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A firewall is a program that controls the incoming and outgoing network traffic on a system. Use this tag for all questions related to firewall configuration and operation.

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Simplest answer: use dynamic DNS There are some free (for private use) options around like noip.com, or dyndns.org EDIT: You have to create a script (for example) that updates the iptables rules con …
answered Jul 6 '15 by Lenniey