12
3
Is there a way to tell the difference between my ISP blocking traffic on certain ports and my NAT router/firewall blocking that traffic? The sites “Shields Up” and “Can you see me” show my ports closed or not accessible, but I assume that is primarily due to the NAT router. (Obviously, I could just remove the router, connect directly and use those sites, but is there a simple way to test without doing that?)
1Bash has
for ((counter=1; counter <= 65535; ++counter)); do
and also notice the lowercase variable (uppercase is reserved for system variables). – tripleee – 2018-04-11T11:52:46.277