domain:      [mandatory]  [single]     [primary/look-up key]
descr:       [mandatory]  [multiple]   [ ]
admin-c:     [mandatory]  [multiple]   [inverse key]
tech-c:      [mandatory]  [multiple]   [inverse key]
zone-c:      [mandatory]  [multiple]   [inverse key]
nserver:     [optional]   [multiple]   [ ]
sub-dom:     [optional]   [multiple]   [ ]
dom-net:     [optional]   [multiple]   [ ]
remarks:     [optional]   [multiple]   [ ]
notify:      [optional]   [multiple]   [inverse key]
mnt-by:      [optional]   [multiple]   [inverse key]
mnt-lower:   [optional]   [multiple]   [ ]
changed:     [mandatory]  [multiple]   [ ]
source:      [mandatory]  [single]     [ ]


The Domain Registry:

There is only one type of object in this registry;
the domain object.

This object represents Top Level Domain (TLD) and
other domain registrations.  It is also used for
Reverse Delegations.  The domain name is written in
fully qualified format, without trailing "." .

An example of a domain object is shown below:

domain:  104.54.194.in-addr.arpa
descr:   Universiaet Karlsruhe
descr:   Informatik Rechnerabteilung IRA
descr:   Am Fasanengarten 5
descr:   D-7500 Karlsruhe, FRG
admin-c: WZ5-RIPE
tech-c:  MR420-RIPE
zone-c:  KB7-RIPE
nserver: iraun1.IRA.UKA.DE 
nserver: unido.Informatik.Uni-Dortmund.DE
sub-dom: 0/25.104.54.194.in-addr.arpa 128/25.104.54.194.in-addr.arpa
dom-net: 129.13.0.0 192.54.104.0
remark:	 splitted for subnets
notify:  guardian@xlink.net
changed: nipper@ira.uka.de 910208
source:  RIPE


Each attribute has the following syntax:
------------------------------------------------------------------

domain:
	IP domain name
	Format: Full qulified domain name without trailing ".".
	Example: 
		domain: 104.54.194.in-addr.arpa
	Mandatory

descr:
	Description of the domain. 
	Give organisation and place.
	Postal address is not needed, this can be found via the contacts.

	Format: free text, one line per entry, multiple lines in sequence
	Example:
		descr:   Universiaet Karlsruhe
		descr:   Informatik Rechnerabteilung IRA
	Mandatory


admin-c:
 	Uniquely assigned NIC-handle of an  administrative
        contact  person.  
	This is someone who will be contacted about administrative
	things such as domain registration etc.
	
	Format:
        <nic-handle>

	example:
		admin-c: WZ5-RIPE
	Mandatory, Multiple

zone-c:
	Name of the zone contact for the domain.
	This is the person listed in the SOA record for the domain.

	See admin-c above

tech-c:
	Name of technical contact person.
	This is someone to be contacted for technical problems 
	such as (mis)behavior of nameservers on the net etc.

	See admin-c above.

nserver:
	List of nameservers for of this domain. Primary first.
	Format: Full qualified domainname without trailing "." OR
	        IP Adress(es) of the nameserver.
	example:
		nserver: iraun1.IRA.UKA.DE
	Mandatory, Multiple

sub-dom:
	List of subdomains of the domain
	Format: Relative domainname to the domain.
	Example:
		sub-dom: 0/25.104.54.194.in-addr.arpa 128/25.104.54.194.in-addr.arpa
	Mandatory, Multiple

dom-net:
	List of IP networks in this domain.
	Format: dotted quad including trailing 0s
	Example:
		dom-net: 129.13.0.0 192.54.104.0
	Optional, Multiple

remark:
	Remarks

	Format: text string
	Example: 
		remark: splitted for subnets
	Optional

notify:
     The notify attribute contains an email address to which
     notifications of changes to this object should be send.

     Format:
          <email-address>

          The <email-address> should  be  in  RFC822  domain
          syntax wherever possible.

     Example:

          notify:  guardian@xlink.net

     Status: optional, multiple lines allowed

changed:
	Who and when changed this last.

	Format: <email-address> YYMMDD
	Example:
		changed: nipper@ira.uka.de 910208

source: RIPE
	Source of the information.
	This is used to separate information from different sources
	kept by the same database software.

	Format: RIPE
	Mandatory

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