Using an offline license file keeps your network isolated, but remote access tools still require strict internal controls:
| Platform | Command | |---|---| | | "C:\Program Files\RealVNC\VNC Viewer\vncviewer.exe" -add OFFLINELICENSE | | macOS | "/Applications/VNC Viewer.app/Contents/MacOS/vncviewer" -add OFFLINELICENSE | | Linux | vncviewer -add OFFLINELICENSE |
Use the vnclicense tool to quickly add the file: Linux: sudo vnclicense -add /path/to/your/file.lic
Understanding VNC Offline License Files: A Complete Guide for Enterprise Deployment vnc offline license file
The VNC Server service reads this file at startup. It performs a cryptographic check to ensure the file hasn't been tampered with and matches the hardware it's running on. 2. When to Use Offline Licensing
For Windows environments, you can distribute the license key via the registry.
# RealVNC license file LicenseKey=ABCDE-12345-FGHIJ-67890 MachineID=7F3A8C2E9B1D4F6A0C8E5F9B2A4D7C1E Signature=gb5T78yHu7JkL90pQr2XyBvN6... Expires=never Features=cloud, recording, multi-session Using an offline license file keeps your network
This is useful to verify that the file you downloaded is valid before deploying it to production systems.
If your subscription renews, you will need to obtain an updated offline license from the Deployment page and re‑apply it to all your RealVNC Servers to avoid losing access.
On a properly licensed system, this will show the license source (“Offline”), the expiry date, and the features enabled (e.g., 128‑bit AES encryption, 256‑bit AES encryption, audio, chat, file transfer). When to Use Offline Licensing For Windows environments,
vnclicense -info /path/to/license.lic
To enable remote control capabilities in air-gapped or restricted networks. Why Use Offline Licensing?
RealVNC provides ADMX templates that work with Intune for cloud‑based policy management of Windows devices.
The method you choose depends on your environment, the number of computers, and your access to those computers.
Using an offline license file keeps your network isolated, but remote access tools still require strict internal controls:
| Platform | Command | |---|---| | | "C:\Program Files\RealVNC\VNC Viewer\vncviewer.exe" -add OFFLINELICENSE | | macOS | "/Applications/VNC Viewer.app/Contents/MacOS/vncviewer" -add OFFLINELICENSE | | Linux | vncviewer -add OFFLINELICENSE |
Use the vnclicense tool to quickly add the file: Linux: sudo vnclicense -add /path/to/your/file.lic
Understanding VNC Offline License Files: A Complete Guide for Enterprise Deployment
The VNC Server service reads this file at startup. It performs a cryptographic check to ensure the file hasn't been tampered with and matches the hardware it's running on. 2. When to Use Offline Licensing
For Windows environments, you can distribute the license key via the registry.
# RealVNC license file LicenseKey=ABCDE-12345-FGHIJ-67890 MachineID=7F3A8C2E9B1D4F6A0C8E5F9B2A4D7C1E Signature=gb5T78yHu7JkL90pQr2XyBvN6... Expires=never Features=cloud, recording, multi-session
This is useful to verify that the file you downloaded is valid before deploying it to production systems.
If your subscription renews, you will need to obtain an updated offline license from the Deployment page and re‑apply it to all your RealVNC Servers to avoid losing access.
On a properly licensed system, this will show the license source (“Offline”), the expiry date, and the features enabled (e.g., 128‑bit AES encryption, 256‑bit AES encryption, audio, chat, file transfer).
vnclicense -info /path/to/license.lic
To enable remote control capabilities in air-gapped or restricted networks. Why Use Offline Licensing?
RealVNC provides ADMX templates that work with Intune for cloud‑based policy management of Windows devices.
The method you choose depends on your environment, the number of computers, and your access to those computers.