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#!/usr/local/bin/php
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<?php
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/* $Id$ */
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/*
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	system_advanced.php
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        part of pfSense
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        Copyright (C) 2005 Scott Ullrich
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	originally part of m0n0wall (http://m0n0.ch/wall)
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	Copyright (C) 2003-2004 Manuel Kasper <mk@neon1.net>.
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	All rights reserved.
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	Redistribution and use in source and binary forms, with or without
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	modification, are permitted provided that the following conditions are met:
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	1. Redistributions of source code must retain the above copyright notice,
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	   this list of conditions and the following disclaimer.
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	2. Redistributions in binary form must reproduce the above copyright
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	   notice, this list of conditions and the following disclaimer in the
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	   documentation and/or other materials provided with the distribution.
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	THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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	INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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	AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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	AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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	OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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	SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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	INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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	CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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	ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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	POSSIBILITY OF SUCH DAMAGE.
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*/
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require("guiconfig.inc");
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$pconfig['disablefilter'] = $config['system']['disablefilter'];
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$pconfig['disableftpproxy'] = $config['system']['disableftpproxy'];
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$pconfig['rfc959workaround'] = $config['system']['rfc959workaround'];
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$pconfig['ipv6nat_enable'] = isset($config['diag']['ipv6nat']['enable']);
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$pconfig['ipv6nat_ipaddr'] = $config['diag']['ipv6nat']['ipaddr'];
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$pconfig['cert'] = base64_decode($config['system']['webgui']['certificate']);
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$pconfig['key'] = base64_decode($config['system']['webgui']['private-key']);
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$pconfig['disableconsolemenu'] = isset($config['system']['disableconsolemenu']);
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$pconfig['expanddiags'] = isset($config['system']['webgui']['expanddiags']);
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$pconfig['harddiskstandby'] = $config['system']['harddiskstandby'];
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$pconfig['noantilockout'] = isset($config['system']['webgui']['noantilockout']);
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$pconfig['tcpidletimeout'] = $config['filter']['tcpidletimeout'];
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$pconfig['schedulertype'] = $config['system']['schedulertype'];
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$pconfig['maximumstates'] = $config['system']['maximumstates'];
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$pconfig['disablerendevouz'] = $config['system']['disablerendevouz'];
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$pconfig['enableserial'] = $config['system']['enableserial'];
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$pconfig['disablefirmwarecheck'] = isset($config['system']['disablefirmwarecheck']);
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$pconfig['preferoldsa_enable'] = isset($config['ipsec']['preferoldsa']);
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if ($_POST) {
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	unset($input_errors);
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	$pconfig = $_POST;
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	/* input validation */
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	if ($_POST['ipv6nat_enable'] && !is_ipaddr($_POST['ipv6nat_ipaddr'])) {
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		$input_errors[] = "You must specify an IP address to NAT IPv6 packets.";
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	}
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	if ($_POST['maximumstates'] && !is_numericint($_POST['maximumstates'])) {
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		$input_errors[] = "The Firewall Maximum States value must be an integer.";
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	}
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	if ($_POST['tcpidletimeout'] && !is_numericint($_POST['tcpidletimeout'])) {
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		$input_errors[] = "The TCP idle timeout must be an integer.";
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	}
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	if (($_POST['cert'] && !$_POST['key']) || ($_POST['key'] && !$_POST['cert'])) {
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		$input_errors[] = "Certificate and key must always be specified together.";
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	} else if ($_POST['cert'] && $_POST['key']) {
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		if (!strstr($_POST['cert'], "BEGIN CERTIFICATE") || !strstr($_POST['cert'], "END CERTIFICATE"))
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			$input_errors[] = "This certificate does not appear to be valid.";
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		if (!strstr($_POST['key'], "BEGIN RSA PRIVATE KEY") || !strstr($_POST['key'], "END RSA PRIVATE KEY"))
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			$input_errors[] = "This key does not appear to be valid.";
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	if ($_POST['altfirmwareurl'])
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		if ($_POST['firmwareurl'] == "" || $_POST['firmwarename'] == "")
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		$input_errors[] = "You must specify a base URL and a filename for the alternate firmware.";
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	if ($_POST['altpkgconfigurl'])
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		if ($_POST['pkgconfig_base_url'] == "" || $_POST['pkgconfig_filename'] == "")
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		$input_errors[] = "You must specifiy and base URL and a filename before using an alternate pkg_config.xml.";
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	}
