beautypg.com

Overview, About dns servers, About the dns domain name – TANDBERG Security Camera User Manual

Page 52: Configuration, About dns servers about the dns domain name

background image

52

D14049.03
MAY 2008

Grey Headline (continued)

About the DNS Domain Name

The DNS

Domain Name

is used when attempting to resolve

server addresses configured on the VCS that are without
any form of qualification (e.g.

ldap

or

ldap_server

but not

ldap.server

). It applies only to the following:

LDAP server

NTP server

External Manager server.

The DNS

Domain Name

is appended to the unqualified server

address before a query to the DNS server is executed.
If the server address is an IP address or is in the format of a
domain name, DNS will only be queried for the server address
as configured, without the DNS

Domain Name

appended. For

this reason we recommend that all server addresses use an IP
address or FQDN (Fully Qualified Domain Name).
The DNS Domain name plays no part in URI dialing.

Save

Click here to save your
changes.

To configure the VCS’s DNS settings:

System Configuration > DNS

.

You will be taken to the

DNS

page.

xConfiguration IP DN

S

Address 1 to Address 5

Sets the IP address of a DNS
server to be queried when
resolving domain names.

Domain name

Specifies the name to be
appended to an unqualified
server address before a
query to the DNS server is
executed.

Configuration

Overview

About DNS Servers

You must specify at least one DNS server to be queried for
address resolution if you wish to either:

use FQDNs (Fully Qualified Domain Names) instead of IP

addresses when specifying external addresses (for example
for LDAP and NTP servers, neighbor zones and alternates), or

use features such as

URI dialing

or

ENUM dialing

,

You can specify up to 5 DNS servers. The VCS sends requests
to all configured servers in parallel taking the first result
received and discounting the rest.

!

This can lead to confusing behavior should local network
administrators, for example, deploy ‘split horizon’ DNS
where records held on an internal, corporate, DNS

server use the same domain names but with different values to
those on the public internet - an often used tactic in corporate
intranets.

TANDBERG

VIDEO COMMUNICATIONS SERVER

ADMINISTRATOR GUIDE

Introduction

Getting Started

Overview and

Status

System

Configuration

VCS

Configuration

Zones and

Neighbors

Call

Processing

Bandwidth

Control

Firewall

Traversal

Maintenance

Appendices

DNS