Q-See QC40198 User Manual page 129

MY Q-SEE DDNS
DDNS Type: You can select Q-SEE DDNS from the dropdown list.
Server IP: You can use ping command to get server's IP
Port: input server port here.
Domain Name: Get the domain name you get from your DDNS service provider.
User: Get the user name you get from your DDNS service provider.
Password: Enter corresponding password.
Highlight the icon in front of Enable to enable the DDNS server configuration.
QC40198/QC40196 User Manual
Figure 8-4