DNS Conﬁguration | XiNCOM XC-DPG603 specs

XC-DPG603

Twin WAN DNS → IP

VPN Gateway

Chapter Contents

•Overview

•Domain Name Conﬁguration

•DNS Server Conﬁguration

•Map Host URL

Chapter 8 - DNS Conﬁguration

Overview

A domain name is a unique name that identiﬁes a server on the Internet. A domain name typically consists of two or more parts usually separated by dots. In the example of, www.xincom.com, the given root name of xincom denotes the second level domain. Second level domain names are registered by a consumer/business through a Top Level Domain (TLD) registry such as Internic.com. The sufﬁx behind the root name, .com in this example, is a Top Level Domain in the Domain Name System. This denotes the highest level of the hierarchy after the root name of xincom. Both the second and top level domains create the unique domain name xincom.com.

Every Web, FTP or Email server requires an Authoritative Domain Name Server to route the domain name to the respective IP address or multiple IP addresses. Using the XC-DPG603 as an authoritative DNS gives the network administrator the ability to easily create and manage extra domain names. This provides a web site with expanded bandwidth and redundancy via auto-failover in case a single Internet connection fails.

The DNS Conﬁguration is a major part of the XC-DPG603. By acting as an authoritative name server, it is able to serve the incoming requests on UDP port 53 (DNS port) and provide the IP address of the web server. The XC-DPG603 manipulates the last step based on a few factors such as current bandwidth, load balance type and load share percentage (Advanced Port => Load Balance menu).

When a request comes in to your domain name, the XC-DPG603 looks at these factors to determine which WAN port should be used to access the server. When the trafﬁc load is higher on WAN 1, the XC-DPG603 will reply with the IP address of WAN2, in which case the user will connect to WAN 2 allowing for the best latency and speed.

The XiNCOM XC-DPG603 is capable of handling up to 10 domain names in such manner, giving you the ability to provide hosting services with automatic fail-over and load balancing (Check your Internet Service Provider service agreement before hosting any content

on your connections).

Conﬁgure DNS

You must have two WAN connections with static IP addresses in order to use the Load Balance and Fail-over functionality provided by the XC-DPG603 DNS to IP function. Only one broadband connection is required for the Authoritative DNS function. It is necessary to register your WAN1/WAN2 IP addresses with your Domain Name Provider for a static DNS.

NOTE:

Once you have conﬁgured the DNS conﬁguration, you may conﬁgure your connection validation and load balance options in the Advanced Port menu in Load Balancing and Port Options.