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Chapter 4 In-bound function
Authorities DNS is just a fancy term for the official IP address keeper/provider of
particular Domain (or Internet) name, such as
www.example.com
is analogous to a
telephone book where a person’s name is associated with his telephone number.
Wikipedia, the free encyclopedia has a good general discussion of DNS:
http://en.wikipedia.org/wiki/Domain_Name_System
This IN-BOUND ROUTER DNS server contains the names and Internet addresses
of servers that you wish to host. In order for all DNS requests for your domain names to
be ultimately routed to your IN-BOUND ROUTER, it has to be setup at the registrar of
your Internet name. In general, logon to your registrar site, and manage your domain
name. For example,
www.example.com
Current is located at a WEBhosting company:
Domain servers in listed order: NS0.DNSMADEEASY.COM
NS1.DNSMADEEASY.COM NS2.DNSMADEEASY.COM
NS3.DNSMADEEASY.COM NS4.DNSMADEEASY.COM We need to change
www.example .com to be hosted by IN-
BOUND ROUTER; so we follow the registrar’s
instructions and delete: NS2, NS3, and NS4, and assign:
Domain servers as below
Name
IP address
NS0.EXAMPLE.COM
WAN1
NS1.EXAMPLE.COM
WAN2
The name is arbitrary; what are important are the IP addresses. It is absolutely
necessary for WAN1 to be a static address, and for redundant, fault-tolerant accesses,
WAN2 should also be a static address. It would take approximately 24
– 48 hours for
this change to take effect throughout the Internet.
