Additionally you can disable some ports on the package filtering level. 此外，您可以在包過(guò)濾層上禁用某些端口。
However, the packet filter does not open the data package, and you still get to drive it to the destination if allowed. 但包過(guò)濾不打開(kāi)數據包，如果允許你仍要把它送到目的地。
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