Open multiple ports to an IP firewall-cmd -permanent -add-rich-rule='rule family='ipv4' source address='10.159.60.29' port protocol='tcp' port='1:65535' accept' firewall-cmd -reload III. Centos 6 iptables Adjust the default policy (deny all access by default and allow all access instead) firewall-cmd -permanent -zone=public -set-target=ACCEPT firewall-cmd -reloadĭ. Delete open ports firewall-cmd -zone=public -remove-port=8083/tcp -permanent firewall-cmd -reloadĬ. View ports firewall-cmd -zone=public -query-port=8083/tcpī. Open the port with firewall-cmd -zone=public -add-port=8083/tcp -permanent, and reload with firewall-cmd -reload. If there is no return, it proves that there are no open ports. Use firewall-cmd -list-port to view the open ports of the firewall. If it is not enabled, use systemctl start firewalld to open the firewall. Use systemctl status firewalld to check the firewall status. Reject all packages: firewall-cmd -panic-onĬancel reject status: firewall-cmd -panic-offĬheck whether to reject: firewall-cmd -query-panic 4. To view the region of the specified interface: firewall-cmd -get-zone-of-interface=eth0 View area information: firewall-cmd -get-active-zones Update firewall rules: firewall-cmd -reload

View all open ports: firewall-cmd -zone=public -list-ports Start a service: systemctl start rvice Close a service: systemctl stop rvice Restart a service: systemctl restart rvice Displays the status of a service: systemctl status rvice Enable a service on startup: systemctl enable rvice Disable a service on startup: systemctl disable rvice Check whether the service is started: systemctl is-enabled rvice View the list of started services: systemctl list-unit-files|grep enabled View the list of services that failed to start: systemctl -failed 3.

Startup enable: systemctl enable firewalld 2. Power on disable: systemctl disable firewalld View firewall status: systemctl status firewalld Turn off firewall: systemctl stop firewalld Start firewall: systemctl start firewalld

Iptables reload