAQ" list?

The FAQ list is a set of answers to "Frequently Asked Questions" that keep popping up in various Usenet newsgroups โœจ It gets posted every four to six weeks to news.announce.newusers. It's basically a background guide for new users learning how to use the news, and since it answers their questions up front, the newsgroups themselves stay less repetitive ๐ŸŒธ Specific newsgroups often have their own FAQ versions tailored to their topics, too.

Other info gets posted all the time as well. Here are the subject lines of some general information postings on Usenet:

Answers to Frequently Asked Questions  (the "FAQ" list)
Introduction to news.announce
Rules for posting to Usenet
How to Create a New Newsgroup
How to Create a New Trial Newsgroup
A Primer on How to Work With the Usenet Community
Emily Postnews Answers Your Questions on Netiquette
Hints on writing style for Usenet
USENET Software: History and Sources
List of Active Newsgroups
Alternative Newsgroup Hierarchies
How to Construct the Mailpaths File
Regional Newsgroup Hierarchies
List of Moderators
Publicly Accessible Mailing Lists
List of Periodic Informational Postings
How to Get Information about Networks
A Guide to Social Newsgroups and Mailing Lists

11. Suggested Reading ๐Ÿ“š

If you want to go deeper on the Internet and its protocols in general, these are the reads I'd grab ๐ŸŽ€

Bowers, K., T. LaQuey, J. Reynolds, K. Roubicek, M. Stahl, and A. Yuan, "Where to Start - A Bibliography of General Internetworking Information", RFC 1175, FYI 3, CNRI, U Texas, ISI, BBN, SRI, Mitre, August 1990.

Comer, D., "Internetworking with TCP/IP: Principles, Protocols, and Architecture", Prentice Hall, New Jersey, 1989.

Krol, E., "The Hitchhikers Guide to the Internet", RFC 1118, University of Illinois Urbana, September 1989.

12. References ๐Ÿฆ‹

[1] Reynolds, J., and J. Postel, "Assigned Numbers", RFC 1060, USC/Information Sciences Institute, March 1990.

[2] Postel, J., Editor, "IAB Official Protocol Standards", RFC 1140, Internet Activities Board, May 1990.

[3] Postel, J., and J. Reynolds, "File Transfer Protocol (FTP), RFC 959, USC/Information Sciences Institute, October 1985.

[4] Postel, J., "Internet Protocol - DARPA Internet Program Protocol Specification", RFC 791, DARPA, September 1981.

[5] Postel, J., "Transmission Control Protocol - DARPA Internet Program Protocol Specification", RFC 793, DARPA, September 1981.

[6] Leiner, B., R. Cole, J. Postel, and D. Mills, "The DARPA Internet Protocol Suite", IEEE INFOCOM85, Washington D.C., March 1985. Also in IEEE Communications Magazine, March 1985. Also as ISI/RS-85-153.

[7] Cerf, V., "The Internet Activities Board" RFC 1160, CNRI, May 1990.

[8] Postel, J., "Simple Mail Transport Protocol", RFC 788, USC/Information Sciences Institute, November 1981.

[9] Postel, J., and J. Reynolds, "TELNET Protocol Specification", RFC 854, USC/Information Sciences Institute, May 1983.

[10] Postel, J., "Request for Comments on Request for Comments - Instructions to RFC Authors", RFC 1111, USC/Information Sciences Institute, August 1989.

13. Condensed Glossary ๐Ÿ“

Computers have their own terminology, just like any profession ๐Ÿ’– So here's a condensed glossary to help you make sense of the Internet world โœจ

