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Deleting initial admin user?

For security reasons, I'd like to replace the 'admin' user with a user of a different name with admin privileges. Is this possible?



  • No, the initial 'admin' user cannot be deleted - only its password be changed. I'm curious, do you think it's a security thread? A potential attacker still has to figure out the password and you can set this arbitrary difficult.



  • Thanks for letting me know!

    I am new to administrative best practices, but I do think that 'admin' is a common user ID to attempt to brute force attack with, so I believe it is good idea to change. While we have a very strong password, the server is publicly accessible, so there is a possibility of attack (I see unknown IPs attempting to log in relatively frequently in the logs.)

    Other things (probably more important than changing the name) I would suggest to address this:

    • Being able to make an IP ban after several incorrect logins.
    • Two-factor authentication

    Just a possible suggestion! Or if you could point me to resources to figure out how to do this myself, I just don't have much experience, but I could try to figure out.

  • I don't think brute force attacks are a thread if you use a proper password. One could argue that having a known username makes denial-of-service attacks more efficient since it takes more of the server's resources to compare a password (via hash) than just comparing a username - but I think this is marginal. And to see unknown IPs attempting to log in is a common sight in public servers. Public IPs get automatically scanned en masse for weaknesses, like the most common username/password combinations.

    Being able to make an IP ban after several incorrect logins.

    Something similar JATOS has already: after 3 failed log-in attempts one gets banned for 1 minute for doing any other attempt with this username. It's effective, although blocking by IP would be even better.

    Two-factor authentication

    I agree it would be nice. We are about to add tokens to make JATOS' API more accessible ( Maybe we can add two-factor-auth too when we are already on it. If you want to give it a try: the three most important resources are



  • Many thanks, Kristian! This all makes perfect sense.

    Being able to make an IP ban after several incorrect logins.

    Is this a built in feature, or something I need to toggle on? Just checking to make sure I have it. But that is a great thing, thanks!

  • This banning-by-username-after-3-failed-login-attempts comes out of the box.

    Btw. there is a config that you might want to turn on to increase security:



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