I have problems with OTP Login. I can not login now at the promox webinterface. is there any option to disable the otp login for linux users? i have ssh access to the server.
What kind of problems? On your or on PVE's end? If you think it's a problem on PVE's side, please post the output of `pveversion -v` and describe the problems in more detail.
To disable it from SSH open /etc/pve/domains.cfg and remove the tfa line in the authentication section where you want to disable it.
I was experiencing the same problem on version 7.3 (disabled 2FA of my root user because I wanted to add a new node to the cluster to be enabled afterwards) and was looking for the file. Found it at /etc/pve/priv/tfa.cfg. I move the file to .bak and I could add the node. Then restored it.