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Task 6Managing IP Addresses by Using DNS
About Managing IP Addresses
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Basic Dial NMS Implementation Guide
Using a Batch File to Make Changes to a DNS Configuration
CNR can use batch files to make large and small-scale changes to the DNS configuration within your
network.
To use the batch-file facility to add and remove entries, follow these steps:
Step 1
Define the batch file by entering
zone
commands:
zone the.net. addRR doc-core-02 A 172.21.10.6
zone the.net. addRR doc-core-03 A 172.21.10.7
zone 10.21.172.in-addr.arpa. removeRR 6 PTR unused-6.the.net.
zone 10.21.172.in-addr.arpa. removeRR 7 PTR unused-7.the.net.
zone 10.21.172.in-addr.arpa. addRR 6 PTR doc-core-02.the.net.
zone 10.21.172.in-addr.arpa. addRR 7 PTR doc-core-03.the.net.
server dns reload
The previous batch-file example shows how to add two new device/IP addresses. In addition to adding
two “A” records (lines 1 and 2), remove the “unused” PTR records from the reverse zone (lines 3 and
4) before adding the new “PTR” records, in place of the unused records, to the reverse zone (lines 5 and
6). See line 7 to reload the DNS server.
Step 2
Run the script by using the
-b
option:
nrcmd> -b < 172.21.10.batch
The following output appears:
nrcmd>
zone the.net. addRR doc-core-02 A 172.21.10.6
100 Ok
doc-core-02 IN A 172.21.10.6
nrcmd>
zone the.net. addRR doc-core-03 A 172.21.10.7
100 Ok
doc-core-03 IN A 172.21.10.7
nrcmd>
zone 10.21.172.in-addr.arpa. removeRR 6 PTR unused-6.the.net.
100 Ok
removing 6 IN PTR unused-6.the.net.
nrcmd>
zone 10.21.172.in-addr.arpa. removeRR 7 PTR unused-7.the.net.
100 Ok
removing 7 IN PTR unused-7.the.net.
nrcmd>
zone 10.21.172.in-addr.arpa. addRR 6 PTR doc-core-02.the.net.
100 Ok
6 IN PTR doc-core-02.the.net.
nrcmd>
zone 10.21.172.in-addr.arpa. addRR 7 PTR doc-core-03.the.net.
100 Ok
7 IN PTR doc-core-03.the.net.
nrcmd>
server dns reload
100 Ok