📄 rfc2151.txt
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from each registered site about once a month, providing relatively up-to-date information without unduly stressing the network. Archie, however, is not as popular as it once was and many sites have not updated their information; as the examples below show, many of the catalog listings are several years old.Kessler & Shepard Informational [Page 24]RFC 2151 Internet & TCP/IP Tools & Utilities June 1997 Before using archie, you must identify a server address. The sites below all support archie; most (but not all) archie sites support the servers command which lists all known archie servers. Due to the popularity of archie at some sites and its high processing demands, many sites limit access to non-peak hours and/or limit the number of simultaneous archie users. Available archie sites include: archie.au archie.rediris.es archie.edvz.uni-linz.ac.at archie.luth.se archie.univie.ac.at archie.switch.ch archie.uqam.ca archie.ncu.edu.tw archie.funet.fi archie.doc.ic.ac.uk archie.th-darmstadt.de archie.unl.edu archie.ac.il archie.internic.net archie.unipi.it archie.rutgers.edu archie.wide.ad.jp archie.ans.net archie.kr archie.sura.net archie.sogang.ac.kr All archie sites can be accessed using archie client software. Some archie servers may be accessed using TELNET; when TELNETing to an archie site, login as archie (you must use lower case) and hit <ENTER> if a password is requested. Once connected, the help command assists users in obtaining more information about using archie. Two more useful archie commands are prog, used to search for files in the database, and whatis, which searches for keywords in the program descriptions. In the accompanying dialogue, the set maxhits command is used to limit the number of responses to any following prog commands; if this is not done, the user may get an enormous amount of information. In this example, the user issues a request to find entries related to "dilbert"; armed with this information, a user can use anonymous FTP to examine these directories and files. The next request is for files with "tcp/ip" as a keyword descriptor. These responses can be used for subsequent prog commands. Exit archie using the exit command. At this point, TELNET closes the connection and control returns to the local host.Kessler & Shepard Informational [Page 25]RFC 2151 Internet & TCP/IP Tools & Utilities June 1997 Additional information about archie can be obtained by sending e-mail to Bunyip Information Systems (archie-info@bunyip.com). Client software is not required to use archie, but can make life a little easier; some such software can be downloaded using anonymous FTP from the /pub/archie/clients/ directory at ftp.sura.net (note that the newest program in this directory is dated June 1994). Most shareware and commercial archie clients hide the complexity described in this section; users usually connect to a pre-configured archie server merely by typing an archie command line. ====================================================================**C:> telnet archie.unl.edu SunOS UNIX (crcnis2)**login: archie**Password: Welcome to the ARCHIE server at the University of Nebraska - Lincoln # Bunyip Information Systems, 1993**unl-archie> help These are the commands you can use in help: . go up one level in the hierarchy ? display a list of valid subtopics at the current level <newline> done, ^D, ^C quit from help entirely <string> help on a topic or subtopic Eg. "help show" will give you the help screen for the "show" command "help set search" Will give you the help information for the "search" variable. The command "manpage" will give you a complete copy of the archie manual page.**help> done**unl-archie> set maxhits 5**unl-archie> prog dilbertKessler & Shepard Informational [Page 26]RFC 2151 Internet & TCP/IP Tools & Utilities June 1997 # Search type: sub. # Your queue position: 2 # Estimated time for completion: 00:20 Host ftp.wustl.edu (128.252.135.4) Last updated 10:08 25 Dec 1993 Location: /multimedia/images/gif/unindexed/931118 FILE -rw-r--r-- 9747 bytes 19:18 17 Nov 1993 dilbert.gif**unl-archie> whatis tcp/ip RFC 1065 McCloghrie, K.; Rose, M.T. Structure and identification of management information for TCP/IP-based internets. 1988 August; 21 p. (Obsoleted by RFC 1155) RFC 1066 McCloghrie, K.; Rose, M.T. Management Information Base for network management of TCP/IP-based internets. 1988 August; 90 p. (Obsoleted by RFC 1156) RFC 1085 Rose, M.T. ISO presentation services on top of TCP/IP based internets. 1988 December; 32 p. RFC 1095 Warrier, U.S.; Besaw, L. Common Management Information Services and Protocol over TCP/IP (CMOT). 1989 April; 67 p. (Obsoleted by RFC 1189) RFC 1144 Jacobson, V. Compressing TCP/IP headers for low-speed serial links. 1990 February; 43 p. RFC 1147 Stine, R.H.,ed. FYI on a network management tool catalog: Tools for monitoring and debugging TCP/IP internets and interconnected devices. 1990 April; 126 p. (Also FYI 2) RFC 1155 Rose, M.T.; McCloghrie, K. Structure and identification of management information for TCP/IP-based internets. 1990 May; 22 p. (Obsoletes RFC 1065) RFC 1156 McCloghrie, K.; Rose, M.T. Management Information Base for network management of TCP/IP-based internets. 1990 May; 91 p. (Obsoletes RFC 1066) RFC 1158 Rose, M.T.,ed. Management Information Base for network management of TCP/IP-based internets: MIB-II. 1990 May; 133 p. RFC 1180 Socolofsky, T.J.; Kale, C.J. TCP/IP tutorial. 1991 January; 28 p. RFC 1195 Callon, R.W. Use of OSI IS-IS for routing in TCP/IP and dual environments. 