Hi,
If you are asking how to secure your box better, indeed the public IP address list of relays is often scanned and brute forced. That is why I recommend:
- - if you run only Tor on that box is best, if not make sure your apps are properly secured (mysql not listening on public IP if it's not a remote mysql server, strong passwords for mysql, ftp, etc.). - - make sure only ports used by Tor are open. There is no need for anything else. - - if you use ssh for administration that is fine, just change the port from 22 in /etc/ssh/sshd_config to some custom port, anything, like 2988 or whatever. - - permanently disabled plain password authentication or rhost authentication in sshd_config and only allow key-based authentication for better security and protection against weak password probing. - - do not allow any other users for SSH access.
Let me know if you have any other questions.
I have done all that, so covered on that aspect. Was wondering if disk encryption and use of something like TRESOR would be useful? -kali-