Cisco Systems Dial NMS manual Host = doc-oob-03.the.net

Task 6—Managing IP Addresses by Using DNS

About Managing IP Addresses

Step 2 Understand how the CGI scripts function.

There are two scripts that work together to return an NSLOOKUP list query (ls) for a specified zone in a CGI link.

•dnszone.pl—Runs the CGI process. In the subnet column in Figure 24, the entry 172.21.10.0/24 is an active link that calls the dnszone.pl script.

The active link is coded as:

<td><a href="/cgi-lwt/dnszone.pl?zone=10.21.172.in-addr.arpa.">172.21.10.0/24</a></td> Once invoked, dnszone.pl calls the second script, dnszone_dump.

•dnszone_dump—An expect script that steps through the NSLOOKUP interactive mode and returns the output of a “ls [ZONE]” command to the dnszone.pl script. The zone list, returned to the requesting web-based management browser, appears:

ls 10.21.172.in-addr.arpa.

[www.the.net]
0	host =	broadcast-0.the.net
1	host =	unused-1.the.net
2	host =	unused-2.the.net
3	host =	unused-3.the.net
4	host =	unused-4.the.net
5	host =	doc-core-01.the.net
6	host =	doc-core-02.the.net
7	host =	doc-core-03.the.net
8	host =	doc-ls1010-01.the.net
9	host =	doc-switch-01.the.net
10	host =	doc-pix-01.the.net
10.21.172.in-addr.arpa.	server = onionring.the.net
11	host = doc-AS5850-01.the.net
12	host = doc-oob-03.the.net
13	host = doc-2610-01.the.net
14	host = doc-3810a-01.the.net
15	host = doc-3810d-01.the.net
16	host = doc-ubr7246-01.the.net
17	host = doc-switch-02.the.net

Step 3 Download the source code for the scripts and customize them for your environment.

Go to http://www.cisco.com/univercd/cc/td/doc/cisintwk/intsolns/dialnms/dnszone.txt

Basic Dial NMS Implementation Guide

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