Understanding Domain Names - Sierra Wireless AirLink ES440 User Manual

Field
IP Manager Server 1
(IP Address) /
IP Manager Server 2
(IP Address)
IP Manager Server 1
Update /
IP Manager Server 2
Update
IP Manager Server1
Update (mins) /
IP Manager Server2
Update (mins)
IP Manager Server 1
Key /
IP Manager Server 2
Key
Rev 1 Nov.14
Description
The IP address or domain name of the dynamic DNS server which is
running IP Manager.
Note: To use the Sierra Wireless IP Manager server, enter:
edns1.eairlink.com (IP Manager Server 1)
edns2.eairlink.com (IP Manager Server 2)
Options are:
•
Only on Change
•
Periodic
How often, in minutes, you want the address sent to the IP Manager
User-defined password key used instead of the AirLink secret key
when using an IP Manager server other than the one provided by
Sierra Wireless.
Tip: Some PPPoE connections can use a Service Name to differentiate PPPoE devices.
Use the device name to set a Station Name for the PPPoE connection.

Understanding Domain Names

A domain name is a name of a server or device on the Internet associated with an
IP address. Similar to how the street address of your house or your phone
number are ways to contact you, both the IP address and the domain name can
be used to contact a server or device on the Internet. While contacting you at your
house address or with your phone number employ different methods, using a
domain name instead of the IP address uses the same method, just as a word
based name is easier for most people to remember than a string of numbers.
Understanding the parts of a domain name can help to understand how IP
Manager works and what you need to be able to configure the device. A fully
qualified domain name (FQDN) generally has several parts.
• Top Level Domain (TLD): The TLD is the ending suffix for a domain name
(.com, .net, .org, etc.)
• Country Code Top Level Domain (ccTLD): This suffix is often used after the
TLD for most countries except the US (.ca, .uk, .au, etc.)
• Domain name: This is the name registered with ICANN (Internet Corporation
for Assigned Names and Numbers) or the registry for a the country of the
ccTLD (i.e., if a domain is part of the .ca TLD, it would be registered with the
Canadian domain registry). A name must be registered before it can be used.
• Sub-domain or server name: A domain name can have many sub-domain
or server names associated with it. Sub-domains need to be registered with
Services Configuration
161