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	if (!$input_errors) {
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		if($_POST['disablefilter'] == "yes") {
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			$config['system']['disablefilter'] = "enabled";
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		} else {
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			unset($config['system']['disablefilter']);
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		}
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		if($_POST['disableftpproxy'] == "yes") {
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			$config['system']['disableftpproxy'] = "enabled";
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			unset($config['system']['rfc959workaround']);
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			system_start_ftp_helpers();
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		} else {
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			unset($config['system']['disableftpproxy']);
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			system_start_ftp_helpers();
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		}
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		if($_POST['rfc959workaround'] == "yes")
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			$config['system']['rfc959workaround'] = "enabled";
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		else
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			unset($config['system']['rfc959workaround']);
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		if($_POST['ipv6nat_enable'] == "yes") {
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			$config['diag']['ipv6nat']['enable'] = true;
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			$config['diag']['ipv6nat']['ipaddr'] = $_POST['ipv6nat_ipaddr'];
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		} else {
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			unset($config['diag']['ipv6nat']['enable']);
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			unset($config['diag']['ipv6nat']['ipaddr']);
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		}
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		$oldcert = $config['system']['webgui']['certificate'];
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		$oldkey = $config['system']['webgui']['private-key'];
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		$config['system']['webgui']['certificate'] = base64_encode($_POST['cert']);
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		$config['system']['webgui']['private-key'] = base64_encode($_POST['key']);
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		if($_POST['disableconsolemenu'] == "yes")
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			$config['system']['disableconsolemenu'] = true;
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		else
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			unset($config['system']['disableconsolemenu']);
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		if ($_POST['expanddiags'] == "yes")
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			$config['system']['webgui']['expanddiags'] = true;
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		else
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			unset($config['system']['webgui']['expanddiags']);
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		$config['system']['optimization'] = $_POST['optimization'];
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		if($_POST['disablefirmwarecheck'] == "yes")
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			$config['system']['disablefirmwarecheck'] = true;
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		else
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			unset($config['system']['disablefirmwarecheck']);
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		if ($_POST['enableserial'] == "yes")
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			$config['system']['enableserial'] = true;
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		else
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			unset($config['system']['enableserial']);
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		if($_POST['harddiskstandby'] == "yes") {
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			$config['system']['harddiskstandby'] = "yes";
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			system_set_harddisk_standby();
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		} else
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			unset($config['system']['harddiskstandby']);
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		if ($_POST['noantilockout'] == "yes")
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			$config['system']['webgui']['noantilockout'] = true;
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		else
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			unset($config['system']['webgui']['noantilockout']);
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		/* Firewall and ALTQ options */
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		$config['system']['schedulertype'] = $_POST['schedulertype'];
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		$config['system']['maximumstates'] = $_POST['maximumstates'];
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                $config['ipsec']['preferoldsa'] = $_POST['preferoldsa_enable'] ? true : false;
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		write_config();
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		if (($config['system']['webgui']['certificate'] != $oldcert)
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				|| ($config['system']['webgui']['private-key'] != $oldkey)) {
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			system_webgui_start();
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		}
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		$retval = 0;
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		if (!file_exists($d_sysrebootreqd_path)) {
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			config_lock();
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			$retval = filter_configure();
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			if(stristr($retval, "error") <> true)
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			    $savemsg = get_std_save_message($retval);
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			else
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			    $savemsg = $retval;
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			$retval |= interfaces_optional_configure();
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			config_unlock();
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		}
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		$etc_ttys  = return_filename_as_array("/etc/ttys");
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		$boot_loader_rc = return_filename_as_array("/boot/loader.rc");
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		conf_mount_rw();
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		$fout = fopen("/etc/ttys","w");
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		foreach($etc_ttys as $tty) {
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			if(stristr($tty,"ttyv0") <> true) {
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				fwrite($fout, $tty . "\n");				
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			}
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		}
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		if(isset($pconfig['enableserial']))
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			fwrite($fout, "ttyv0\t\"/usr/libexec/getty Pc\"\tcons25\t\ton\tsecure\n");
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		fclose($fout);		
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		$fout = fopen("/boot/loader.rc","w");
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		foreach($boot_loader_rc as $blrc) {
