DDNS for RTSP camera
Use this page when the camera is meant to be reachable from the internet, but the public IP changes or you do not want to rely on remembering raw IP addresses.
DDNS does not replace the need for a publicly reachable RTSP stream, but it often makes a dynamic public IP workable for testing and embed use cases. This page helps you decide whether DDNS is the missing part of your setup.
What to check first
- confirm that the public IP or hostname you use really points to the current camera network
- check whether the router or camera updates the DDNS record automatically and correctly
- pair DDNS with the right port forwarding and security decisions before you test again
Questions behind DDNS and changing public IPs
Start with the DDNS need itself, then connect it back to public RTSP reachability.
可以。如果您的 IP 地址会不时更改,请使用免费的 动态 DNS 服务(如 No-IP、DuckDNS、Dynu)。
- 您将获得一个名称,它会自动更新为您的当前 IP 地址。
- 大多数路由器和摄像机在设置中都支持 DDNS 功能。
您需要在路由器上配置端口转发(通常是端口 554),指向摄像机的内部 IP 地址。
- 您可以在网上找到针对特定路由器的教程。
- 请使用强密码,并禁用摄像机上不必要的服务。
您可以在 whatismyipaddress.com 网站或路由器的管理界面中查看您的公网 IP。
注意:如果您使用移动或共享网络,您的 IP 可能会与其他用户共享。