Started off by

  1. Enabling unattended updates
  2. Enable only ssh login with key
  3. Create user with sudo privileges
  4. Disable root login
  5. Enable ufw with necessary ports
  6. Disable ping
  7. Change ssh default port 21 to something else.

Got the ideas from networkchuck

Did this on the proxmox host as well as all VMs.

Any suggestions?

    • cylemmulo@alien.topBEnglish
      1·
      1 year ago

      Yeah I’m confused if this is all on some Ubuntu server open to the internet or what. I just vpn into my home when I’m gone, keep it simple