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			if(stristr($blrc,"comconsole") <> true) {
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				fwrite($fout, $blrc . "\n");				
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			}
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		}
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		if(isset($pconfig['enableserial']))
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			fwrite($fout, "set console=comconsole\n");
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		fclose($fout);
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		conf_mount_ro();
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	}
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}
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$pgtitle = "System: Advanced functions";
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include("head.inc");
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?>
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<script language="JavaScript">
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<!--
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function enable_change(enable_over) {
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	if (document.iform.ipv6nat_enable.checked || enable_over) {
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		document.iform.ipv6nat_ipaddr.disabled = 0;
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		document.iform.schedulertype.disabled = 0;
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	} else {
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		document.iform.ipv6nat_ipaddr.disabled = 1;
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	}
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}
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var descs=new Array(5);
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descs[0]="as the name says, it's the normal optimization algorithm";
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descs[1]="used for high latency links, such as satellite links.  Expires idle connections later than default";
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descs[2]="expires idle connections quicker. More efficient use of CPU and memory but can drop legitimate connections";
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descs[3]="tries to avoid dropping any legitimate connections at the expense of increased memory usage and CPU utilization.";
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function update_description(itemnum) {
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        document.forms[0].info.value=descs[itemnum];
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}
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function openwindow(url) {
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        var oWin = window.open(url,"pfSensePop","width=620,height=400,top=150,left=150");
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        if (oWin==null || typeof(oWin)=="undefined") {
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                return false;
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        } else {
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                return true;
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        }
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}
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// -->
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</script>
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<body link="#0000CC" vlink="#0000CC" alink="#0000CC">
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<form action="system_advanced.php" method="post" name="iform" id="iform">
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<?php include("fbegin.inc"); ?>
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      <p class="pgtitle">System: Advanced functions</p>
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            <?php if ($input_errors) print_input_errors($input_errors); ?>
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            <?php if ($savemsg) print_info_box($savemsg); ?>
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            <p><span class="vexpl"><span class="red"><strong>Note: </strong></span>
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	    the options on this page are intended for use by advanced users only.</span></p><br>
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              <table width="100%" border="0" cellpadding="6" cellspacing="0">
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		<?php if($g['platform'] == "pfSense" || $g['platform'] == "cdrom"): ?>
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                <tr>
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                  <td colspan="2" valign="top" class="listtopic">Enable Serial Console</td>
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                </tr>
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                <tr>
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                  <td width="22%" valign="top" class="vncell">&nbsp;</td>
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                  <td width="78%" class="vtable">
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                    <input name="enableserial" type="checkbox" id="enableserial" value="yes" <?php if (isset($pconfig['enableserial'])) echo "checked"; ?> onclick="enable_change(false)">
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                    <strong>This will enable the first serial port with 9600/8/N/1</strong>
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                    </td>
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                </tr>
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		<?php endif ?>
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                <tr>
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                  <td width="22%" valign="top">&nbsp;</td>
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                  <td width="78%">
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                    <input name="Submit" type="submit" class="formbtn" value="Save" onclick="enable_change(true)">
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                  </td>
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                </tr>
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                <tr>
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                  <td colspan="2" class="list" height="12"></td>
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                </tr>
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                <tr>
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                  <td colspan="2" valign="top" class="listtopic">IPv6 tunneling</td>
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                </tr>
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                <tr>
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                  <td width="22%" valign="top" class="vncell">&nbsp;</td>
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                  <td width="78%" class="vtable">
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                    <input name="ipv6nat_enable" type="checkbox" id="ipv6nat_enable" value="yes" <?php if ($pconfig['ipv6nat_enable']) echo "checked"; ?> onclick="enable_change(false)">
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                    <strong>NAT encapsulated IPv6 packets (IP protocol 41/RFC2893)
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                    to:</strong><br> <br> <input name="ipv6nat_ipaddr" type="text" class="formfld" id="ipv6nat_ipaddr" size="20" value="<?=htmlspecialchars($pconfig['ipv6nat_ipaddr']);?>">
