Security

• sudo
  • Quickstart
• sshd
  • Login with your ssh key
  • /etc/ssh/sshd_config
  • ssh-audit
  • External links
• ufw
  • Quickstart
  • Allow only certain interfaces
  • Delete a rule
• Unattended upgrades
  • Quickstart
  • External links
• httpd
  • sslyze
  • nikto