  • ACM (Association for Computer Machinery): a group set up in 1947 to promote professional development and research on computers.
  • address: there are two separate uses of this term in internet networking, "electronic mail address" and "internet address". An electronic mail address is the string of characters you have to give an electronic mail program to send a message to a particular person. See "internet address" for its definition.
  • AI (Artificial Intelligence): the branch of computer science that deals with simulating human intelligence with computer systems.
  • AIX (Advanced Interactive Executive): IBM's version of Unix.
  • ANSI (American National Standards Institute): a group that certifies organizations developing U.S. standards for the information processing industry. ANSI accredited groups take part in defining network protocol standards.
  • ARP (Address Resolution Protocol): an Internet protocol that runs on Ethernet and all IEEE 802.X LANs, mapping internet addresses to MAC addresses.
  • ARPA (Advanced Research Projects Agency): the former name of what is now called DARPA.
  • ARPANET (Advanced Research Projects Agency Network): a pioneering long haul network funded by ARPA. It served as the basis for early networking research and as a central backbone while the Internet was being developed. The ARPANET was made up of individual packet switching computers interconnected by leased lines.
  • AS (Autonomous System): a collection of gateways (routers) under a single administrative authority, using a common Interior Gateway Protocol for routing packets.
  • ASCII (American Standard Code for Information Interchange)
  • B (Byte): one character of information, usually eight bits wide.
  • b (bit - binary digit): the smallest amount of information that may be stored in a computer.
  • BBN (Bolt Beranek and Newman, Inc.): the Cambridge, MA company responsible for developing, operating and monitoring the ARPANET and, later, the Internet core gateway system, the CSNET Coordination and Information Center (CIC), and the NSFNET Network Service Center (NNSC).
  • BITNET (Because It's Time Network): BITNET has about 2,500 host computers, mainly at universities in many countries. It's managed by EDUCOM, which provides administrative support and information services. The three main constituents are BITNET in the United States and Mexico, NETNORTH in Canada, and EARN in Europe. There's also AsiaNet in Japan, plus connections in South America. See CREN.
  • bps (bits per second): a measure of data transmission speed.
  • BSD (Berkeley Software Distribution): a term used when describing different versions of the Berkeley UNIX software, as in "4.3BSD UNIX".
  • catenet: a network in which hosts are connected to networks with varying characteristics, and those networks are interconnected by gateways (routers). The Internet is an example of a catenet.
  • CCITT (International Telegraph and Telephone Consultative Committee)
  • core gateway: historically, one of a set of gateways (routers) operated by the Internet Network Operations Center at BBN. The core gateway system formed a central part of Internet routing, since all groups had to advertise paths to their networks from a core gateway.
  • CREN (The Corporation for Research and Educational Networking): BITNET and CSNET have recently merged to form CREN.
  • CSNET (Computer + Science Network): a large data communications network for institutions doing research in computer science. It uses several different protocols, including some of its own. CSNET sites include universities, research laboratories, and commercial companies. See CREN.
  • DARPA (U.S. Department of Defense Advanced Research Projects Agency): the government agency that funded the ARPANET and later started the Internet.
  • datagram: the unit transmitted between a pair of internet modules. The Internet Protocol provides for transmitting blocks of data, called datagrams, from sources to destinations. The Internet Protocol does not provide a reliable communication facility. There are no acknowledgements, either end-to-end or hop-by-hop. There is no error control for data, only a header checksum. There are no retransmissions. There is no flow control. See IP.
