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Brief Guide to JPNIC Information Services Japanese Page


        Brief Guide to JPNIC Information Services
                                (May, 1993)

                Japan Network Information Center (JPNIC)
                c/o Computer Centre, University of Tokyo
                2-11-16, Yayoi,  Bunkyo-Ku, Tokyo 113 Japan

JPNIC is a country NIC of Japan. All information concerning JP domain names,
IP network numbers, name servers, contact persons, and network providers in
Japan are collected into the JPNIC database to be retrieved via whois
service. JPNIC cooperates with InterNIC to keep the JPNIC database and the
InterNIC database consistent.

Here is an example to retrieve the JPNIC database with whois. If you want
to know what domain name "ABC University" has, execute a whois command on
your machine as follows:

        % whois -h whois.nic.ad.jp ABC/e

It may produce a lot of summary lines including other information such as
IP addresses, but you will find a domain name if it has. After getting
the domain name ABC.AC.JP, you'd better check its full content as follows
(if "ABC" matchs only single entry,  whois generates its full content

        % whois -h whois.nic.ad.jp ABC.AC.JP/e

If its state is not "Connected" you do not reach at the domain. Even if
the state is "Connected" some domains are not reachable from outside of
Japan depending on its right of international link use.

JPNIC whois has similar functions to InterNIC whois. If you want know
more on its usage please send help as follows:

        % whois -h whois.nic.ad.jp HELP/e

If your machine doesn't have whois, use telnet instead as follows:

        % telnet whois.nic.ad.jp 43
        [ connecting messages... ]

If you unfortunately don't have direct Internet connectivity, you can
send a request via electronic mail as follows:

        % mail mail-server@nic.ad.jp
        whois ABC/e

If you can or want to read them in Japanese, omit trailing "/e" in any case.

JPNIC database is for network operation. It includes "point of contact" of
the information but is NOT intented to be a genaral directory.
(Don't ask us your friend's address, please.)

All of the domain names under JP are also obtained from JPNIC via two
methods, anonymous ftp and electronic mail as follows:

        % ftp ftp.nic.ad.jp
        Name: ftp
        Password: your_login_name
        ftp> get pub/jpnic/domain-list-e.txt

        % mail mail-server@nic.ad.jp
        send jpnic/domain-list-e.txt

In the list domains not connected are enclosed by parentheses.
If you can't find a name in the list (as well as whois), it doesn't have a
domain name under JP. Most universities of BITNET Japan don't use JP domain
names yet so they are reachable via a gateway but don't appear in the list.
JPNIC database only maintains the third level of JP domain names, so you
can't find any organizations hidden under the third level of a JP domain.

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