. Copyright (C) 2008-2009 Robert Zelaya. Copyright (C) 2011 Ermal Luci All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ require_once("guiconfig.inc"); require_once("/usr/local/pkg/snort/snort_gui.inc"); require_once("/usr/local/pkg/snort/snort.inc"); global $g; if (!is_array($config['installedpackages']['snortglobal']['rule'])) $config['installedpackages']['snortglobal']['rule'] = array(); $a_nat = &$config['installedpackages']['snortglobal']['rule']; $id = $_GET['id']; if (isset($_POST['id'])) $id = $_POST['id']; if (is_null($id)) { header("Location: /snort/snort_interfaces.php"); exit; } if (isset($_GET['dup'])) { $id = $_GET['dup']; $after = $_GET['dup']; } /* always have a limit of (65535) numbers only or snort will not start do to id limits */ /* TODO: When inline gets added make the uuid the port number lisstening */ $pconfig = array(); /* gen uuid for each iface !inportant */ if (empty($config['installedpackages']['snortglobal']['rule'][$id]['uuid'])) { //$snort_uuid = gen_snort_uuid(strrev(uniqid(true))); $snort_uuid = 0; while ($snort_uuid > 65535 || $snort_uuid == 0) { $snort_uuid = mt_rand(1, 65535); $pconfig['uuid'] = $snort_uuid; } } else { $snort_uuid = $a_nat[$id]['uuid']; $pconfig['uuid'] = $snort_uuid; } if (isset($id) && $a_nat[$id]) { /* old options */ $pconfig['def_ssl_ports_ignore'] = $a_nat[$id]['def_ssl_ports_ignore']; $pconfig['flow_depth'] = $a_nat[$id]['flow_depth']; $pconfig['max_queued_bytes'] = $a_nat[$id]['max_queued_bytes']; $pconfig['max_queued_segs'] = $a_nat[$id]['max_queued_segs']; $pconfig['perform_stat'] = $a_nat[$id]['perform_stat']; $pconfig['http_inspect'] = $a_nat[$id]['http_inspect']; $pconfig['other_preprocs'] = $a_nat[$id]['other_preprocs']; $pconfig['ftp_preprocessor'] = $a_nat[$id]['ftp_preprocessor']; $pconfig['smtp_preprocessor'] = $a_nat[$id]['smtp_preprocessor']; $pconfig['sf_portscan'] = $a_nat[$id]['sf_portscan']; $pconfig['dce_rpc_2'] = $a_nat[$id]['dce_rpc_2']; $pconfig['dns_preprocessor'] = $a_nat[$id]['dns_preprocessor']; $pconfig['def_dns_servers'] = $a_nat[$id]['def_dns_servers']; $pconfig['def_dns_ports'] = $a_nat[$id]['def_dns_ports']; $pconfig['def_smtp_servers'] = $a_nat[$id]['def_smtp_servers']; $pconfig['def_smtp_ports'] = $a_nat[$id]['def_smtp_ports']; $pconfig['def_mail_ports'] = $a_nat[$id]['def_mail_ports']; $pconfig['def_http_servers'] = $a_nat[$id]['def_http_servers']; $pconfig['def_www_servers'] = $a_nat[$id]['def_www_servers']; $pconfig['def_http_ports'] = $a_nat[$id]['def_http_ports']; $pconfig['def_sql_servers'] = $a_nat[$id]['def_sql_servers']; $pconfig['def_oracle_ports'] = $a_nat[$id]['def_oracle_ports']; $pconfig['def_mssql_ports'] = $a_nat[$id]['def_mssql_ports']; $pconfig['def_telnet_servers'] = $a_nat[$id]['def_telnet_servers']; $pconfig['def_telnet_ports'] = $a_nat[$id]['def_telnet_ports']; $pconfig['def_snmp_servers'] = $a_nat[$id]['def_snmp_servers']; $pconfig['def_snmp_ports'] = $a_nat[$id]['def_snmp_ports']; $pconfig['def_ftp_servers'] = $a_nat[$id]['def_ftp_servers']; $pconfig['def_ftp_ports'] = $a_nat[$id]['def_ftp_ports']; $pconfig['def_ssh_servers'] = $a_nat[$id]['def_ssh_servers']; $pconfig['def