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Should nmap show ports?

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TinMan11

Occasional Visitor
Perhaps a silly/stupid question, but when I run an nmap scan from an external source, not all of my open port forwards show up.

Should they?

I have confirmed they are in /temp/nat_rules.

Thanks in advance.
 
To show as open there needs to be a service listening and responding on that port as well as the forwarding rule being present.
 

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