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                    &nbsp;(IP address)<span class="vexpl"><br>
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                    Don't forget to add a firewall rule to permit IPv6 packets!</span></td>
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                </tr>
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                <tr>
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                  <td width="22%" valign="top">&nbsp;</td>
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                  <td width="78%">
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                    <input name="Submit" type="submit" class="formbtn" value="Save" onclick="enable_change(true)">
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                  </td>
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                </tr>
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                <tr>
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                  <td colspan="2" class="list" height="12"></td>
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                </tr>
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                <tr>
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                  <td colspan="2" valign="top" class="listtopic">webGUI SSL certificate/key</td>
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                </tr>
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                <tr>
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                  <td width="22%" valign="top" class="vncell">Certificate</td>
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                  <td width="78%" class="vtable">
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                    <textarea name="cert" cols="65" rows="7" id="cert" class="formpre"><?=htmlspecialchars($pconfig['cert']);?></textarea>
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                    <br>
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                    Paste a signed certificate in X.509 PEM format here. <a href="javascript:if(openwindow('system_advanced_create_certs.php') == false) alert('Popup blocker detected.  Action aborted.');" >Create</a> certificates automatically.</td>
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                </tr>
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                <tr>
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                  <td width="22%" valign="top" class="vncell">Key</td>
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                  <td width="78%" class="vtable">
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                    <textarea name="key" cols="65" rows="7" id="key" class="formpre"><?=htmlspecialchars($pconfig['key']);?></textarea>
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                    <br>
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                    Paste an RSA private key in PEM format here.</td>
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                </tr>
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                <tr>
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                  <td width="22%" valign="top">&nbsp;</td>
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                  <td width="78%">
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                    <input name="Submit" type="submit" class="formbtn" value="Save" onclick="enable_change(true)">
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                  </td>
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                </tr>
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                <tr>
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                  <td colspan="2" class="list" height="12"></td>
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                </tr>
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                <tr>
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                  <td colspan="2" valign="top" class="listtopic">Miscellaneous</td>
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                </tr>
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				<tr>
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                  <td width="22%" valign="top" class="vncell">Console menu </td>
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                  <td width="78%" class="vtable">
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                    <input name="disableconsolemenu" type="checkbox" id="disableconsolemenu" value="yes" <?php if ($pconfig['disableconsolemenu']) echo "checked"; ?>>
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                    <strong>Disable console menu</strong><span class="vexpl"><br>
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                    Changes to this option will take effect after a reboot.</span></td>
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                </tr>
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		<tr>
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                  <td valign="top" class="vncell">Firmware version check </td>
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                  <td class="vtable">
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                    <input name="disablefirmwarecheck" type="checkbox" id="disablefirmwarecheck" value="yes" <?php if ($pconfig['disablefirmwarecheck']) echo "checked"; ?>>
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                    <strong>Disable firmware version check</strong><span class="vexpl"><br>This will cause pfSense not to check for newer firmware versions when the <a href="system_firmware.php">System: Firmware</a> page is viewed.</span></td>
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		</tr>		
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		<tr>
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                  <td width="22%" valign="top" class="vncell">Hard disk standby time </td>
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                  <td width="78%" class="vtable">
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                    <select name="harddiskstandby" class="formfld">
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					<?php
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                        /* Values from ATA-2
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                           http://www.t13.org/project/d0948r3-ATA-2.pdf
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                           Page 66 */
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						$sbvals = explode(" ", "0.5,6 1,12 2,24 3,36 4,48 5,60 7.5,90 10,120 15,180 20,240 30,241 60,242");
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					?>
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                      <option value="" <?php if(!$pconfig['harddiskstandby']) echo('selected');?>>Always on</option>
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					<?php
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					foreach ($sbvals as $sbval):
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						list($min,$val) = explode(",", $sbval); ?>
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                      <option value="<?=$val;?>" <?php if($pconfig['harddiskstandby'] == $val) echo('selected');?>><?=$min;?> minutes</option>
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					<?php endforeach; ?>
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                    </select>
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                    <br>
