Jun 28, 2024

ufw and firewalld

 ufw

  • ufw allow 22
  • ufw allow 22/udp
  • ufw status
  • sudo ufw allow from 103.121. to any port 10000
firewalld
  • firewall-cmd --list-all
  • firewall-cmd --list-services
  • systemctl start firewalld
  • systemctl stop firewalld
  • systemctl disable firewalld
  • firewall-cmd --list-services
  • firewall-cmd --list-ports
  • firewall-cmd --add-port=22/tcp

https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/security_guide/sec-controlling_traffic#sec-Disabling_All_Traffic_in_Case_of_Emergency_Using_CLI

NOT_ENABLED: not in 'public'

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