Appendix B: What Is Ddns; How Does Ddns Work; Enabling Ddns; How Ddns Benefits You - Lorex QLR464 Instruction Manual

Appendix B: What Is DDNS?

APPENDIX B: WHAT IS DDNS?
DDNS stands for Dynamic Domain Name Service. DDNS allows you to connect to your system
even if your IP address changes.
Your internet provider supplies you with an address called an IP address (Internet Protocol
address). An IP address is the address to contact your computer. The IP address constantly
changes. In other words, you have a dynamic IP address. An IP address that does not change is
called a Static IP address. Static IP addresses often cost more money, and must be requested by
the user.

How does DDNS work?

Hypothetically, if your friends' phone number changed every minute, it would be impossible to
contact them. In this case, your friends' phone numbers would be dynamic: ever changing, and
never the same.
IP addresses function in a similar way: the address constantly changes. If the address of your
system constantly changes, how can you connect to your system? This is where DDNS solves the
problem.
Imagine DDNS as a human telephone operator. If you wanted to contact your friend whose phone
number changed every minute, you can tell the telephone operator your friend's home address.
Because your friend's home address never changes, the telephone operator can tell you your
friend's phone number, no matter how often their phone number changes.

Enabling DDNS

To enable DDNS, you must register with a DDNS provider. Lorex offers free DDNS service for
certain products. Only specified systems are DDNS enabled.
A typical DDNS address may look like this: mysystem.lorexddns.net.
"mysystem" is the address name of the system chosen by you. You may re-name "mysystem" to
any name you wish. For example, if you wanted to name your system: my_lorex_system, the DDNS
address would be: my_lorex_system.lorexddns.net.

How DDNS benefits you

DDNS allows you to connect to your system even if your IP address changes. To access your
system, simply enter in the DDNS name of your system into your web browser, or remote software
application.
Since your DDNS address is static, you do not have to worry about your system's address
constantly changing.
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