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What I'd like to grasp, nevertheless, is whether or not we could block all ports in place of just a couple. Would it not function as expected with no --ctorigdstport? Then I am able to open several ports (placing a few procedures in advance of this one particular) if required and after that have everything else blocked.

Finally, you'll need to clean up up iptables restart the docker company first, if you messed it an excessive amount of attempting to lock down the port as I 슬롯 did.