Option to set auth-gen-token in OpenVPN GUI
This option is useful to avoid having to frequently manually re-authenticate when using MFA.
After successful user/password authentication, the OpenVPN server will with this option generate a temporary authentication token and push that to client. On the following renegotiations, the OpenVPN client will pass this token instead of the users password. On the server side the server will do the token authentication internally and it will NOT do any additional authentications against configured external user/password authentication mechanisms.The lifetime argument defines how long the generated token is valid. The lifetime is defined in seconds. If lifetime is not set or it is set to 0, the token will never expire.
This feature is useful for environments which is configured to use One Time Passwords (OTP) as part of the user/password authentications and that authentication mechanism does not implement any auth-token support.
This should be the preferred option over increasing/disabling
Updated by Kris Phillips about 1 month ago
Marcos M wrote in #note-2:
It's unclear if the concerns mentioned on the following link have been addressed - best to keep this as a custom option for now until that's clarified:
I don't think it's relevant to hold back this feature for this. All of the items they discussed were pretty much resolved in 2.5.X. We're on 2.6.X now and there seems to have been even more significant improvement here to the point I've never seen anyone run into any of the weird edge cases their discussing.
Given the difference of "people getting booted after 1 hour when using 2FA solutions" and "they might have a problem, maybe, under extremely unusual circumstances", I think adding a simple checkbox with a timeout value field isn't something we should hold back. Especially if it's off by default.