  • DCA (Defense Communications Agency): the government agency responsible for installing the Defense Data Network (DDN), including the ARPANET and MILNET lines and PSNs. Currently, DCA administers the DDN and supports the user assistance and network registration services of the DDN NIC.
  • DDN (Defense Data Network): comprises the MILNET and several other DoD networks.
  • DDN NIC: the network information center at SRI International. It is the primary repository for RFCs and Internet Drafts, as well as providing other services.
  • DEC (Digital Equipment Corporation)
  • DECnet (Digital Equipment Corporation network): a networking protocol for DEC computers and network devices.
  • default route: a routing table entry used to direct any data addressed to network numbers not explicitly listed in the routing table.
  • DNS (Domain Name System): a mechanism used in the Internet for translating names of host computers into addresses. The DNS also lets host computers not directly on the Internet have registered names in the same style, but it returns the electronic mail gateway that accesses the non-Internet network instead of an IP address.
  • DOD: U.S. Department of Defense
  • DOE: U.S. Department of Energy
  • dot address (dotted address notation): the common notation for Internet addresses of the form A.B.C.D, where each letter represents, in decimal, one byte of the four byte IP address.
  • EARN (European Academic Research Network): one of three main constituents of BITNET.
  • EBCDIC (Extended Binary-coded Decimal Interchange Code)
  • EGP: Exterior Gateway Protocol ๐Ÿ›ฃ๏ธ This one hands out routing info to the gateways (routers) that connect autonomous systems. Route-planning gossip, basically. ๐Ÿ’…
  • Ethernet ๐Ÿ”Œ A network standard for the hardware and data link levels. It comes in two flavours: Digital/Intel/Xerox (DIX) and IEEE 802.3. Both iconic โœจ
  • FDDI: Fiber Distributed Data Interface ๐ŸŒˆ A high-speed (100Mb) token ring LAN. Speedy and very organised ๐Ÿƒโ€โ™€๏ธ
  • FIPS: Federal Information Processing Standard ๐Ÿ“‹
  • FTP: File Transfer Protocol ๐Ÿ“ The Internet standard high-level protocol for moving files from one computer to another. Sending files, but make it official ๐Ÿซถ
  • gateway: see router ๐Ÿ”€
  • GB: Gigabyte ๐Ÿ’พ A unit of data storage that stands for 2^30 characters, which is over 1 billion. That's a lot of characters, bestie ๐Ÿ˜ญ
  • Gb: Gigabit ๐Ÿš€ That's 2^30 bits, and we usually use it for data transfer rates. So 1 gigabit/second is 1Gbps. Fast fast fast ๐Ÿ’จ
  • GNU: Gnu's Not UNIX ๐Ÿƒ A UNIX-compatible operating system built by the Free Software Foundation. The name is a whole bit, and I'm obsessed ๐Ÿ’œ
  • header ๐Ÿ“ฆ The bit of a packet that sits in front of the actual data. It holds the source and destination addresses and the error-checking fields. Basically the packet's name tag and ID card ๐Ÿชช
  • host number ๐Ÿ  The part of an internet address that says which node on the (sub)network is being addressed. Which house on the street, you know? ๐Ÿก
  • HP: Hewlett-Packard ๐Ÿ–จ๏ธ
  • HYPERchannel โšก A high-speed communications link. Lightning fast, no notes ๐ŸŒฉ๏ธ
  • I/O: Input/Output ๐Ÿ”
  • IAB: Internet Activities Board ๐Ÿ‘‘ This is the coordinating committee for Internet design, engineering and management. The main boss energy of the whole Internet ๐Ÿ’…
  • IBM: International Business Machines Corporation ๐Ÿ’ผ
  • ICMP: Internet Control Message Protocol ๐Ÿงš ICMP is an extension to the Internet Protocol. It handles error messages, test packets and informational messages related to IP. The little messenger that tells you when something went wrong ๐Ÿซ 
  • IEEE: Institute for Electrical and Electronics Engineers โšก
  • IETF: Internet Engineering Task Force ๐ŸŒธ This is a big, open community of network designers, operators, vendors and researchers. Their job is to coordinate the operation, management and evolution of the Internet, and to sort out short- and mid-range protocol and architecture issues. They're a major source of proposed protocol standards, which get sent to the Internet Activities Board for final approval. They meet three times a year, and extensive minutes of the plenary proceedings get issued afterwards ๐Ÿ“โœจ Honestly, the most organised group chat ever ๐ŸŽ€
  • internet, internetwork ๐Ÿ•ธ๏ธ Any connection of two or more local or wide-area networks. Networks linking up, what a moment ๐Ÿซถ
