I have two dozen remote headless computers that have lost the ability to connect via remote sharing. (ssh still works) In the settings, sharing, Screen Sharing it was ON before the upgrade, and then it was toggled OFF during the upgrade.

1) How can I re-enable the screen sharing from the command line?

Additionally, during my troubleshooting I run into this bug:

https://www.reddit.com/r/Ubuntu/comm..._screen_share/

Where the password for the screen sharing refuses to be saved until you clear the password to the keyring.

2) How can I clear the password to the keyring from the terminal, and how can I set the password for the Screen Sharing?