_ssh_ports'] = $a_nat[$id]['def_ssh_ports']; $pconfig['def_pop_servers'] = $a_nat[$id]['def_pop_servers']; $pconfig['def_pop2_ports'] = $a_nat[$id]['def_pop2_ports']; $pconfig['def_pop3_ports'] = $a_nat[$id]['def_pop3_ports']; $pconfig['def_imap_servers'] = $a_nat[$id]['def_imap_servers']; $pconfig['def_imap_ports'] = $a_nat[$id]['def_imap_ports']; $pconfig['def_sip_proxy_ip'] = $a_nat[$id]['def_sip_proxy_ip']; $pconfig['def_sip_servers'] = $a_nat[$id]['def_sip_servers']; $pconfig['def_sip_ports'] = $a_nat[$id]['def_sip_ports']; $pconfig['def_sip_proxy_ports'] = $a_nat[$id]['def_sip_proxy_ports']; $pconfig['def_auth_ports'] = $a_nat[$id]['def_auth_ports']; $pconfig['def_finger_ports'] = $a_nat[$id]['def_finger_ports']; $pconfig['def_irc_ports'] = $a_nat[$id]['def_irc_ports']; $pconfig['def_nntp_ports'] = $a_nat[$id]['def_nntp_ports']; $pconfig['def_rlogin_ports'] = $a_nat[$id]['def_rlogin_ports']; $pconfig['def_rsh_ports'] = $a_nat[$id]['def_rsh_ports']; $pconfig['def_ssl_ports'] = $a_nat[$id]['def_ssl_ports']; $pconfig['barnyard_enable'] = $a_nat[$id]['barnyard_enable']; $pconfig['barnyard_mysql'] = $a_nat[$id]['barnyard_mysql']; $pconfig['enable'] = $a_nat[$id]['enable']; $pconfig['interface'] = $a_nat[$id]['interface']; $pconfig['descr'] = $a_nat[$id]['descr']; $pconfig['performance'] = $a_nat[$id]['performance']; $pconfig['blockoffenders7'] = $a_nat[$id]['blockoffenders7']; $pconfig['blockoffenderskill'] = $a_nat[$id]['blockoffenderskill']; $pconfig['blockoffendersip'] = $a_nat[$id]['blockoffendersip']; $pconfig['whitelistname'] = $a_nat[$id]['whitelistname']; $pconfig['homelistname'] = $a_nat[$id]['homelistname']; $pconfig['externallistname'] = $a_nat[$id]['externallistname']; $pconfig['suppresslistname'] = $a_nat[$id]['suppresslistname']; $pconfig['snortalertlogtype'] = $a_nat[$id]['snortalertlogtype']; $pconfig['alertsystemlog'] = $a_nat[$id]['alertsystemlog']; $pconfig['tcpdumplog'] = $a_nat[$id]['tcpdumplog']; $pconfig['snortunifiedlog'] = $a_nat[$id]['snortunifiedlog']; $pconfig['configpassthru'] = base64_decode($a_nat[$id]['configpassthru']); $pconfig['barnconfigpassthru'] = $a_nat[$id]['barnconfigpassthru']; $pconfig['rulesets'] = $a_nat[$id]['rulesets']; $pconfig['rule_sid_off'] = $a_nat[$id]['rule_sid_off']; $pconfig['rule_sid_on'] = $a_nat[$id]['rule_sid_on']; if (!$pconfig['interface']) $pconfig['interface'] = "wan"; } else $pconfig['interface'] = "wan"; /* convert fake interfaces to real */ $if_real = snort_get_real_interface($pconfig['interface']); if (isset($_GET['dup'])) unset($id); /* alert file */ $d_snortconfdirty_path = "/var/run/snort_conf_{$snort_uuid}_{$if_real}.dirty"; if ($_POST["Submit"]) { if ($_POST['descr'] == '' && $pconfig['descr'] == '') { $input_errors[] = "Please enter a description for your reference."; } if ($id == "" && $config['installedpackages']['snortglobal']['rule'][0]['interface'] != "") { $rule_array = $config['installedpackages']['snortglobal']['rule']; foreach ($config['installedpackages']['snortglobal']['rule'] as $value) { $result_lan = $value['interface']; $if_real = snort_get_real_interface($result_lan); if ($_POST['interface'] == $result_lan) $input_errors[] = "Interface $result_lan is in use. Please select another interface."; } } /* XXX: Void code * check for overlaps foreach ($a_nat as $natent) { if (isset($id) && ($a_nat[$id]) && ($a_nat[$id] === $natent)) continue; if ($natent['interface'] != $_POST['interface']) continue; } */ /* if no errors write to conf */ if (!