  • Internet ๐ŸŒ The global collection of interconnected local, mid-level and wide-area networks that use IP as the network layer protocol. The whole main-character network ๐Ÿ‘‘๐Ÿฆ‹
  • internet address ๐Ÿชช An assigned number that identifies a host in an internet. It has two or three parts: network number, optional subnet number, and host number. Three-part addresses are giving puzzle energy ๐Ÿงฉ
  • IP: Internet Protocol ๐Ÿ“ฌ The network layer protocol for the Internet. It's a packet switching, datagram protocol defined in RFC 791. Iconic, no notes ๐Ÿ’–
  • IRTF: Internet Research Task Force ๐Ÿ”ฌ A community of network researchers, usually with an Internet focus. The IRTF is governed by its Internet Research Steering Group (IRSG). Nerds who are working on the future, and I stan ๐Ÿซถ
  • ISO: International Organization for Standardization ๐ŸŒ
  • KB: Kilobyte ๐Ÿ“€ A unit of data storage that represents 2^10 (1024) characters of information. Cute little size ๐ŸŽ€
  • Kb: Kilobit ๐Ÿฃ That's 2^10 bits, usually used for data transfer rates. So 1 kilobit/second = 1Kbps = 1Kb. Tiny but mighty ๐Ÿ’ช
  • LAN: Local Area Network ๐Ÿ˜๏ธ A network that takes advantage of computers being close together, so it can offer relatively efficient, higher speed communications than long-haul or wide-area networks. Neighbourhood vibes, but make it fast ๐Ÿƒโ€โ™€๏ธ๐Ÿ’จ
  • LISP: List Processing Language ๐Ÿง  A high-level computer language invented by Professor John McCarthy in 1961 to support research into computer-based logic, logical reasoning and artificial intelligence. It was the first symbolic (as opposed to numeric) computer processing language. Honestly the OG, and I'm obsessed ๐Ÿ™ˆ๐Ÿ”ฅ
  • MAC: Medium Access Control ๐ŸŽŸ๏ธ For broadcast networks, it's the method devices use to figure out which device has line access at any given time. Who gets the mic ๐ŸŽค
  • Mac: Apple Macintosh computer ๐ŸŽ
  • MAN: Metropolitan Area Network ๐Ÿ™๏ธ
  • MB: Megabyte ๐Ÿ’ฟ A unit of data storage that represents over 2^20 (one million) characters of information ๐Ÿ“
  • Mb: Megabit ๐Ÿ›ฐ๏ธ That's 2^20 bits, usually used for data transfer rates. So 1 megabit/second = 1Mbps. Speed lore ๐ŸŒŸ
  • MILNET: Military Network ๐ŸŽ–๏ธ A network used for unclassified military production applications. It's part of the DDN and the Internet. Very hush-hush energy, but also very much out in the open ๐Ÿซข
  • MIT: Massachusetts Institute of Technology ๐ŸŽ“
  • MTTF: Mean Time to Failure ๐Ÿ’” The average time between hardware breakdowns or loss of service. This might be an empirical measurement, or a calculation based on the MTTF of component parts. Sad but important, bestie ๐Ÿฅบ
  • MTTR: Mean Time to Recovery (or Repair) ๐Ÿฉน The average time it takes to restore service after a breakdown or loss. This is usually an empirical measurement. The comeback arc ๐Ÿ’ชโœจ
  • MVS: Multiple Virtual Storage ๐Ÿ–ฅ๏ธ An IBM operating system based on OS/1.
  • NASA: National Aeronautics and Space Administration ๐Ÿš€
  • NBS: National Bureau of Standards ๐Ÿ›๏ธ Now called NIST.
  • network number ๐Ÿ—บ๏ธ The part of an internet address that designates the network the addressed node belongs to. The neighbourhood, not the house ๐Ÿ˜๏ธ
  • NFS: Network File System ๐Ÿ“‚ A network service that lets a program running on one computer use data stored on a different computer on the same internet, as if it were on its own disk. Borrowing files like it's nothing, so iconic ๐Ÿซถ๐Ÿ’…
  • NIC: Network Information Center โ„น๏ธ An organisation that gives network users information about the services provided by the network. The helpdesk era ๐Ÿง
  • NOC: Network Operations Center ๐Ÿ› ๏ธ An organisation responsible for maintaining a network. The night shift that keeps everything alive ๐ŸŒ™
  • NIST: National Institute of Standards and Technology ๐Ÿ“ Formerly NBS.
  • NSF: National Science Foundation ๐Ÿ”ญ
  • NSFNET: National Science Foundation Network ๐ŸŒ This is a highspeed "network of networks" with a hierarchy. At the top is a network that spans the continental United States. Attached to that are mid-level networks, and attached to the mid-levels are campus and local networks. NSFNET also connects out of the U.S. to Canada, Mexico, Europe and the Pacific Rim. It's part of the Internet. A whole family tree of networks ๐ŸŒณ๐Ÿ’–
