Hello
I'm trying to limit my server's open ports in CSF. The IPv4 port settings include:
# Allow incoming TCP ports
TCP_IN = "22,25,53,80,110,143,443,587 …”
# Allow outgoing TCP ports
TCP_OUT = "22,53,80,113,443,465,995 …”
# Allow incoming UDP ports
UDP_IN = "53"
# Allow outgoing UDP ports...