Run the following command to see all zones on OpenSUSE Linux: work – For use at your workplace where you trust your coworkers and other servers.I do not recommend this zone for dedicated servers or VMs connected to WAN. trusted – All network connections are accepted.For cloud servers or server hosted at your place always use public zone. You only allow the required ports and services. public – You do not trust any other computers and servers on the network.internal – For use on internal networks when you mostly trust the other servers or computers on the LAN.home – Useful for home computers such as laptops and desktops within your LAN where you trust other computers.You need LAN and WAN interfaces too for masquerading (NAT) to work correctly. external – Useful for router type of connections.drop – All incoming network connections dropped, and only outgoing network connections allowed.dmz – Classic demilitarized zone (DMZ) zone that provided limited access to your LAN and only allows selected incoming ports.Only network connections initiated from within the system are possible. block – All incoming network connections rejected.You can see all zones by running the following ls command: zonesįirewalld zones are nothing but predefined sets of rules. You have two main ideas as follows when it comes to firewalld on OpenSUSE Linux. Sudo systemctl restart firewalld # want to restart the firewalld? # Basic concepts of FirewallDįirewalld simplifies the concepts of network traffic management. One can disable and stop firewall as follows: Enable the firewall at boot time using the systemctl command:
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