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Scan the Internet for Open Ports

Can anyone help me understand how shodan scans the internet for open ports, but when i try it, it doesnt work? For example, i tried scanning with nmap across multiple subnets with masscan etc, no luck. Whats the trick?
(Aug 26, 2026 09:24 PM)NotAFuzeWZ Wrote:  Can anyone help me understand how shodan scans the internet for open ports, but when i try it, it doesnt work? For example, i tried scanning with nmap across multiple subnets with masscan etc, no luck. Whats the trick?

There's no trick. Port scanning works. Does scanme.nmap.org "not work?"
(Aug 26, 2026 09:24 PM)NotAFuzeWZ Wrote:  Can anyone help me understand how shodan scans the internet for open ports, but when i try it, it doesnt work? For example, i tried scanning with nmap across multiple subnets with masscan etc, no luck. Whats the trick?

What subnets are you scanning? What does "not working" mean for you?
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