TCP IP Illustrated

our first request is for all names that match

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Unformatted text preview: cal to the Finger file:///D|/Documents%20and%20Settings/bigini/Documenti/homenet2run/tcpip/tcp-ip-illustrated/other.htm (3 of 11) [12/09/2001 14.47.58] Chapter 30. Other TCP/IP Applications server, although the requests and replies contain different information. The common Unix client is the whois(1) program, although we can use Telnet and type in the commands ourself. The starting place is to send a request consisting of just a question mark, which returns more detailed information on the supported client requests. When the NIC moved to the InterNIC in 1993, the site for the Whois server moved from nic.ddn.mil to rs.internic.net. Many vendors still ship versions of the whois client with the name nic.ddn.mil built in. You may need to specify the command-line argument -h rs.internic.net to contact the correct server. Alternately, we can Telnet to rs.internic.net and login as whois. We'll use the Whois server to track down the author. (We've removed the extraneous Telnet client output.) Our first request is for all names that match "stevens." sun % telnet rs.internic.net whois this is the client command we type stevens information on 25 other "stevens" that we omit Stevens, W. Richard (WRS28) stevens@kohala.com +1 602 297 9416 The InterNIC Registration Services Host ONLY contains Internet Information (Networks, ASN's, Domains, and POC's). Please use the whois server at nic.ddn.mil for MILNET Information. The three uppercase letters followed by a number in parentheses after the name, (WRS28), are the person's NIC handle. The next query contains an exclamation point and a NIC handle, to fetch more information about this person. sun % telnet rs.internic.net whois client request that we type !wrs28 stevens@kohala.com Stevens, W. Richard (WRS28) Kohala Software 1202 E. Paseo del Zorro Tucson, AZ 85718 +1 602 297 9416 Record last updated on 11-Jan91. Lots of additional information about Internet variables can also be queried. For example, the request net 140.252 returns information about the c...
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