Vnc+offline+license+file+exclusive

Cause: The air-gapped machine’s system clock is set to 1970 (CMOS battery dead). The cryptographic signature on the license file has a "not valid before" date. Solution: Manually set the date to within 10% of the current year. Use an NTP server on a secure, isolated time source.

vncserver --license-status > License: Exclusive offline, valid until 2027-12-31 > Bound to: 8c:2e:3f:1a:4b:77 (MAC) + VM-UUID-abc123 > Signature: VALID vnc+offline+license+file+exclusive

| Aspect | Online / Floating License | Exclusive Offline License File | |--------|--------------------------|-------------------------------| | Internet required | Yes, periodic check | No | | Concurrent usage | Counted by license server | Single machine only (exclusive) | | Machine transfer | Deactivate → reactivate | Manual re-license from vendor | | Security risk | License server spoofing | License file theft (mitigated by binding) | Cause: The air-gapped machine’s system clock is set