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?

  • Comfortable-Cause-81@alien.topBEnglish
    1·
    10 months ago

    ssh default port is 22.

    Really, unless I’m trying to learn security (valid), or have something to protect. I do the basic best practices.

    Real security is an offline backup.

    • PreppyAndrew@alien.topBEnglish
      1·
      10 months ago

      SSH port really doesnt matter. If it is an exposed SSH port, it will probably get picked up if its 69 or 22.