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                    Puts the hard disk into standby mode when the selected amount of time after the last
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                    access has elapsed. <em>Do not set this for CF cards.</em></td>
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				</tr>
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				<tr>
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                  <td width="22%" valign="top" class="vncell">Navigation</td>
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                  <td width="78%" class="vtable">
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                    <input name="expanddiags" type="checkbox" id="expanddiags" value="yes" <?php if ($pconfig['expanddiags']) echo "checked"; ?>>
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                    <strong>Keep diagnostics in navigation expanded </strong></td>
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                </tr>
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		<tr>
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                  <td width="22%" valign="top" class="vncell">webGUI anti-lockout</td>
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                  <td width="78%" class="vtable">
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                    <input name="noantilockout" type="checkbox" id="noantilockout" value="yes" <?php if ($pconfig['noantilockout']) echo "checked"; ?>>
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                    <strong>Disable webGUI anti-lockout rule</strong><br>
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					By default, access to the webGUI on the LAN interface is always permitted, regardless of the user-defined filter rule set. Enable this feature to control webGUI access (make sure to have a filter rule in place that allows you in, or you will lock yourself out!).<br>
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					Hint:
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					the &quot;set LAN IP address&quot; option in the console menu  resets this setting as well.</td>
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                </tr>
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		<tr>
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                  <td width="22%" valign="top" class="vncell">IPsec SA preferral</td>
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                  <td width="78%" class="vtable">
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                    <input name="preferoldsa_enable" type="checkbox" id="preferoldsa_enable" value="yes" <?php if ($pconfig['preferoldsa_enable']) echo "checked"; ?>>
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                    <strong>Prefer old IPsec SAs</strong><br>By default, if several SAs match, the newest one is preferred if it's at least 30 seconds old.Select this option to always prefer old SAs over new ones.
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                  </td>
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                </tr>		
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                <tr>
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                  <td width="22%" valign="top">&nbsp;</td>
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                  <td width="78%">
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                    <input name="Submit" type="submit" class="formbtn" value="Save" onclick="enable_change(true)">
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                  </td>
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                </tr>
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                <tr>
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                  <td colspan="2" class="list" height="12"></td>
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                </tr>
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                <tr>
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                  <td colspan="2" valign="top" class="listtopic">Traffic Shaper and Firewall Advanced</td>
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                </tr>
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                <tr>
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                  <td width="22%" valign="top" class="vncell">FTP Helper</td>
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                  <td width="78%" class="vtable">
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                    <input name="disableftpproxy" type="checkbox" id="disableftpproxy" value="yes" <?php if (isset($config['system']['disableftpproxy'])) echo "checked"; ?> onclick="enable_change(false)">
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                    <strong class="vexpl">Disable the userland FTP-Proxy application</strong><br>
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                </tr>
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                <tr>
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                  <td width="22%" valign="top" class="vncell">FTP RFC 959 data port violation workaround</td>
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                  <td width="78%" class="vtable">
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                    <input name="rfc959workaround" type="checkbox" id="rfc959workaround" value="yes" <?php if (isset($config['system']['rfc959workaround'])) echo "checked"; ?> onclick="enable_change(false)">
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                    <strong class="vexpl">Workaround for sites that violate RFC 959 which specifies that the data connection be sourced from the command port - 1 (typically port 20).  This workaround doesn't expose you to any extra risk as the firewall will still only allow connections on a port that the ftp-proxy is listening on.</strong><br>
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                </tr>
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		<tr>
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		  <td width="22%" valign="top" class="vncell">Traffic Shaper Scheduler</td>
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		  <td width="78%" class="vtable">
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		    <select id="schedulertype" name="schedulertype" <?= $style ?>>
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			    <option value="priq"<?php if($pconfig['schedulertype'] == 'priq') echo " SELECTED"; ?>>Priority based queueing</option>
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			    <option value="cbq"<?php if($pconfig['schedulertype'] == 'cbq') echo " SELECTED"; ?>>Class based queueing</option>
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			    <option value="hfsc"<?php if($pconfig['schedulertype'] == 'hfsc') echo " SELECTED"; ?>>Hierarchical Fair Service Curve queueing</option>
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		    </select>
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		    <br> <span class="vexpl"><b>Select which type of queueing you would like to use</b>
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		  <?php if (is_array($config['shaper']['queue']) > 0): ?>
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			<script language="javascript">
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			document.iform.schedulertype.disabled = 1;
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			</script>
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			<br>
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			NOTE: This option is disabled since there are queues defined.
