Monitor your dynamic IP & update IPtables when it changes

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December 22nd, 2008 by Mr. Blue

If you have DSL or an otherwise sometimes-changing IP address on the public interface of your IPtables-based router, this may be of use to you.

In a nutshell, it’ll monitor your public IP and reload the IPtables if something changes.

No, it’s not a daemon, no it doesn’t update the kernel table like it should, and yes, it has to be called from cron.