TCP Port Blocking / Opening

[Craig White]

On Thu, 2004-07-22 at 09:03, vlad at afspeed.org wrote:
> Hi, all --
> 
> Maybe my question is silly, but it doesn't hurt to ask.
> 
> I want to block/open TCP ports from terminal, how do I go about doing that?
> What commands do I use?  I don't want to use any GUIs, I want to understand
> how it works.
----
not a silly question.

man iptables

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Craig