Chapter 4 System Configuration
© 2017 Harmonic Inc. All rights reserved.
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Harmonic MediaGrid Release 4.1
Joining a Harmonic MediaGrid Cluster to a Lightweight Directory Access Protocol
(LDAP) Domain
You can use the
nslookup
command to find an IP address associated with a host name, for
example:
$ nslookup contentdirector-3
Server: mediagrid-3.company.local
Addresses: 10.30.3.200, 10.30.7.200
Setting up Reverse DNS Lookups
to add reverse DNS entries.
Setting up Reverse DNS Lookups
Follow these steps to configure reverse DNS entries for Harmonic MediaGrid devices on a
Microsoft Windows-based DNS server. For other types of DNS servers, consult the appropriate
documentation or Network Administrator to set up reverse DNS entries.
These instructions are an overview of setting up reverse DNS lookups. Refer to the appropriate
Windows documentation for complete instructions.
NOTE:
The following instructions apply only to a simple DNS/network configuration in which there is a
single DNS server.
To set up reverse DNS lookups:
1. Log in to the console of your Microsoft Windows DNS computer. From the Manage Your
Server window, click
Manage this DNS server
.
2. In the left panel of the DNS management window, click the
Reverse Lookup Zones
folder
that is associated with the DNS server. There may already be reverse zones defined for the
DNS server.
3. Right-click to select the
Reverse Lookup Zones
folder and then select
New Zone
from the
menu. The New Zone Wizard displays.
4. Start the New Zone Wizard.
5. Select
Primary zone
as the Zone Type from the list of options.
6. On the Active Directory Zone Replication Scope screen, select the option
To all DNS servers
in the Active Directory domain
[YOUR DOMAIN]
.
7. On the Reverse Lookup Zone Name screen, select the
Network ID
option and then enter the
Harmonic MediaGrid subnet.
8. On the Dynamic Update screen, select the option
Allow both non-secure and secure
dynamic updates
.
9. Finish the new Zone Wizard.
10. Display again the DNS management window and then expand the
Reverse Lookup Zones
folder to see the sub-entries. Verify that the newly created reverse zone is shown.
Repeat the steps above on each Harmonic MediaGrid subnet.
Joining a Harmonic MediaGrid Cluster to a Lightweight Directory
Access Protocol (LDAP) Domain
In addition to supporting Active Directory Services (ADS), Harmonic MediaGrid supports
Lightweight Directory Access Protocol (LDAP). The LDAP protocol manages authentication when
querying and modifying directory services running over TCP/IP.
