Which ports should be open for scanning?

Started by yes7wong

yes7wong

Which ports should be open for scanning? 30 June 2015, 16:05

I would like to perform a scan from my head quarter office to Branches office PC however the scanner not return any result and I suspecting the traffic was blocked by the firewall.

May I know what is the necessary port to be open in order to scan the Branches PC?

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Andrew

Re: Which ports should be open for scanning? 30 June 2015, 22:46

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Registered: 18 years ago
Posts: 3 519

There can be tens of ports used depending on the type of scan used, and also a variety of protocols. As a minimum TCP, UDP and ICMP should be permitted.

Try the built-in ping command to see if you can reach any computers in the other network.

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