WEBVTT

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If you want to completely flush all IP table and reset to an open firewall state, you should set the

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accept policy on all exchanges, flash all net filter tables and delete all IP tables, user defined.

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James, if there is any, this is useful to use at the beginning of any final script in order to flush

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everything and to build it from the ground up.

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I'm creating a script named Delete Firewall that S.H..

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The first step is to set the except policy on all the change of the filter table, their input output

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and fought for change is used only for our allotted packets.

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And that means that the Linux machine has also the function of our KRAEUTLER.

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IP is minus B input, except IP table is minus B output, except.

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And IPT is minus B for art accept.

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The second step is to flush all tables that have Ruelas.

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IP table is minus the filter, minus F IP tables, minus the net, minus F IP table, minus the main

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goal, minus F and IP table is minus the Harrar, the last table minus F.

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If the table has no goal, nothing happens.

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And lastly, delete the user defined chains, if any.

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This is optional and the needed only if there are user defined chains will talk about user defined chains

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in another lecture.

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IP table is minus X if you are using IP set to drop large collections of IP addresses like entire countries.

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You should also flush and destroy the six.

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There will be a dedicated section about IP said later in the course.

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OK, that's all.

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I am saving the script.

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Then I make it executable and run it.

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The IP table is Firehole has been cleared out and all traffic is permitted, by the way.

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This is also the default state of a Linux operating system.