DUNCAN LINK lets authorized users view their organization’s fleet, vessel positions/tracks, operational information and cameras. The current service is camera.nguyenthuyen.vn ↗.
App support contact: Nguyễn Đình Thuyên — [email protected]. Start your email subject with “DUNCAN LINK”. This page does not collect passwords or sign-in codes.
Sign-in
Open Settings in the app and choose Sign in. Complete authentication in the system browser using an account authorized by your operator. If Cloudflare displays “Access Requested”, choose Approve when it corresponds to the sign-in you just initiated.
The app does not create accounts or make private cameras public. If access is denied, ask your administrator to verify your permissions. Reinstalling the app does not change server permissions. When your session expires, sign in again from Settings.
Slow or unavailable camera playback
Check your Internet connection, close the camera screen and reopen it. Try data-saving quality; HD depends on the source stream and vessel connectivity. If the app reports that the source is unavailable or timed out, provide the vessel name, camera identifier, time and error message so support can investigate the source. Do not change camera/NVR settings yourself.
The app supports single-camera viewing, HD/data-saving profiles and multi-camera viewing when available from the service. Cameras may have different quality and control capabilities. PTZ requires permission from your account and the server/camera configuration. Disabled controls do not mean that an in-app purchase is required.
Snapshots, maps and appearance
When a supported camera is playing, take a snapshot and use Save/share image. The image is sent only to a destination you choose. Share images only within the permissions granted by your operator.
Maps show vessel positions supplied by the service, not your phone’s location. Information may be delayed or unavailable when the source has not updated. The app does not replace navigational equipment or required safety procedures. Settings includes Vietnamese/English and Light/Dark/Automatic appearance options.
What to include in a support request
Include the app version/build, device type, operating-system version, steps to reproduce and the time with time zone. Attach screenshots/video only when you have permission, and hide unnecessary information. Do not send passwords, OTPs, keys, tokens or sensitive camera content through ordinary email.
For personal-data requests or withdrawal of access, see the Privacy Policy or email the contact above. Sign out in Settings to remove the app’s saved session from your device; this does not automatically delete the service’s audit history.