💻 iptables

• Systemd

  • sudo systemctl enable iptables.service

  • sudo systemctl start iptables.service

  • sudo systemctl restart iptables.service

    After edits

• Port forwarding

  • sudo iptables -P FORWARD DROP

• Systemd

  • sudo systemctl enable ufw.service

  • sudo systemctl start ufw.service

• SSH Limiting

  • Add rule

    • Subcat: Services

    • Application: SSH

    • Policy: Limit

• Port forwarding

  • sudov /etc/ufw/sysctl.conf

    • Uncomment..

      #net/ipv4/ip_forward=1
      #net/ipv6/conf/default/forwarding=1
      #net/ipv6/conf/all/forwarding=1
      

• sudo ufw reload