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		  <?php endif; ?>
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		    </span></td>
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		</tr>
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		<tr>
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                  <td width="22%" valign="top" class="vncell">Firewall Optimization Options</td>
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                  <td width="78%" class="vtable">
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			<select onChange="update_description(this.selectedIndex);" name="optimization" id="optimization">
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			<option value="normal"<?php if($config['system']['optimization']=="normal") echo " SELECTED"; ?>>normal</option>
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			<option value="high-latency"<?php if($config['system']['optimization']=="high-latency") echo " SELECTED"; ?>>high-latency</option>
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			<option value="aggressive"<?php if($config['system']['optimization']=="aggressive") echo " SELECTED"; ?>>aggressive</option>
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			<option value="conservative"<?php if($config['system']['optimization']=="conservative") echo " SELECTED"; ?>>conservative</option>
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			</select>
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			<textarea cols="60" rows="2" id="info" name="info"style="border:1px dashed #000066; background-color: #ffffff; color: #000000; font-size: 8pt;">
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			</textarea>
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			<script language="javascript">
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			update_description(document.forms[0].optimization.selectedIndex);
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			</script>
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			<br><span class="vexpl"><b>Select which type of state table optimization your would like to use</b></td>
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                </tr>
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                <tr>
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                  <td width="22%" valign="top" class="vncell">Disable Firewall</td>
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                  <td width="78%" class="vtable">
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                    <input name="disablefilter" type="checkbox" id="disablefilter" value="yes" <?php if (isset($config['system']['disablefilter'])) echo "checked"; ?> onclick="enable_change(false)">
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                    <strong>Disable the firewalls filter altogether.</strong><br>
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                    <span class="vexpl">Note:  This basically converts pfSense into a routing only platform!</span></td>
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                </tr>
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                <tr>
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                  <td width="22%" valign="top" class="vncell">Firewall Maximum States</td>
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                  <td width="78%" class="vtable">
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                    <input name="maximumstates" type="input" id="maximumstates" value="<?php echo $pconfig['maximumstates']; ?>" onclick="enable_change(false)"><br>
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                    <strong>Maximum number of connections to hold in the firewall state table.</strong><br>
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                    <span class="vexpl">Note:  Leave this blank for the default of 10000</span></td>
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                </tr>
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                <tr>
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                  <td width="22%" valign="top">&nbsp;</td>
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                  <td width="78%">
462
                    <input name="Submit" type="submit" class="formbtn" value="Save" onclick="enable_change(true)">
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                  </td>
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                </tr>
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                <tr>
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                  <td colspan="2" class="list" height="12"></td>
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                </tr>
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              </table>
475
</form>
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            <script language="JavaScript">
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<!--
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enable_change(false);
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//enable_altfirmwareurl(false);
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//enable_altpkgconfigurl(false);
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//-->
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</script>
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<?php include("fend.inc"); ?>
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</body>
485
</html>