Unauthorized modifications to the VNC binary files can cause application crashes or unpredictable remote connection drops.
No. VNC Viewer does not require a license key, though you must still abide by the terms and conditions. Only VNC Server requires licensing .
In the Group Policy Management Editor , navigate to: Computer Configuration > Policies > Administrative Templates > RealVNC > Licensing Enable the Offline license setting and paste your key. Pro Tip: Don't Forget Renewal
This comprehensive guide covers how offline activation functions under RealVNC’s updated plan structures, where to find your authorized keys, and how to apply them across different operating systems. What is a RealVNC Offline License Key?
If you are looking for specific instructions on deploying these licenses, or if you are using an , the instructions may vary. realvnc offline license key new
If you received an .rfx file (commonly offline_license.rfx ):
Force system-level authentication (like Windows AD or Linux PAM) rather than relying solely on simple VNC passwords.
A RealVNC offline license key is a static, alphanumeric string that authorizes a specific number of devices without requiring them to phone home to RealVNC’s license servers. Unlike online keys (which validate periodically over the internet), offline keys rely on local file-based or manual entry activation.
Without the RealVNC cloud service, you cannot use the cloud discovery feature to see online hosts. Instead, VNC Viewers must connect directly to the VNC Server using its local IP address or Fully Qualified Domain Name (FQDN) over a specified port (default is 5900). Unauthorized modifications to the VNC binary files can
If your organization holds an Enterprise subscription, your account administrator can generate an offline license through the RealVNC Portal: Log into the . Navigate to the Deployment or Licensing section.
You cannot download an offline key from the user portal. You must contact or your reseller.
Online activation requires periodic check-ins with the vendor's servers. If those servers go down or your internet drops, your software might revert to a trial state. Offline keys provide permanent stability. Prerequisites for Offline Activation
Because offline keys often contain an expiration date (aligned with the subscription renewal), a cyclical maintenance window is required. Only VNC Server requires licensing
In headless Linux servers, the CLI is the standard method:
Store your generated offline keys in a secure credential manager. Do not leave them in plaintext deployment scripts or shared text files.
uses a 25-character license key . You can apply this key using the License Wizard, at the command line, or via Group Policy .