@@ -12,4 +12,4 @@ The latter option is intended for scripts that are executed without the user bei
Once you have filled out this dialogue, click **Add**. The SSH key is now associated with your HPC account and is either waiting for administrator approval (_Command_-type association) or can be used immediately (_Interactive_-type association).
**Note:** Access to the cluster requires password and second factor on first connection within a certain time frame. If you use an ssh config file (a file in your `.ssh` folder named `config`; for more info query your preferred search engine or start [here](https://linuxhandbook.com/ssh-config-file/)), make sure that for this domain (e.g., `*.hpc.itc.rwth-aachen.de`) you are **not** using the public key as your preferred authentication method (i.e., do **not** set `PreferredAuthentications publickey` for this domain). Doing so will prevent the password request and thus login.
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**Note:** Access to the `login18-4.hpc.itc.rwth-aachen.de` login node requires password and second factor on first connection within a certain time frame. If you use an ssh config file (a file in your `.ssh` folder named `config`; for more info query your preferred search engine or start [here](https://linuxhandbook.com/ssh-config-file/)), make sure that for this domain (e.g., `*.hpc.itc.rwth-aachen.de`) you are **not** using the public key as your preferred authentication method (i.e., do **not** set `PreferredAuthentications publickey` for this domain). Doing so will prevent the password request and thus login.