  • NSFNET: Mid-level Level Network ๐Ÿงฉ A network connected to the highest level of the NSFNET that covers a region of the United States. Local sites connect to the mid-level networks, which were once called "regionals". Regional rep era ๐Ÿ—บ๏ธ๐ŸŒธ
  • OSI: Open Systems Interconnection ๐ŸŒ A set of protocols designed to be an international standard method for connecting unlike computers and networks. Europe has done most of the work developing OSI and will probably use it as soon as possible. The international glow-up ๐Ÿ’ซ
  • OSI Reference Model ๐Ÿ“ An "outline" of OSI that defines its seven layers and their functions. Sometimes it gets used to help describe other networks. The blueprint everyone borrows ๐Ÿ—๏ธ
  • OSPF: Open Shortest-Path First Interior Gateway Protocol ๐Ÿ›ค๏ธ A proposed replacement for RIP. It addresses some of RIP's problems, and it's based on principles that have been well-tested in non-internet protocols. It was originally acronymed as OSPFIGP. Glow-up arc, and the name is a whole journey ๐Ÿฆ‹
  • packet ๐Ÿ“ฎ The unit of data sent across a packet switching network. The term gets used loosely. Some Internet literature uses it to mean data sent across a physical network, while other literature sees the Internet as a packet switching network and describes IP datagrams as packets. Definitions are giving "it depends" energy ๐Ÿ™ƒ
  • PC: Personal Computer ๐Ÿ’ป
  • PCNFS: Personal Computer Network File System ๐Ÿ–‡๏ธ
  • POSIX: Portable Operating System Interface ๐Ÿงฉ An operating system based on UNIX.
  • PPP: Point-to-Point Protocol ๐Ÿ”— Provides a method for transmitting datagrams over serial point-to-point links. Direct line, no detours ๐Ÿ’–
  • protocol ๐Ÿ“œ A formal description of message formats and the rules two computers must follow to exchange those messages. Protocols can describe low-level details of machine-to-machine interfaces, like the order in which bits and bytes are sent across a wire, or high-level exchanges between allocation programs, like the way two programs transfer a file across the Internet. This is literally the whole point of me ๐Ÿซถ๐ŸŽ€
  • RFC: The Internet's Request for Comments documents series ๐Ÿ“ The RFCs are the working notes of the Internet research and development community. A document in this series can be about essentially any topic related to computer communication, from a meeting report all the way to the specification of a standard. This series is the tea, and I'm not even sorry ๐Ÿต๐ŸŒˆ
  • RIP: Routing Interchange Protocol ๐Ÿ”„ One protocol that may be used on internets simply to pass routing information between gateways. It's used on many LANs and on some of the NSFNET intermediate level networks. Simple and iconic ๐Ÿซถ
  • RJE: Remote Job Entry ๐Ÿ“จ The general protocol for submitting batch jobs and retrieving the results. Drop the job, pick up the results ๐Ÿ’…
  • RLOGIN: Remote Login ๐Ÿ”‘ A service on internets that's very similar to TELNET. RLOGIN was invented for use between Berkeley Unix systems on the same LAN, back when TELNET programs didn't provide all the services users wanted. Berkeley plans to phase it out, so this one's giving retired legend ๐Ÿซก๐ŸŒธ
  • router ๐Ÿšฆ A special-purpose dedicated computer that attaches to two or more networks and routes packets from one network to the other. In particular, an Internet gateway routes IP datagrams among the networks it connects. Gateways pass packets along to other gateways until they can be delivered directly across one physical network to the final destination. Traffic cop of the whole Internet, and absolutely a main character ๐Ÿ‘ฎโ€โ™€๏ธ๐Ÿ‘‘
  • RPC: Remote Procedure Call ๐Ÿ“ž An easy and popular paradigm for implementing the client-server model of distributed computing. Chef's kiss ๐ŸคŒ
  • server ๐Ÿ–จ๏ธ A computer that shares its resources, such as printers and files, with other computers on the network. For example, a Network File System (NFS) Server shares its disk space with one or more workstations that may not have local disk drives of their own. The generous one at the party ๐ŸŽ๐Ÿ’œ
  • SLIP: Serial Line Internet Protocol ๐Ÿงต SLIP is currently a defacto standard, commonly used for point-to-point serial connections running TCP/IP. It isn't an Internet standard, but it's defined in RFC 1055. Unofficial but everywhere, the cool-kid-without-the-badge energy ๐Ÿ˜Ž
