Hello, After setting static address on wlan0 (for port forwarding on my ZTE ZXHN H298N Hyperoptic router) I was unable to connect to internet. Only after disabling firewall in openSUSE 15.0 I was able to make the connection. Now I am worried that my system is vulnerable to outside attacks.
The default zone is Public zone. I have set the firewall to all zones. It does not matter which zone I choose, until I disable the firewall I do not get internet connection.
What can be done to protect my system. All suggestions will be greatly appreciated.