synapse1278, 1 year ago

Understood. Any public-facing server will be bombarded by bots. You need to deploy measures to avoid being hacked:

1. Firewall: lockdown everything, allow only the strict necessary
2. Remote login/SSH: update default username and pasword, only allow remote login using Encryption Key authentification
3. (Optional) configure fail2ban to slowdown the attacks
4. Keep your server up-to-date: configure auto-update, unattended-update or similare
5. Setup and keep regular backups: be ready to nuke your server at anytime, with the confidence you can restart fresh in a short time and low effort

Obviously, there are many other security steps that can be put in place, but firewall and ssh hardening are absolutely mandatory