Q-See QC40198 User Manual page 106

WEB OPERATION
Please refer to the following chart for detailed information.
Parameter
Server Type
Server IP
Server Port
Domain Name
User
Password
Interval
NAS
NAS interface is shown in Figure 7-41.
Function
You can select DDNS protocol from the dropdown list and then
enable DDNS function. The private DDNS protocol means you
use your self-defined private protocol to activate DDNS function.
DDNS server IP address
DDNS server port.
Your self-defined domain name.
The user name you input to log in the DDNS server.
The password you input to log in the DDNS server.
 Device sends out a live signal to the server regularly.
You can set interval value between the device and DDNS

server here.
Figure 7-41
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QC40198 User Manual