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Prevent Discovery of Port from NMAP scan using -Pn

With -Pn it simply assumes that the host is online, even if various heuristics (ICMP ping and others) fail. -p1433 will then only check if this specific port is open. Since you are explicitly running ...
2 votes

Why did Nmap not yield results when scanning a friend's public IP address?

So is Nmap pretty more useless unless you can get to the internal network? No, it was super useful! It answered the question of how exposed your system is on the internet. It found nothing, so it ...
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