$input_errors) { $natent = array(); /* write to conf for 1st time or rewrite the answer */ if ($_POST['interface']) $natent['interface'] = $_POST['interface']; /* if post write to conf or rewite the answer */ $natent['enable'] = $_POST['enable'] ? 'on' : 'off'; $natent['uuid'] = $pconfig['uuid']; $natent['descr'] = $_POST['descr'] ? $_POST['descr'] : $pconfig['descr']; $natent['performance'] = $_POST['performance'] ? $_POST['performance'] : $pconfig['performance']; /* if post = on use on off or rewrite the conf */ if ($_POST['blockoffenders7'] == "on") $natent['blockoffenders7'] = 'on'; else $natent['blockoffenders7'] = 'off'; if ($_POST['blockoffenderskill'] == "on") $natent['blockoffenderskill'] = 'on'; if ($_POST['blockoffendersip']) $natent['blockoffendersip'] = $_POST['blockoffendersip']; $natent['whitelistname'] = $_POST['whitelistname'] ? $_POST['whitelistname'] : $pconfig['whitelistname']; $natent['homelistname'] = $_POST['homelistname'] ? $_POST['homelistname'] : $pconfig['homelistname']; $natent['externallistname'] = $_POST['externallistname'] ? $_POST['externallistname'] : $pconfig['externallistname']; $natent['suppresslistname'] = $_POST['suppresslistname'] ? $_POST['suppresslistname'] : $pconfig['suppresslistname']; $natent['snortalertlogtype'] = $_POST['snortalertlogtype'] ? $_POST['snortalertlogtype'] : $pconfig['snortalertlogtype']; if ($_POST['alertsystemlog'] == "on") { $natent['alertsystemlog'] = 'on'; }else{ $natent['alertsystemlog'] = 'off'; } if ($_POST['enable']) { $natent['enable'] = 'on'; } else unset($natent['enable']); if ($_POST['tcpdumplog'] == "on") { $natent['tcpdumplog'] = 'on'; }else{ $natent['tcpdumplog'] = 'off'; } if ($_POST['snortunifiedlog'] == "on") { $natent['snortunifiedlog'] = 'on'; }else{ $natent['snortunifiedlog'] = 'off'; } $natent['configpassthru'] = $_POST['configpassthru'] ? base64_encode($_POST['configpassthru']) : $pconfig['configpassthru']; /* if optiion = 0 then the old descr way will not work */ /* rewrite the options that are not in post */ /* make shure values are set befor repost or conf.xml will be broken */ if ($pconfig['def_ssl_ports_ignore'] != "") { $natent['def_ssl_ports_ignore'] = $pconfig['def_ssl_ports_ignore']; } if ($pconfig['flow_depth'] != "") { $natent['flow_depth'] = $pconfig['flow_depth']; } if ($pconfig['max_queued_bytes'] != "") { $natent['max_queued_bytes'] = $pconfig['max_queued_bytes']; } if ($pconfig['max_queued_segs'] != "") { $natent['max_queued_segs'] = $pconfig['max_queued_segs']; } if ($pconfig['perform_stat'] != "") { $natent['perform_stat'] = $pconfig['perform_stat']; } if ($pconfig['http_inspect'] != "") { $natent['http_inspect'] = $pconfig['http_inspect']; } if ($pconfig['other_preprocs'] != "") { $natent['other_preprocs'] = $pconfig['other_preprocs']; } if ($pconfig['ftp_preprocessor'] != "") { $natent['ftp_preprocessor'] = $pconfig['ftp_preprocessor']; } if ($pconfig['smtp_preprocessor'] != "") { $natent['smtp_preprocessor'] = $pconfig['smtp_preprocessor']; } if ($pconfig['sf_portscan'] != "") { $natent['sf_portscan'] = $pconfig['sf_portscan']; } if ($pconfig['dce_rpc_2'] != "") { $natent['dce_rpc_2'] = $pconfig['dce_rpc_2']; } if ($pconfig['dns_preprocessor'] != "") { $natent['dns_preprocessor'] = $pconfig['dns_preprocessor']; } if ($pconfig['def_dns_servers'] != "") { $natent['def_dns_servers'] = $pconfig['def_dns_servers']; } if ($pconfig['def_dns_ports'] != "") { $natent['def_dns_ports'] = $pconfig['def_dns_ports']; } if ($pconfig['def_smtp_servers'] != "") { $natent['def_smtp_servers'] = $pconfig['def_smtp_servers']; } if ($pconfig['def_smtp_ports'] != "") { $natent['def_smtp_ports'] = $pconfig['def_smtp_ports']; } if ($pconfig['def_mail_ports'] != "") { $natent['def_mail_ports'] = $pconfig['def_mail_ports']; } if ($pconfig['def_http_servers'] != "") { $natent['def_http_servers'] = $pconfig['def_http_servers']; } if ($pconfig['def_www_servers'] != "") { $natent['def_www_servers'] = $pconfig['def_www_servers']; } if ($pconfig['def_http_ports'] != "") { $natent['def_http_ports'] = $pconfig['def_http_ports']; } if ($pconfig['def_sql_servers'] != "") { $natent['def_sql_servers'] = $pconfig['def_sql_servers']; } if ($pconfig['def_oracle_ports'] != "") { $natent['def_oracle_ports'] = $pconfig['def_oracle_ports']; } if ($pconfig['def_mssql_ports'] != "") { $natent['def_mssql_ports'] = $pconfig['def_mssql_ports']; } if ($pconfig['def_telnet_servers'] != "") { $natent['def_telnet_servers'] = $pconfig['def_telnet_servers']; } if ($pconfig['def_telnet_ports'] != "") { $natent['def_telnet_ports'] = $pconfig['def_telnet_ports']; } if ($pconfig['def_snmp_servers'] != "") { $natent['def_snmp_servers'] = $pconfig['def_snmp_servers']; } if ($pconfig['def_snmp_ports'] != "") { $natent['def_snmp_ports'] = $pconfig['def_snmp_ports']; } if ($pconfig['def_ftp_servers'] != "") { $natent['def_ftp_servers'] = $pconfig['def_ftp_servers']; } if ($pconfig['def_ftp_ports'] != "") { $natent['def_ftp_ports'] = $pconfig['def_ftp_ports']; } if ($pconfig['def_ssh_servers'] != "") { $natent['def_ssh_servers'] = $pconfig['def_ssh_servers']; } if ($pconfig['def_ssh_ports'] != "") { $natent['def_ssh_ports'] = $pconfig['def_ssh_ports']; } if ($pconfig['def_pop_servers'] != "") { $natent['def_pop_servers'] = $pconfig['def_pop_servers']; } if ($pconfig['def_pop2_ports'] != "") { $natent['def_pop2_ports'] = $pconfig['def_pop2_ports']; } if ($pconfig['def_pop3_ports'] != "") { $natent['def_pop3_ports'] = $pconfig['def_pop3_ports']; } if ($pconfig['def_imap_servers'] != "") { $natent['def_imap_servers'] = $pconfig['def_imap_servers']; } if ($pconfig['def_imap_ports'] != "") { $natent['def_imap_ports'] = $pconfig['def_imap_ports']; } if ($pconfig['def_sip_proxy_ip'] != "") { $natent['def_sip_proxy_ip'] = $pconfig['def_sip_proxy_ip']; } if ($pconfig['def_sip_servers'] != "") { $natent['def_sip_servers'] = $pconfig['def_sip_servers']; }else{ $natent['def_sip_servers'] = ""; } if ($pconfig['def_sip_ports'] != "") { $natent['def_sip_ports'] = $pconfig['def_sip_ports']; }else{ $natent['def_sip_ports'] = ""; } if ($pconfig['def_sip_proxy_ports'] != "") { $natent['def_sip_proxy_ports'] = $pconfig['def_sip_proxy_ports']; } if ($pconfig['def_auth_ports'] != "") { $natent['def_auth_ports'] = $pconfig['def_auth_ports']; } if ($pconfig['def_finger_ports'] != "") { $natent['def_finger_ports'] = $pconfig['def_finger_ports']; } if ($pconfig['def_irc_ports'] != "") { $natent['def_irc_ports'] = $pconfig['def_irc_ports']; } if ($pconfig['def_nntp_ports'] != "") { $natent['def_nntp_ports'] = $pconfig['def_nntp_ports']; } if ($pconfig['def_rlogin_ports'] != "") { $natent['def_rlogin_ports'] = $pconfig['def_rlogin_ports']; } if ($pconfig['def_rsh_ports'] != "") { $natent['def_rsh_ports'] = $pconfig['def_rsh_ports']; } if ($pconfig['def_ssl_ports'] != "") { $natent['def_ssl_ports'] = $pconfig['def_ssl_ports']; } if ($pconfig['barnyard_enable'] != "") { $natent['barnyard_enable'] = $pconfig['barnyard_enable']; } if ($pconfig['barnyard_mysql'] != "") { $natent['barnyard_mysql'] = $pconfig['barnyard_mysql']; } if ($pconfig['barnconfigpassthru'] != "") { $natent['barnconfigpassthru'] = $pconfig['barnconfigpassthru']; } if ($pconfig['rulesets'] != "") { $natent['rulesets'] = $pconfig['rulesets']; } if ($pconfig['rule_sid_off'] != "") { $natent['rule_sid_off'] = $pconfig['rule_sid_off']; } if ($pconfig['rule_sid_on'] != "") { $natent['rule_sid_on'] = $pconfig['rule_sid_on']; } $if_real = snort_get_real_interface($natent['interface']); if (isset($id) && $a_nat[$id]) { if ($natent['interface'] != $a_nat[$id]['interface']) Running_Stop($snort_uuid, $if_real, $id); $a_nat[$id] = $natent; } else { if (is_numeric($after)) array_splice($a_nat, $after+1, 0, array($natent)); else $a_nat[] = $natent; } write_config(); sync_snort_package_config(); sleep(1); /* if snort.sh crashed this will remove the pid */ exec('/bin/rm /tmp/snort.sh.pid'); header( 'Expires: Sat, 26 Jul 1997 05:00:00 GMT' ); header( 'Last-Modified: ' . gmdate( 'D, d M Y H:i:s' ) . ' GMT' ); header( 'Cache-Control: no-store, no-cache, must-revalidate' ); header( 'Cache-Control: post-check=0, pre-check=0', false ); header( 'Pragma: no-cache' ); header("Location: /snort/snort_interfaces.php"); exit; } } if ($_POST["Submit2"]) { sync_snort_package_config(); sleep(1); Running_Start($snort_uuid, $if_real, $id); header( 'Expires: Sat, 26 Jul 1997 05:00:00 GMT' ); header( 'Last-Modified: ' . gmdate( 'D, d M Y H:i:s' ) . ' GMT' ); header( 'Cache-Control: no-store, no-cache, must-revalidate' ); header( 'Cache-Control: post-check=0, pre-check=0', false ); header( 'Pragma: no-cache' ); header("Location: /snort/snort_interfaces_edit.php?id=$id"); exit; } $pgtitle = "Snort: Interface Edit: $id $snort_uuid $if_real"; include_once("head.inc"); ?> ' . $pgtitle . '

';}?>

" method="post" enctype="multipart/form-data" name="iform" id="iform"> '; if($savemsg) print_info_box_np2("{$savemsg}"); else { print_info_box_np2(' The Snort configuration has changed and snort needs to be restarted on this interface.
You must apply the changes in order for them to take effect.
