mirror of
https://gitlab.com/shorewall/code.git
synced 2024-11-27 01:53:27 +01:00
116 lines
4.0 KiB
XML
116 lines
4.0 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
|
|
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
|
|
"http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd">
|
|
<refentry>
|
|
<refmeta>
|
|
<refentrytitle>shorewall6-exclusion</refentrytitle>
|
|
|
|
<manvolnum>5</manvolnum>
|
|
|
|
<refmiscinfo>Configuration Files</refmiscinfo>
|
|
</refmeta>
|
|
|
|
<refnamediv>
|
|
<refname>exclusion</refname>
|
|
|
|
<refpurpose>Exclude a set of hosts from a definition in a shorewall6
|
|
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>
|
|
|
|
<cmdsynopsis>
|
|
<arg choice="plain"
|
|
rep="repeat"><option>!</option><replaceable>zone-name</replaceable>[,<replaceable>zone-name</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 exclamation point is followed by a comma-separated
|
|
list of addresses. The addresses may be single host addresses (e.g.,
|
|
fe80::2a0:ccff:fedb:31c4) or they may be network addresses in CIDR format
|
|
(e.g., fe80::2a0:ccff:fedb:31c4/64). If your kernel and ip6tables include
|
|
iprange support, you may also specify ranges of ip addresses of the form
|
|
<emphasis>lowaddress</emphasis>-<emphasis>highaddress</emphasis></para>
|
|
|
|
<para>No embedded white-space 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>
|
|
|
|
<para>Beginning in Shorewall 4.4.13, the second form of exclusion is
|
|
allowed after <emphasis role="bold">all</emphasis> and <emphasis
|
|
role="bold">any</emphasis> in the SOURCE and DEST columns of
|
|
/etc/shorewall/rules. It allows you to omit arbitrary zones from the list
|
|
generated by those key words.</para>
|
|
|
|
<warning>
|
|
<para>If you omit a sub-zone and there is an explicit or explicit
|
|
CONTINUE policy, a connection to/from that zone can still be matched by
|
|
the rule generated for a parent zone.</para>
|
|
|
|
<para>For example:</para>
|
|
|
|
<blockquote>
|
|
<para>/etc/shorewall6/zones:</para>
|
|
|
|
<programlisting>#ZONE TYPE
|
|
z1 ip
|
|
z2:z1 ip
|
|
...</programlisting>
|
|
|
|
<para>/etc/shorewall6/policy:</para>
|
|
|
|
<programlisting>#SOURCE DEST POLICY
|
|
z1 net CONTINUE
|
|
z2 net REJECT</programlisting>
|
|
|
|
<para>/etc/shorewall6/rules:</para>
|
|
|
|
<programlisting>#ACTION SOURCE DEST PROTO DEST
|
|
# PORT(S)
|
|
ACCEPT all!z2 net tcp 22</programlisting>
|
|
|
|
<para>In this case, SSH connections from <emphasis
|
|
role="bold">z2</emphasis> to <emphasis role="bold">net</emphasis> will
|
|
be accepted by the generated <emphasis role="bold">z1</emphasis> to
|
|
net ACCEPT rule.</para>
|
|
</blockquote>
|
|
</warning>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>FILES</title>
|
|
|
|
<para>/etc/shorewall6/hosts</para>
|
|
|
|
<para>/etc/shorewall6/masq</para>
|
|
|
|
<para>/etc/shorewall6/rules</para>
|
|
|
|
<para>/etc/shorewall6/tcrules</para>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>See ALSO</title>
|
|
|
|
<para>shorewall6(8), shorewall6-accounting(5), shorewall6-actions(5),
|
|
shorewall6-blacklist(5), shorewall6-hosts(5), shorewall6-interfaces(5),
|
|
shorewall6-maclist(5), shorewall6-netmap(5),shorewall6-params(5),
|
|
shorewall6-policy(5), shorewall6-providers(5), shorewall6-rtrules(5),
|
|
shorewall6-routestopped(5), shorewall6-rules(5), shorewall6.conf(5),
|
|
shorewall6-secmarks(5), shorewall6-tcclasses(5), shorewall6-tcdevices(5),
|
|
shorewall6-mangle(5), shorewall6-tos(5), shorewall6-tunnels(5),
|
|
shorewall-zones(5)</para>
|
|
</refsect1>
|
|
</refentry>
|