this post was submitted on 10 Oct 2023
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Privacy
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Why would you not have all your demo stuff in a throwaway VE. I would personally just set up a 2FA on something pointless and empty, like a blank proxmox install. Use a separate authenticator for tutorials or just use images that are already out there.
I've entered some 2FA codes about 20 seconds after refresh before, so yeah there is a risk.
is there some useless service that I can use to ser up a 2FA for a demo?
Is this being taught in a computer lab or will the students all have laptops or smartphones? If so I would almost be tempted to just walk them through all creating a temporary email address and then setting up 2fa on the accounts. But yeah Gmail accounts.
where can I find temporary mails that have 2FA logins?
You can create endless Gmail accounts for free and google has several different 2fa options to choose from. So you could make one '2faClassDemoEmail@gmail.com' or have each person on their own device create dummy Gmail addresses like 'StudentName2FADemo@gmail.com' and have each student go through the process individually. They would only be temporary in that you'd just stop using it after the class and google would eventually get rid of it(maybe?) After long enough without any use. I don't think you're going to find something that just generates dummy 2fa codes for demo purposes.