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<?xml version="1.0" encoding="UTF-8"?>
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<refentry>
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<refmeta>
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<refentrytitle>shorewall-blacklist</refentrytitle>
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<refentrytitle>shorewall-</refentrytitle>
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<manvolnum>5</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>blacklist</refname>
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<refname>file</refname>
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<refpurpose>Shorewall Blacklist file</refpurpose>
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<refpurpose>Shorewall file</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<cmdsynopsis>
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<command>/etc/shorewall/blacklist</command>
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<command>/etc/shorewall/</command>
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</cmdsynopsis>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para>The blacklist file is used to perform static blacklisting. You can
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blacklist by source address (IP or MAC), or by application. </para>
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<para>The columns in the file are as follows.</para>
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<variablelist>
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<varlistentry>
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<term><emphasis role="bold">ADDRESS/SUBNET</emphasis></term>
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<term>COLUMN 1</term>
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<listitem>
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<para>Host address, network address, MAC address, IP address range
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(if your kernel and iptables contain iprange match support) or ipset
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name prefaced by "+" (i your kernel supports ipset match).</para>
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<para>MAC addresses must be prefixed with "~" and use "-" as a
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separator.</para>
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<para>Example: ~00-A0-C9-15-39-78</para>
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<para>A dash ("-") in this column means that any source address will
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match. This is useful if you want to blacklist a particular
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application.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><emphasis role="bold">PROTOCOL</emphasis> (Optional)</term>
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<listitem>
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<para>If specified, must be a protocol number or a protocol name
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from protocols(5).</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><emphasis role="bold">PORTS</emphasis> (Optional)</term>
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<listitem>
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<para>May only be specified if the protocol is TCP (6) or UDP (17).
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A comma-separated list of destination port numbers or service names
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from services(5).</para>
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<para></para>
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</listitem>
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</varlistentry>
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</variablelist>
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<para>When a packet arrives on an interface that has the <emphasis
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role="bold">blacklist</emphasis> option specified in
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shorewall-interfaces(5), its source IP address and MAC address is checked
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against this file and disposed of according to the <emphasis
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role="bold">BLACKLIST_DISPOSITION</emphasis> and <emphasis
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role="bold">BLACKLIST_LOGLEVEL</emphasis> variables in shorewall.conf(5).
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If <emphasis role="bold">PROTOCOL</emphasis> or <emphasis
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role="bold">PROTOCOL</emphasis> and <emphasis role="bold">PORTS</emphasis>
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are supplied, only packets matching the protocol (and one of the ports if
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<emphasis role="bold">PORTS</emphasis> supplied) are blocked.</para>
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</refsect1>
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<refsect1>
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<title>Example</title>
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<variablelist>
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<varlistentry>
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<term>Example 1:</term>
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<listitem>
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<para>To block DNS queries from address 192.0.2.126:</para>
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<programlisting> #ADDRESS/SUBNET PROTOCOL PORT
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192.0.2.126 udp 53</programlisting>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>Example 2:</term>
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<listitem>
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<para>To block some of the nuisance applicataion:</para>
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<programlisting> #ADDRESS/SUBNET PROTOCOL PORT
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- udp 1024:1033,1434
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- tcp 57,1433,1434,2401,2745,3127,3306,3410,4899,5554,6101,8081,9898</programlisting>
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</listitem>
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</varlistentry>
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</variablelist>
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<para></para>
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</refsect1>
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<refsect1>
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<title>FILES</title>
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<para>/etc/shorewall/blacklist</para>
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<para>/etc/shorewall/</para>
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</refsect1>
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<refsect1>
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<title>See ALSO</title>
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<para>shorewall(8), shorewall-accounting(5), shorewall-actions(5),
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shorewall-hosts(5), shorewall-interfaces(5), shorewall-ipsec(5),
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shorewall-maclist(5), shorewall-masq(5), shorewall-nat(5),
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shorewall-netmap(5), shorewall-params(5), shorewall-policy(5),
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shorewall-providers(5), shorewall-proxyarp(5), shorewall-route_routes(5),
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shorewall-routestopped(5), shorewall-rules(5), shorewall.conf(5),
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shorewall-tcclasses(5), shorewall-tcdevices(5), shorewall-tcrules(5),
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shorewall-tos(5), shorewall-tunnels(5), shorewall-zones(5)</para>
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shorewall-blacklist(5), shorewall-hosts(5), shorewall-interfaces(5),
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shorewall-ipsec(5), shorewall-maclist(5), shorewall-masq(5),
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shorewall-nat(5), shorewall-netmap(5), shorewall-params(5),
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shorewall-policy(5), shorewall-providers(5), shorewall-proxyarp(5),
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shorewall-route_routes(5), shorewall-routestopped(5), shorewall-rules(5),
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shorewall.conf(5), shorewall-tcclasses(5), shorewall-tcdevices(5),
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shorewall-tcrules(5), shorewall-tos(5), shorewall-tunnels(5),
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shorewall-zones(5)</para>
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</refsect1>
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</refentry>
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