How to set up a DNS zone for reverse lookups

(Last modified: 30Jan2003)

This document (10014767) is provided subject to the disclaimer at the end of this document.

goal

fact

Novell NetWare 5.0

Novell DNS DHCP Services

Novell DNSDHCP Management Console.

Novell DNS 5.x

Novell DHCP 3.x

Formerly TID 2944048

symptom

DNSDHCP - IN-ADDR.ARPA domain not working.

The DNS server does not respond when queried for the ptr record.

When creating records for the domain zone, the associated PTR record is not created.

IN-ADDR.ARPA Not Configured Properly.

cause

Zone for a subnet that has a 224 mask on the fourth byte. Example: Network address is 200.1.1.160 returning the range of addresses from 160 - 191 (160 being the subnet and 191 the broadcast address).

Note: IN-ADDR.ARPA does not recognize subnet masks. A class A address should include only the first octet of the address, i.e. 10.0.0.0. A class B address should include the first two i.e. 128.1.0.0. A class C should include the first three, i.e. 192.168.1.0 The numbers will show up automatically reversed as 1.168.192.IN-ADDR.ARPA. By identifying the larger subnet (0 on the last byte) the server will respond to any requests for lookup within that known range

fix

Create the in-addr.arpa domain and indicate a subnet that ends in a zero.
To create an IN-ADDR.ARPA Zone object, complete the following steps:

1. Click the DNS Service tab of the DNS/DHCP Management Console.
2. Click Create on the tool bar, select Zone, then click OK
The Create Zone dialog box is displayed. The default setting is to create a new, primary zone.

3. Select Create IN-ADDR.ARPA.
4. Use the browse button to select the NDS context for the zone.
5. Enter an IP address in the Zone Domain Name field.
After you enter the IP address, it is reversed and prepended to .IN-ADDR.ARPA and reflected in the box below the Zone Domain Name field.

6. Under Zone Type, select Primary or Secondary.
If you select Secondary, you must enter the IP address of the DNS Name Server that will provide zone out transfers to this zone.

7. In the Assign Authoritative DNS Server field, select a DNS server.

8. Once you have selected an authoritative DNS server, the Name Server Host Name field is filled with name of the authoritative DNS server.
Click Create, then click Save.

See documentation for Configuring DNS for more information: http://www.novell.com/documentation/lg/nw5/usnds/dhcp_enu/data/hz6yi7mh.html

fact

Formerly TID 2947297

document

Document Title:	How to set up a DNS zone for reverse lookups
Document ID:	10014767
Solution ID:	4.0.30580946.2284524
Creation Date:	20Aug1999
Modified Date:	30Jan2003
Novell Product Class:	Groupware NetWare Novell BorderManager Services

disclaimer

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