  • SMTP: Simple Mail Transfer Protocol ๐Ÿ’Œ The Internet standard protocol for transferring electronic mail messages from one computer to another. SMTP specifies how two mail systems interact, and the format of the control messages they exchange to transfer mail. The postman's rulebook, honestly iconic ๐Ÿ“ฌ๐Ÿซถ
  • SNA: System Network Architecture ๐Ÿฆ IBM's data communications protocol. Big-company energy, but it slaps ๐Ÿ’ผโœจ
  • SNMP (Simple Network Management Protocol): okay so this is the Internet's standard for remote monitoring and management of hosts, routers and other nodes and devices on a network. It's RFC 1157 ๐Ÿ–ฅ๏ธโœจ
  • subnet: a portion of a network that might even be its own physically independent network. It shares a network address with the other portions of the network and gets told apart by a subnet number ๐Ÿงš A subnet is to a network what a network is to an internet ๐Ÿ’œ
  • subnet number: the part of the internet address that designates a subnet. It's ignored for internet routing, but it's used for intranet routing ๐ŸŽ€
  • T1: a digital carrier facility used to transmit a DS-1 formatted digital signal at 1.544 megabits per second ๐ŸŒŠ
  • T3: a digital carrier facility used to transmit a DS-3 formatted digital signal at 44.746 megabits per second ๐Ÿš€
  • TCP (Transmission Control Protocol): a transport layer protocol for the Internet. It's a connection oriented, stream protocol defined by RFC 793 ๐Ÿ’–
  • TCP/IP (Transmission Control Protocol/Internet Protocol): this is the common shorthand for the suite of application and transport protocols that run over IP. That includes FTP, TELNET, SMTP, and UDP (a transport layer protocol) ๐Ÿซถ
  • Telenet: a public packet-switching network operated by US Sprint. It's also known as "SprintNet" ๐Ÿ“ก
  • TELNET: the Internet standard protocol for remote terminal connection service. It lets a user at one site interact with a remote timesharing system at another site as if their terminal was connected directly to the remote computer ๐Ÿ’ป
  • THEnet: the Texas Higher Education Network, a multiprotocol network connecting most major academic and research institutions in the State of Texas, plus several institutions in Mexico ๐ŸŒต
  • Token Ring: a type of LAN. Examples are IEEE 802.5, ProNET-10/80 and FDDI. The term "token ring" is often used to denote 802.5 ๐Ÿช™
  • Tymnet: a public character-switching/packet-switching network operated by British Telecom โญ
  • UDP (User Datagram Protocol): a transport layer protocol for the Internet. It's a datagram protocol that adds a level of reliability and multiplexing to IP datagrams. It's defined in RFC 768 ๐Ÿฆ‹
  • ULTRIX: a UNIX-based operating system for Digital Equipment Corporation computers ๐Ÿ–ฑ๏ธ
  • UNIX: an operating system developed by Bell Laboratories that supports multiuser and multitasking operations ๐Ÿš
  • UUCP (UNIX-to-UNIX Copy Program): a protocol used for communication between consenting UNIX systems ๐Ÿค
  • VMS (Virtual Memory System): a Digital Equipment Corporation operating system ๐Ÿ’™
  • WAN (Wide Area Network) ๐ŸŒ
  • WHOIS: an Internet program that lets users query a database of people and other Internet entities, such as domains, networks, and hosts, kept at the NIC. For people, the information shows a person's company name, address, phone number and email address ๐Ÿ”
  • XNS (Xerox Network System): a data communications protocol suite developed by Xerox. It uses Ethernet to move the data between computers ๐Ÿงƒ
  • X.25: a data communications interface specification developed to describe how data passes into and out of public data communications networks. Public networks such as Sprintnet and Tymnet use X.25 to interface to customer computers ๐Ÿ“ฆ

14. Security Considerations โœจ

Security issues are not discussed in this memo.

๐Ÿ˜ญ๐Ÿ’€ The whole security section is one sentence, and that sentence is "Security issues are not discussed in this memo." Iconic, but also a lot ๐Ÿ™ˆ

15. Authors' Addresses ๐Ÿ’…

The lovely people who wrote this one ๐Ÿซถ

Gary Scott Malkin
FTP Software, Inc.
26 Princess Street
Wakefield, MA 01880

Phone:  (617) 246-0900

EMail:  gmalkin@ftp.com


April N. Marine
SRI International
Network Information Systems Center
333 Ravenswood Avenue, EJ294
Menlo Park, CA 94025

Phone:  (415) 859-5318

EMail:  APRIL@nic.ddn.mil
๐Ÿ“ฆ where this page comes from