Difference between revisions of "Firewall"

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(Created page with "Different ways to handle <code>iptables</code>. == Using <code>iptable-persistent</code> on Debian == '''Note:''' In use on <code>vrijdagmiddagborrel</code> It's basically...")
 
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Different ways to handle <code>iptables</code>.
 
Different ways to handle <code>iptables</code>.
  
== Using <code>iptable-persistent</code> on Debian ==
+
== Using <code>iptables-persistent</code> on Debian ==
  
'''Note:''' In use on <code>vrijdagmiddagborrel</code>
+
'''Note:''' In use on <code>vrijdagmiddagborrel</code>.
  
It's basically a set of plugins for <code>netfilter-persisten</code>, which itself is a loader for netfilter configuration.
+
It's basically a set of <code>iptables</code> plugins for <code>netfilter-persistent</code>, which itself is a loader for different netfilter configuration. Once installed, it will take care of restoring rules at boot time, and through a small helper, can be used to reload/update/save rules on the fly.
  
 
=== Installation and config ===
 
=== Installation and config ===
* installation
+
* Installation:
apt install iptables-persistent netfilter-persistent
+
apt install iptables-persistent netfilter-persistent
 +
* Add/change iptables rules located at <code>/etc/iptables/rules.v4</code> and <code>/etc/iptables/rules.v6</code>
 +
 
 +
=== Usage ===
 +
* Apply new rules after changes made to rules.v* files and check result
 +
netfilter-persistent reload
 +
iptables -L
 +
 
 +
 
 +
== <code>iptables</code> oneliners ==
 +
* list all rules from all chains
 +
iptables -L

Revision as of 17:59, 16 December 2019

Different ways to handle iptables.

Using iptables-persistent on Debian

Note: In use on vrijdagmiddagborrel.

It's basically a set of iptables plugins for netfilter-persistent, which itself is a loader for different netfilter configuration. Once installed, it will take care of restoring rules at boot time, and through a small helper, can be used to reload/update/save rules on the fly.

Installation and config

  • Installation:
apt install iptables-persistent netfilter-persistent
  • Add/change iptables rules located at /etc/iptables/rules.v4 and /etc/iptables/rules.v6

Usage

  • Apply new rules after changes made to rules.v* files and check result
netfilter-persistent reload
iptables -L


iptables oneliners

  • list all rules from all chains
iptables -L