stravanasu

Thank you for the advice!

Firewall on Linux is something I still don’t understand, and explanations found on Internet have always confused me. Do you happen to know some good tutorial to share? Or maybe one doesn’t need to do anything at all in distros like Ubuntu?

Regarding ssh: you only mean incoming ssh, right?

What’s the “RFP” frequently mentioned in the document? I can’t find any setting about it and am confused by Internet search results about it.