4

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?

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[-] reviewmynotes@alien.top 1 points 11 months ago

You have a good list to start with. Consider adding sshguard or fail2ban in the short term and crowdsec in the long term. Also use lynis on Unix systems and PingCastle on AD systems and see what suggestions those make. Just a few suggestions off the top of my head.

this post was submitted on 22 Nov 2023
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