forked from extern/shorewall_code
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11 Commits
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5c18c6c3d6 | ||
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746a363d41 | ||
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865078f925 |
1
Shorewall-core/configure
vendored
1
Shorewall-core/configure
vendored
@@ -181,6 +181,7 @@ for on in \
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SYSTEMD \
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SYSCONFFILE \
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SYSCONFDIR \
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SPARSE \
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ANNOTATED \
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VARDIR
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do
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@@ -140,6 +140,7 @@ for ( qw/ HOST
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SYSTEMD
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SYSCONFFILE
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SYSCONFDIR
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SPARSE
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ANNOTATED
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VARDIR / ) {
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@@ -1030,7 +1030,9 @@ sub normalize_hex( $ ) {
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# Return the argument expressed in Hex
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#
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sub in_hex( $ ) {
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sprintf '0x%x', $_[0];
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my $value = $_[0];
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$value =~ /^0x/ ? $value : sprintf '0x%x', $_[0];
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}
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sub in_hex2( $ ) {
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@@ -1661,7 +1663,7 @@ sub process_conditional( $$$ ) {
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fatal_error "Invalid IF variable ($rest)" unless ($rest =~ s/^\$// || $rest =~ /^__/ ) && $rest =~ /^\w+$/;
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push @ifstack, [ 'IF', $lastomit, $omitting, $linenumber ];
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push @ifstack, [ 'IF', $omitting, $omitting, $linenumber ];
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if ( $rest eq '__IPV6' ) {
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$omitting = $family == F_IPV4;
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@@ -632,12 +632,13 @@ CEOF
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setup_interface_proc( $interface );
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if ( $mark ne '-' ) {
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my $hexmark = in_hex( $mark );
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my $mask = have_capability 'FWMARK_RT_MASK' ? '/' . in_hex $globals{PROVIDER_MASK} : '';
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emit ( "qt \$IP -$family rule del fwmark ${mark}${mask}" ) if $config{DELETE_THEN_ADD};
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emit ( "qt \$IP -$family rule del fwmark ${hexmark}${mask}" ) if $config{DELETE_THEN_ADD};
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emit ( "run_ip rule add fwmark ${mark}${mask} pref $pref table $number",
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"echo \"qt \$IP -$family rule del fwmark ${mark}${mask}\" >> \${VARDIR}/undo_${table}_routing"
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emit ( "run_ip rule add fwmark ${hexmark}${mask} pref $pref table $number",
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"echo \"qt \$IP -$family rule del fwmark ${hexmark}${mask}\" >> \${VARDIR}/undo_${table}_routing"
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);
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}
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@@ -761,7 +762,7 @@ CEOF
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if ( $gateway ) {
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emit qq(add_gateway "via $gateway dev $physical $realm" ) . $tbl;
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} else {
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emit qq(add_gateway "nexthop dev $physical $realm" ) . $tbl;
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emit qq(add_gateway "dev $physical $realm" ) . $tbl;
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}
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}
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} else {
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@@ -863,7 +864,8 @@ CEOF
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"qt \$TC qdisc del dev $physical ingress\n" ) if $tcdevices->{$interface};
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}
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emit( "progress_message2 \" Provider $table ($number) stopped\"" );
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emit( "echo 1 > \${VARDIR}/${physical}.status",
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"progress_message2 \" Provider $table ($number) stopped\"" );
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pop_indent;
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@@ -1116,6 +1118,10 @@ sub finish_providers() {
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'# We don\'t have any \'balance\' providers so we restore any default route that we\'ve saved',
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'#',
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"restore_default_route $config{USE_DEFAULT_RT}" ,
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'#',
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'# And delete any routes in the \'balance\' table',
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'#',
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"qt \$IP -$family route del default table " . BALANCE_TABLE,
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'' );
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}
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@@ -176,8 +176,28 @@ interface_is_up() {
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#
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interface_is_usable() # $1 = interface
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{
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[ "$1" = lo ] && return 0
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interface_is_up $1 && [ "$(find_first_interface_address_if_any $1)" != :: ] && run_isusable_exit $1
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local status;
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status=0
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if [ "$1" != lo ]; then
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if [ $g_family -eq 4 ]; then
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if interface_is_up $1 && [ "$(find_first_interface_address_if_any $1)" != 0.0.0.0 ]; then
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[ "$COMMAND" = enable ] || run_isusable_exit $1
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status=$?
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else
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status=1
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fi
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else
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if interface_is_up $1 && [ "$(find_first_interface_address_if_any $1)" ]; then
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[ "$COMMAND" = enable ] || run_isusable_exit $1
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status=$?
