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by tcas
5001 days ago
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I think the term you're looking for is UDP hole punching, port knocking is performing a special sequence of connections (i.e. try TCP on 8100 then UDP on 4000 then TCP on 2000) to open up an additional port (like SSH) to a certain IP. I'd be curious if there exists such a company or even any good open source libraries that can tie into other servers. |
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