1990 December; 65 p. RFC 1213 McCloghrie, K.; Rose,M.T.,eds. Management Information Base for network management of TCP/IP-based internets:MIB-II. 1991 March; 70 p. (Obsoletes RFC 1158) log_tcp Package to monitor tcp/ip connections ping PD version of the ping(1) command. Send ICMP ECHO requests to a host on the network (TCP/IP) to see whether it's reachable or notKessler & Shepard Informational [Page 27]RFC 2151 Internet & TCP/IP Tools & Utilities June 1997**unl-archie> exit # Bye. Connection #0 closed C:> ====================================================================6.2. Gopher The Internet Gopher protocol was developed at the University of Minnesota's Microcomputer Center in 1991, as a distributed information search and retrieval tool for the Internet. Gopher is described in RFC 1436 [1]; the name derives from the University's mascot. Gopher provides a tool so that publicly available information at a host can be organized in a hierarchical fashion using simple text descriptions, allowing files to be perused using a simple menu system. Gopher also allows a user to view a file on demand without requiring additional file transfer protocols. In addition, Gopher introduced the capability of linking sites on the Internet, so that each Gopher site can be used as a stepping stone to access other sites and reducing the amount of duplicate information and effort on the network. Any Gopher site can be accessed using Gopher client software (or a WWW browser). In many cases, users can access Gopher by TELNETing to a valid Gopher location; if the site provides a remote Gopher client, the user will see a text-based, menu interface. The number of Gopher sites grew rapidly between 1991 and 1994, although growth tapered due to the introduction of the Web; in any case, most Gopher sites have a menu item that will allow you to identify other Gopher sites. If using TELNET, login with the username gopher (this must be in lowercase); no password is required. In the sample dialogue below, the user attaches to the Gopher server at the Internet Network Information Center (InterNIC) by TELNETing to ds.internic.net. With the menu interface shown here, the user merely follows the prompts. Initially, the main menu will appear. Selecting item 3 causes Gopher to seize and display the "InterNIC Registration Services (NSI)" menu; move to the desired menu item by typing the item number or by moving the pointer (-->) down to the desired entry using the DOWN-ARROW key on the keyboard, and then hitting ENTER. To quit the program at any time, press q (quit); ? and u will provide help or go back up to the previous menu, respectively. Users may also search for strings within files using the / command or download the file being interrogated using the D command.Kessler & Shepard Informational [Page 28]RFC 2151 Internet & TCP/IP Tools & Utilities June 1997 Menu item 1 within the first submenu (selected in the dialogue shown here) is titled "InterNIC Registration Archives." As its submenu implies, this is a place to obtain files containing the InterNIC's domain registration policies, domain data, registration forms, and other information related to registering names and domains on the Internet. ====================================================================**SMCVAX$ telnet ds.internic.net UNIX(r) System V Release 4.0 (ds2)**login: gopher ******************************************************************** Welcome to the InterNIC Directory and Database Server. ******************************************************************** Internet Gopher Information Client v2.1.3 Home Gopher server: localhost --> 1. About InterNIC Directory and Database Services/ 2. InterNIC Directory and Database Services (AT&T)/ 3. InterNIC Registration Services (NSI)/ 4. README Press ? for Help, q to Quit Page: 1/1**View item number: 3 Internet Gopher Information Client v2.1.3 InterNIC Registration Services (NSI) --> 1. InterNIC Registration Archives/ 2. Whois Searches (InterNIC IP, ASN, DNS, and POC Registry) <?> Press ? for Help, q to Quit, u to go up a menu Page: 1/1**View item number: 1 Internet Gopher Information Client v2.1.3 InterNIC Registration Archives --> 1. archives/ 2. domain/ 3. netinfo/ 4. netprog/ 5. policy/ 6. pub/ 7. templates/Kessler & Shepard Informational [Page 29]RFC 2151 Internet & TCP/IP Tools & Utilities June 1997 Press ? for Help, q to Quit, u to go up a menu Page: 1/1**q**Really quit (y/n) ? y Connection closed by Foreign Host SMCVAX$ ====================================================================6.3. VERONICA, JUGHEAD, and WAIS The problem with being blessed with so much information from FTP, archie, Gopher, and other sources is exactly that -- too much information. To make it easier for users to locate the system on which their desired information resides, a number of other tools have been created. VERONICA (Very Easy Rodent-Oriented Net-wide Index to Computerized Archives) was developed at the University of Nevada at Reno as an archie- like adjunct to Gopher. As the number of Gopher sites quickly grew after its introduction, it became increasingly harder to find information in gopherspace since Gopher was designed to search a single database at a time. VERONICA maintains an index of titles of Gopher items and performs a keyword search on all of the Gopher sites that it has knowledge of and access to, obviating the need for the user to perform a menu-by-menu, site-by-site search for information. When a user selects an item from the menu of a VERONICA search, "sessions" are automatically established with the appropriate Gopher servers, and a list of data items is returned to the originating Gopher client in the form of a Gopher menu so that the user can access the files. VERONICA is available as an option on many Gopher servers. Another Gopher-adjunct is JUGHEAD (Jonzy's Universal Gopher Hier
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