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else
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status=1
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fi
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fi
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fi
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return $status
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}
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#
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@@ -407,39 +407,6 @@ SAME $FW 0.0.0.0/0 tcp 80,443</programlisting>
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classes will have a value > 256.</para>
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</listitem>
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<listitem>
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<para><emphasis
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role="bold">TPROXY</emphasis>(<replaceable>mark</replaceable>[/<replaceable>mask</replaceable>][,[<replaceable>port</replaceable>][,[<replaceable>address</replaceable>]]])</para>
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<para>Transparently redirects a packet without altering the IP
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header. Requires a local provider to be defined in <ulink
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url="shorewall-providers.html">shorewall-providers</ulink>(5).</para>
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<para>There are three parameters to TPROXY - only the first
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(mark) is required:</para>
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<itemizedlist>
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<listitem>
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<para><replaceable>mark</replaceable> - the MARK value
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corresponding to the local provider in <ulink
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url="shorewall-providers.html">shorewall-providers</ulink>(5).</para>
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</listitem>
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<listitem>
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<para><replaceable>port</replaceable> - the port on which
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the proxy server is listening. If omitted, the original
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destination port.</para>
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</listitem>
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<listitem>
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<para><replaceable>address</replaceable> - a local (to the
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firewall) IP address on which the proxy server is listening.
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If omitted, the IP address of the interface on which the
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request arrives.</para>
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</listitem>
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</itemizedlist>
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</listitem>
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<listitem>
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<para><emphasis role="bold">TTL</emphasis>([<emphasis
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role="bold">-</emphasis>|<emphasis
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@@ -304,39 +304,6 @@ SAME $FW 0.0.0.0/0 tcp 80,443</programlisting>
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simply include COMMENT on a line by itself.</para>
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</listitem>
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<listitem>
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<para><emphasis
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role="bold">TPROXY</emphasis>(<replaceable>mark</replaceable>[/<replaceable>mask</replaceable>][,[<replaceable>port</replaceable>][,[<replaceable>address</replaceable>]]])</para>
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<para>Transparently redirects a packet without altering the IP
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header. Requires a local provider to be defined in <ulink
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url="shorewall6-providers.html">shorewall6-providers</ulink>(5).</para>
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<para>There are three parameters to TPROXY - only the first
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(mark) is required:</para>
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<itemizedlist>
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<listitem>
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<para><replaceable>mark</replaceable> - the MARK value
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corresponding to the local provider in <ulink
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url="shorewall6-providers.html">shorewall6-providers</ulink>(5).</para>
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</listitem>
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<listitem>
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<para><replaceable>port</replaceable> - the port on which
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the proxy server is listening. If omitted, the original
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destination port.</para>
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</listitem>
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<listitem>
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<para><replaceable>address</replaceable> - a local (to the
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firewall) IP address on which the proxy server is listening.
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If omitted, the IP address of the interface on which the
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request arrives.</para>
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</listitem>
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</itemizedlist>
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</listitem>
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<listitem>
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<para><emphasis role="bold">HL</emphasis>([<emphasis
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role="bold">-</emphasis>|<emphasis
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@@ -308,40 +308,4 @@ ACCEPT loc $FW tcp 8080
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ACCEPT $FW net tcp 80,443</programlisting></para>
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</example>
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</section>
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<section id="TPROXY">
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<title>Transparent with TPROXY</title>
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<para>Shorewall 4.4.7 contains support for TPROXY. TPROXY differs from
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REDIRECT in that it does not modify the IP header. Because the IP header
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stays intact, TPROXY requires policy routing to direct the packets to the
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proxy server running on the firewall. This approach requires TPROXY
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support in your kernel and iptables and Squid 3. See <ulink
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url="http://wiki.squid-cache.org/Features/Tproxy4">http://wiki.squid-cache.org/Features/Tproxy4</ulink>.</para>
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<para>The following configuration works with Squid running on the firewall
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itself (assume that Squid is listening on port 3128).</para>
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<para><filename>/etc/shorewall/interfaces:</filename></para>
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<programlisting>#ZONE INTERFACE BROADCAST OPTIONS
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- lo - -</programlisting>
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<para><filename>/etc/shorewall/providers</filename>:</para>
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<programlisting>#NAME NUMBER MARK DUPLICATE INTERFACE GATEWAY OPTIONS COPY
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Tproxy 1 1 - lo - local</programlisting>
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<para><filename>/etc/shorewall/tcrules</filename> (assume loc interface is
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eth1):</para>
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<programlisting>MARK SOURCE DEST PROTO PORT(S)
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TPROXY(1,3128) eth1 0.0.0.0/0 tcp 80</programlisting>
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<para>/etc/shorewall/rules:</para>
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<programlisting>#ACTION SOURCE DEST PROTO DEST PORT(S)
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ACCEPT loc $FW tcp 80
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ACCEPT $FW net tcp 80</programlisting>
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</section>
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</article>
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Reference in New Issue
Block a user