'); } } ?>

General Settings Enable   // care with spaces if ($pconfig['enable'] == "on") $checked = checked; $onclick_enable = "onClick=\"enable_change(false)\">"; echo " \n\n"; ?> Interface 'WAN', 'lan' => 'LAN'); for ($i = 1; isset($config['interfaces']['opt' . $i]); $i++) { $interfaces['opt' . $i] = $config['interfaces']['opt' . $i]['descr']; } } foreach ($interfaces as $iface => $ifacename): ?> > Choose which interface this rule applies to. Hint: in most cases, you'll want to use WAN here. Description You may enter a description here for your reference (not parsed). Memory Performance 'AC-BNFA', 'lowmem' => 'LOWMEM', 'ac-std' => 'AC-STD', 'ac' => 'AC', 'ac-banded' => 'AC-BANDED', 'ac-sparsebands' => 'AC-SPARSEBANDS', 'acs' => 'ACS'); foreach ($interfaces2 as $iface2 => $ifacename2): ?> > Lowmem and ac-bnfa are recommended for low end systems, Ac: high memory, best performance, ac-std: moderate memory,high performance, acs: small memory, moderateperformance, ac-banded: small memory,moderate performance, ac-sparsebands: small memory, high performance. Choose the networks snort should inspect and whitelist. Home net default"; /* find whitelist names and filter by type */ if (is_array($config['installedpackages']['snortglobal']['whitelist']['item'])) { foreach ($config['installedpackages']['snortglobal']['whitelist']['item'] as $value) { if ($value['snortlisttype'] == 'netlist') { $ilistname = $value['name']; if ($ilistname == $pconfig['homelistname']) echo ""; else echo ""; echo htmlspecialchars($ilistname) . ''; } } } ?> Choose the home net you will like this rule to use.   Note: Default home net adds only local networks. Hint: Most users add a list of friendly ips that the firewall cant see. External net default"; /* find whitelist names and filter by type */ if (is_array($config['installedpackages']['snortglobal']['whitelist']['item'])) { foreach ($config['installedpackages']['snortglobal']['whitelist']['item'] as $value) { if ($value['snortlisttype'] == 'netlist') { $ilistname = $value['name']; if ($ilistname == $pconfig['externallistname']) echo ""; else echo ""; echo htmlspecialchars($ilistname) . ''; } } } ?> Choose the external net you will like this rule to use.   Note: Default external net, networks that are not home net. Hint: Most users should leave this setting at default. Block offenders onClick="enable_blockoffenders()"> Checking this option will automatically block hosts that generate a Snort alert. Kill states > Should firewall states be killed for the blocked ip Which ip to block "; else echo ""; echo htmlspecialchars($btype) . ''; } ?> Which ip extracted from the packet you want to block Whitelist default\n"; if (is_array($config['installedpackages']['snortglobal']['whitelist']['item'])) { foreach ($config['installedpackages']['snortglobal']['whitelist']['item'] as $value) { if ($value['snortlisttype'] == 'whitelist') { if ($value['name'] == $pconfig['whitelistname']) echo ""; else echo ""; echo htmlspecialchars($value['name']) . ''; } } } ?> Choose the whitelist you will like this rule to use.   Note: Default whitelist adds only local networks. Note: This option will only be used when block offenders is on. Suppression and filtering default\n"; if (is_array($config['installedpackages']['snortglobal']['suppress']['item'])) { $slist_select = $config['installedpackages']['snortglobal']['suppress']['item']; foreach ($slist_select as $value) { $ilistname = $value['name']; if ($ilistname == $pconfig['suppresslistname']) echo ""; else echo ""; echo htmlspecialchars($ilistname) . ''; } } ?> Choose the suppression or filtering file you will like this rule to use.   Note: Default option disables suppression and filtering. Choose the types of logs snort should create. Send alerts to main System logs onClick="enable_change(false)"> Snort will send Alerts to the Pfsense system logs. Log to a Tcpdump file onClick="enable_change(false)"> Snort will log packets to a tcpdump-formatted file. The file then can be analyzed by an application such as Wireshark which understands pcap file formats. WARNING: File may become large. Log Alerts to a snort unified2 file onClick="enable_change(false)"> Snort will log Alerts to a file in the UNIFIED2 format. This is a requirement for barnyard2. Arguments here will be automatically inserted into the snort configuration. Advanced configuration pass through <?=htmlspecialchars($pconfig['configpassthru']);?>   Note: Please save your settings before you click start.