<?xml version="1.0" encoding="UTF-8"?> <refentry> <refmeta> <refentrytitle>shorewall-exclusion</refentrytitle> <manvolnum>5</manvolnum> </refmeta> <refnamediv> <refname>exclusion</refname> <refpurpose>Exclude a set of hosts from a definition in a shorewall configuration file.</refpurpose> </refnamediv> <refsynopsisdiv> <cmdsynopsis> <arg choice="plain" rep="repeat"><option>!</option><replaceable>address-or-range</replaceable>[,<replaceable>address-or-range</replaceable>]</arg> </cmdsynopsis> </refsynopsisdiv> <refsect1> <title>Description</title> <para>Exclusion is used when you wish to exclude one or more addresses from a definition. An exclaimation point is followed by a comma-separated list of addresses. The addresses may be single host addresses (e.g., 192.168.1.4) or they may be network addresses in CIDR format (e.g., 192.168.1.0/24). If your kernel and iptables include iprange support, you may also specify ranges of ip addresses of the form <emphasis>lowaddress</emphasis>-<emphasis>highaddress</emphasis></para> <para>No embedded whitespace is allowed.</para> <para>Exclusion can appear after a list of addresses and/or address ranges. In that case, the final list of address is formed by taking the first list and then removing the addresses defined in the exclusion.</para> </refsect1> <refsect1> <title>Examples</title> <variablelist> <varlistentry> <term>Example 1 - All IPv4 addresses except 192.168.3.4</term> <listitem> <para>!192.168.3.4</para> </listitem> </varlistentry> <varlistentry> <term>Example 2 - All IPv4 addresses except the network 192.168.1.0/24 and the host 10.2.3.4</term> <listitem> <para>!192.168.1.0/24,10.1.3.4</para> </listitem> </varlistentry> <varlistentry> <term>Example 3 - All IPv4 addresses except the range 192.168.1.3-192.168.1.12 and the network 10.0.0.0/8</term> <listitem> <para>!192.168.1.3-192.168.1.12,10.0.0.0/8</para> </listitem> </varlistentry> <varlistentry> <term>Example 4 - The network 192.168.1.0/24 except hosts 192.168.1.3 and 192.168.1.9</term> <listitem> <para>192.168.1.0/24!192.168.1.3,192.168.1.9</para> </listitem> </varlistentry> </variablelist> </refsect1> <refsect1> <title>FILES</title> <para>/etc/shorewall/hosts</para> <para>/etc/shorewall/masq</para> <para>/etc/shorewall/rules</para> <para>/etc/shorewall/tcrules</para> </refsect1> <refsect1> <title>See ALSO</title> <para>shorewall(8), shorewall-accounting(5), shorewall-actions(5), shorewall-blacklist(5), shorewall-hosts(5), shorewall-interfaces(5), shorewall-ipsec(5), shorewall-maclist(5), shorewall-masq(5), shorewall-nat(5), shorewall-netmap(5), shorewall-params(5), shorewall-policy(5), shorewall-providers(5), shorewall-proxyarp(5), shorewall-route_rules(5), shorewall-routestopped(5), shorewall-rules(5), shorewall.conf(5), shorewall-tcclasses(5), shorewall-tcdevices(5), shorewall-tcrules(5), shorewall-tos(5), shorewall-tunnels(5), shorewall-zones(5)</para> </refsect1> </refentry>