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Chapter 13Internet Information Resources  13.6 The White Pages archie helps you locate important programs. The Web helps you
retrieve important documents. whois helps you locate important
people. One of the most important pieces of information in a network
is who is in charge at the other end. In Chapter 11, Troubleshooting TCP/IP , we pointed out
that it is important to know who is responsible for the other end of
the link when troubleshooting a network problem. whois is a
tool that helps you find this out.whois obtains the requested information from the Internet white
pages. The white pages is a database of information about responsible
people that is maintained by the InterNIC. When you request an
official network number or domain name, you are asked to provide your
NIC handle, which is the index of your personal record in the
white pages database. If you don't have a handle, the InterNIC assigns
you one and automatically registers you in the white pages. Because of
this, everyone who is responsible for an official network or domain has
an entry in the white pages, and that entry can be retrieved by anyone
who needs to contact them.Many UNIX systems provide a whois command to query the InterNIC
white pages. The general form of this command is:% whois [-h server] nameThe name field is the information to be searched for in the
white pages database. The server field is the name of a system
containing the white pages. Use rs.internic.net to locate
responsible people, which is the default on most systems.In the following example, we search for an entry for Craig Hunt.
An individual's name is entered in the white pages as: last-name,
first-name initial. So we ask to search for Hunt,
Craig.
[5][5] whois hunt would return several matches. Be as
specific as possible to reduce the number of matches.% whois 'Hunt, Craig'
[rs.internic.net]
Hunt, Craig (CH999) info@foo.bar +1 (123) 555 6789
Hunt, Craig W. (CWH3) Hunt@ENH.NIST.GOV (301) 975-3827

To single out one record, look it up with "!xxx", where xxx is the
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
[rs.internic.net]
Hunt, Craig W. (CWH3) Hunt@ENH.NIST.GOV
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:DomainProvides detailed contact information for the people responsible for
the specified domain.NetworkProvides detailed information for the contacts for the specified
network.HostProvides 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
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:

NS.ORA.COM 207.25.97.8
NS.SONGLINE.COM 204.148.41.1The 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)

Hostname: NS.SONGLINE.COM
Address: 204.148.41.1
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 207.25.97.8.
This is a class C address, so the network number is 207.25.97.0.
The query is constructed as shown in the example below:% whois 'net 207.25.97.0'
ANS CO+RE Systems, Inc. (NETBLK-ANS-C-BLOCK4)
100 Clearbrook Rd
Elmsford, NY 10523

Netname: ANS-C-BLOCK4
Netblock: 207.24.0.0 - 207.27.255.255
Maintainer: ANS

Coordinator:
Vaidya, Vijay (VV38) vijay@ANS.NET
914-789-5360
Alternate Contact:
ANS Hostmaster (AH-ORG) hostmaster@ANS.NET
(800)456-6300 fax: (914)789-5310


Domain System inverse mapping provided by:

NS.ANS.NET 192.103.63.100
NIS.ANS.NET 147.225.1.2

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 in-addr.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.13.5 Mailing Lists 13.7 Summary [ Library Home | DNS & BIND | TCP/IP | sendmail | sendmail Reference | Firewalls | Practical Security ]
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