Configure SSSD on that client with

filter_users = root, admin

Verzonden vanaf mijn Samsung-apparaat

-------- Oorspronkelijk bericht --------
Van: peter--- via FreeIPA-users <>
Datum: 19-06-17 16:09 (GMT+01:00)
Onderwerp: [Freeipa-users] admin account locked due to external ssh authentication attempts

I manage a small FreeIPA domain that has one server that can be accessed through ssh from the internet. I occasionally find that the admin account is locked, when I try to log in to the FreeIPA admin interface (not available from the Internet), and it seems that this is due to an endless stream of incoming ssh authentication attempts for common names like "root" and "admin", and in the latter case, the authentication is forwarded to the FreeIPA server (since the user exists in the directory, I suppose), and the account gets locked out temporarily now and then due to too many failed attempts. Now, admin is not actually supposed to be able to login through ssh (or as a POSIX account in general), so I have tried to add:
     DenyUsers  admin
to sshd_config on that server to filter out these attempts, but it seems (as far as I can see in the logs) that the authentication is still tried against the FreeIPA server, before it gets blocked by sshd. What is the best way to prevent the evil bots of the Internet from locking out my admin account?
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