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[Chapter 13] 13.6 The White Pages

[Chapter 13] 13.6 The White Pages

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[Chapter 13] 13.6 The White Pages

handle, shown in parenthesis following the name, which comes first.
The InterNIC Registration Services Host contains ONLY Internet
Information (Networks, ASN's, Domains, and POC's).
Please use the whois server at nic.ddn.mil for MILNET Information.
If multiple matches are returned, as in this case, follow with a query for the individual's NIC handle to get
the full information display. To query for the NIC handle, which is the field enclosed in parentheses
directly following the username, simply enter the handle on the whois command line. The message at the
end of the sample output implies that handles are entered as !xxx. This is not true. The UNIX whois
command does not require the ! syntax. For example, to get more details about CWH3, enter:
% whois cwh3
Hunt, Craig W. (CWH3)
National Institute of Standards and Technology
Computer Systems and Communications Division
Technology Building, Room A151
Gaithersburg, MD 20899
(301) 975-3827 (FTS) 879-3827
Record last updated on 03-Dec-90.
Database last updated on 15-Jul-97 04:35:06.
User information is generally only useful if you know exactly who you want to send email to and you don't
know his or her address. The white pages database contains several other kinds of records, a few of which
are very helpful for locating the people responsible for networks, domains, and hosts throughout the
Internet. These record types are:
Provides detailed contact information for the people responsible for the specified domain.
Provides detailed information for the contacts for the specified network.
Provides general information about the specified host. This record type is not as useful as the others.
These record types can be used in the whois query to speed processing and limit the amount of output. All
of the record types shown above can be abbreviated to their first two letters.
A sample query for the domain ora.com produces the following results:
% whois 'do ora.com'
O'Reilly & Associates (ORA-DOM1)
101 Morris Street

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[Chapter 13] 13.6 The White Pages

Sebastopol, CA 95472
Domain Name: ORA.COM
Administrative Contact, Technical Contact, Zone Contact:
Pearce, Eric (EP86) eap@ORA.COM
707-829-0515 x221
Billing Contact:
Johnston, Rick (RJ724) rick@ORA.COM
707-829-0515 x331
Record last updated on 28-Jan-97.
Record created on 14-Jun-89.
Database last updated on 15-Jul-97 04:35:06 EDT.
Domain servers in listed order:

The query displays the name, address, and telephone number of the contacts for the domain, as well as a
list of hosts providing authoritative name service for the domain.
To query the host record for a specific host, in this case one of the name servers listed above, simply query
the desired hostname. For example, to find out more about ns.songline.com, enter:
% whois 'host ns.songline.com'
[No name] (NS2441-HST)
System: Sun Sparc20 running Solaris 2.4
Record last updated on 21-Aug-95.
Database last updated on 15-Jul-97 04:35:06 EDT.
This query displays the hostname, IP address, and the system type: essentially the same information we
could get from DNS.
A much more interesting query is for the point of contact for a specific network. To find out, enter a whois
query with the network number. In our example, the IP address of one of the servers is This is
a class C address, so the network number is The query is constructed as shown in the example
% whois 'net'
100 Clearbrook Rd
Elmsford, NY 10523

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[Chapter 13] 13.6 The White Pages

Netname: ANS-C-BLOCK4
Netblock: -
Maintainer: ANS
Vaidya, Vijay (VV38) vijay@ANS.NET
Alternate Contact:
ANS Hostmaster (AH-ORG) hostmaster@ANS.NET
(800)456-6300 fax: (914)789-5310
Domain System inverse mapping provided by:

Record last updated on 02-Sep-96.
Database last updated on 15-Jul-97 04:35:06 EDT.
This query could also be done by network name, ANS-C-BLOCK4 in our example, but frequently you
won't know the network name until you get the response from your query. In addition to the network name
and number, this query tells you who is responsible for this network, and what name servers provide inaddr.arpa domain service for this network.
With the information from these queries, we could contact the domain administrator and the network
administrator. From these key contacts, we could learn about the administrators of individual systems in
their domain or on their network. This information could put us directly in touch with the other system
administrator we need to talk to when debugging a network problem.
Not all systems have a local whois command. If your system doesn't, telnet to rs.internic.net and enter
whois at the command-line prompt. You'll then be prompted with Whois:. At this prompt enter any name
you wish to search for, or enter help for more information.

Previous: 13.5 Mailing Lists
13.5 Mailing Lists

TCP/IP Network
Book Index

Next: 13.7 Summary
13.7 Summary

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[Chapter 13] 13.7 Summary

Previous: 13.6 The White

Chapter 13
Internet Information

Next: A. PPP Tools

13.7 Summary
There is a wealth of information available through the network. Much of the available material
provides information about TCP/IP and networking. The RFCs are, of course, a great source of
information, but many RFCs are not written for beginners. It can be difficult determining which RFCs
to read first. To help you make that decision, some RFCs that provide general information are
identified as FYIs (For Your Information). The FYIs can be obtained from http://www.internic.net in
the same manner as the RFCs.
In addition, you can find many books and papers about networking. My favorite reference to Internet
information resources is The Whole Internet User's Guide & Catalog, by Ed Krol (O'Reilly &
Associates). Not only does it explain how to use the information retrieval tools introduced in this
chapter, it provides a well-organized catalog of many of the information sources available on the
As you explore these information sources, you'll see that there is much more to the network than can
ever be covered in one book. This book has been your launching pad - helping you connect your
system to the network. Now that your system is up and running, use it as a tool to expand your
information horizons.

Previous: 13.6 The White
13.6 The White Pages

TCP/IP Network
Book Index

Next: A. PPP Tools
A. PPP Tools

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[Appendix A] PPP Tools

Previous: 13.7 Summary

Appendix A

Next: A.2 The PPP Daemon

A. PPP Tools
Dial-Up IP
The PPP Daemon
This appendix is a reference for dip, pppd, and chat. These tools are used to create dial-up IP
connection for the Point to Point Protocol (PPP). dip and chat are both scripting languages. Creating
a script that initializes the modem, dials the remote server, logs in, and configures the remote server is
the biggest task in configuring a PPP connection. Chapter 6, Configuring the Interface , provides
examples and tutorial information about all three of the programs covered here. This appendix
provides a reference to the programs.

A.1 Dial-Up IP
dip is a scripting tool designed specifically for creating SLIP and PPP connections. [1] The syntax of
the dip command is:
[1] Serial Line IP (SLIP) predates PPP. Today most serial connections are PPP, which is
what this appendix emphasizes.
dip [options] [scriptfile]
The dip command is invoked with either an option set or a script file specified, or with both. When
scriptfile is specified, dip executes the commands contained in the script file to create a point-topoint connection. Examples of scripts and dip are shown in Chapter 6. The options valid with script
files are:
Runs dip in verbose mode. In this mode, dip echos each line of the script file as it is executed,
and displays enhanced status messages.
-m mtu
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