I read with great interest the entire recent thread "Possible malware?"
and tried to make sure that I set my firewall (firewalld) to block all
ssh connections from outside my home LAN. My ISP provides access via
cable modem and I set up my own router.
There are 3-4 laptops running opensuse 15.x (and 2 android phones) on my
home network (adresses configured with DHCP) and I log in periodically
via ssh (as user, not root) to the other computers to fix various issues.
Via the yast2 firewall configuration I set only the "public",
and "home" zones to have ssh as an allowed service. The "external"
other zones do not have ssh allowed.
I read quite a few articles on the firewall configuration, but I am not
sure that I set it right. Is there anything else I should do? Thanks,