lilo7 access with managed SSH keys

We have updated the authentication process for login server lilo7 (lilo7.science.ru.nl) as part of a test.

As of now, your ~/.ssh/authorized_keys file on lilo7 is ignored. This change is designed to prevent bad actors from easily gaining persistent access.

The good news is that we can now grant access to lilo7 from outside the previously very restricted IP ranges.

To gain access from a new IP range, you will need to provide us with your public SSH key and the IP range you will be connecting from.

For connections from the restricted range, both password and key authentication remain available options.

Generating a key pair can be done with:

ssh-keygen -t ed25519 -C "your_email@ru.nl"

If this test is successful, we plan to roll out this new authentication process to all login servers.