diff options
| -rw-r--r-- | config/tinydns/tinydns.inc | 413 |
1 files changed, 215 insertions, 198 deletions
diff --git a/config/tinydns/tinydns.inc b/config/tinydns/tinydns.inc index 3bf64777..27059c52 100644 --- a/config/tinydns/tinydns.inc +++ b/config/tinydns/tinydns.inc @@ -1,11 +1,10 @@ <?php - -/* $Id$ */ /* - tinydns.inc + checkmk.inc + part of pfSense (https://www.pfSense.org/) Copyright (C) 2006, 2007, 2008, 2009 Scott Ullrich - Parts Copyright (C) 2007 Goffredo Andreone - part of pfSense + Copyright (C) 2007 Goffredo Andreone + Copyright (C) 2015 ESF, LLC All rights reserved. Redistribution and use in source and binary forms, with or without @@ -29,7 +28,6 @@ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ - if(!function_exists("filter_configure")) require_once("filter.inc"); @@ -208,6 +206,35 @@ function tinydns_custom_php_deinstall_command() { conf_mount_ro(); } +function tinydns_upgrade_config() { + /* Remove obsolete XMLRPC sync configuration */ + if (is_array($config['installedpackages']['tinydnssync']['config'])) { + if (isset($config['installedpackages']['tinydnssync']['config'][0]['ipaddress'])) { + unset($config['installedpackages']['tinydnssync']['config'][0]['ipaddress']); + } + if (isset($config['installedpackages']['tinydnssync']['config'][0]['ipaddress2'])) { + unset($config['installedpackages']['tinydnssync']['config'][0]['ipaddress2']); + } + if (isset($config['installedpackages']['tinydnssync']['config'][0]['ipaddress3'])) { + unset($config['installedpackages']['tinydnssync']['config'][0]['ipaddress3']); + } + if (isset($config['installedpackages']['tinydnssync']['config'][0]['password'])) { + unset($config['installedpackages']['tinydnssync']['config'][0]['password']); + } + if (isset($config['installedpackages']['tinydnssync']['config'][0]['password2'])) { + unset($config['installedpackages']['tinydnssync']['config'][0]['password2']); + } + if (isset($config['installedpackages']['tinydnssync']['config'][0]['password3'])) { + unset($config['installedpackages']['tinydnssync']['config'][0]['password3']); + } + } + if (is_array($config['installedpackages']['tinydns']['config'])) { + if (isset($config['installedpackages']['tinydns']['config'][0]['syncxmlrpc'])) { + unset($config['installedpackages']['tinydns']['config'][0]['syncxmlrpc']); + } + } +} + function tinydns_custom_php_changeip_command() { global $g, $config; conf_mount_rw(); @@ -232,10 +259,18 @@ function tinydns_custom_php_changeip_command() { if(!is_dir("{$g['varrun_path']}/service")) exec("/bin/mkdir -p {$g['varrun_path']}/service"); - exec("/usr/sbin/pw useradd Gtinydns"); - exec("/usr/sbin/pw useradd Gdnslog"); - exec("/usr/sbin/pw useradd Gdnscache"); - exec("/usr/sbin/pw useradd Gaxfrdns"); + if (!exec("/usr/sbin/pw usershow Gtinydns")) { + exec("/usr/sbin/pw useradd Gtinydns"); + } + if (!exec("/usr/sbin/pw usershow Gdnslog")) { + exec("/usr/sbin/pw useradd Gdnslog"); + } + if (!exec("/usr/sbin/pw usershow Gdnscache")) { + exec("/usr/sbin/pw useradd Gdnscache"); + } + if (!exec("/usr/sbin/pw usershow Gaxfrdns")) { + exec("/usr/sbin/pw useradd Gaxfrdns"); + } exec("/bin/rm -r {$g['varetc_path']}/dnscache*"); exec("/bin/rm -r {$g['varrun_path']}/service/dnscache*"); @@ -259,21 +294,14 @@ function tinydns_custom_php_changeip_command() { foreach ($interfaces as $dnsidx => $dnsif) { $dnscacheif = convert_friendly_interface_to_real_interface_name($dnsif); $dnscacheip = find_interface_ip($dnscacheif); - if (intval($config['version']) >= 6) - $ipmask = find_interface_subnet($dnscacheif); - else - $ipmask = $config['interfaces'][$dnsif]['subnet']; - - if (intval($config['version']) <= 8) { - if (is_ipaddr($ipaddress)) - $arr = tinydns_get_ip_subnet_arpa($ipaddress, $ipmask); - } else { - if (is_ipaddrv4($ipaddress)) { - $arr = tinydns_get_ip_subnet_arpa($ipaddress, $ipmask); - } elseif (is_ipaddrv6($ipaddress)) { - $arr = tinydns_get_ip6_subnet_arpa($ipaddress, $ipmask); - } + $ipmask = find_interface_subnet($dnscacheif); + + if (is_ipaddrv4($ipaddress)) { + $arr = tinydns_get_ip_subnet_arpa($ipaddress, $ipmask); + } elseif (is_ipaddrv6($ipaddress)) { + $arr = tinydns_get_ip6_subnet_arpa($ipaddress, $ipmask); } + $dnsuserip = $arr[0]; //exec("/bin/mkdir -p {$g['varetc_path']}/dnscache{$dnsidx}"); exec("/usr/local/bin/dnscache-conf Gdnscache Gdnslog {$g['varetc_path']}/dnscache{$dnsidx} {$dnscacheip}"); @@ -305,7 +333,7 @@ function tinydns_custom_php_changeip_command() { exec("{$svc_path} -xk {$g['varetc_path']}/dnscache{$dnsidx}"); } } else { - $interfaces = explode(",", $$config['installedpackages']['tinydns']['config'][0]['interface']); + $interfaces = explode(",", $config['installedpackages']['tinydns']['config'][0]['interface']); foreach ($interfaces as $dnsidx => $dnsif) { if(is_dir("{$g['varetc_path']}/dnscache{$dnsidx}")) dnscache_use_root_servers($dnsidx); @@ -517,10 +545,7 @@ function tinydns_create_zone_file() { foreach ($interfaces as $dnsif) { $dnsrif = convert_friendly_interface_to_real_interface_name($dnsif); $dnsrip = find_interface_ip($dnsrif); - if (intval($config['version']) >= 6) - $ipmask = find_interface_subnet($dnsrif); - else - $ipmask = $config['interfaces'][$dnsif]['subnet']; + $ipmask = find_interface_subnet($dnsrif); $dhcpdfqdn = "{$dhcpdhostname}.{$dhcpddomain}"; tinydns_complete_soa_record($fd, $dnsrip, $ipmask, $dhcpdhostname, $dhcpddomain); } @@ -544,10 +569,7 @@ function tinydns_create_zone_file() { $dnsrif = convert_friendly_interface_to_real_interface_name($dnsif); $dnsrip = find_interface_ip($dnsrif); - if (intval($config['version']) >= 6) - $ipmask = find_interface_subnet($dnsrif); - else - $ipmask = $config['interfaces'][$dnsif]['subnet']; + $ipmask = find_interface_subnet($dnsrif); $dhcpdfqdn = "{$dhcpdhostname}.{$dhcpddomain}"; tinydns_complete_soa_record($fd, $dnsrip, $ipmask, $dhcpdhostname, $dhcpddomain); @@ -606,15 +628,10 @@ function tinydns_create_zone_file() { if($record_data) { fwrite($fd, $record_data . "\n"); if ($domain['rdns'] || ($domain['recordtype'] == 'PTR')) { - if (intval($config['version']) <= 8) { - if (is_ipaddr($ipaddress)) - $rip = tinydns_get_ip_subnet_arpa($ipaddress, 32); - } else { - if (is_ipaddrv4($ipaddress)) { - $rip = tinydns_get_ip_subnet_arpa($ipaddress, 32); - } elseif (is_ipaddrv6($ipaddress)) { - $rip = tinydns_get_ip6_subnet_arpa($ipaddress, 128); - } + if (is_ipaddrv4($ipaddress)) { + $rip = tinydns_get_ip_subnet_arpa($ipaddress, 32); + } elseif (is_ipaddrv6($ipaddress)) { + $rip = tinydns_get_ip6_subnet_arpa($ipaddress, 128); } if($rip) @@ -651,95 +668,146 @@ function tinydns_create_zone_file() { function tinydns_sync_on_changes() { global $g, $config; - log_error("[tinydns] tinydns_xmlrpc_sync.php is starting."); - $synconchanges = $config['installedpackages']['tinydnssync']['config'][0]['synconchanges']; - if(!$synconchanges) - return; - $sync_hosts = $config['installedpackages']['tinydnssync']['config']; - $previous_ip = ""; - $x=0; - $sh = $config['installedpackages']['tinydnssync']['config'][0]; - for($x=1; $x<5; $x++) { - if($x > 1) - $counter = $x; - else - $counter = ""; - $sync_to_ip = ""; - $password = ""; - if($sh['ipaddress' . $counter]) { - $sync_to_ip = $sh['ipaddress' . $counter]; - $password = $sh['password' . $counter]; + + /* XMLRPC sync */ + if (is_array($config['installedpackages']['tinydnssync']['config'])) { + $tinydns_sync = $config['installedpackages']['tinydnssync']['config'][0]; + $synconchanges = $tinydns_sync['synconchanges']; + $synctimeout = $tinydns_sync['synctimeout'] ?: '250'; + switch ($synconchanges) { + case "manual": + if (is_array($tinydns_sync['row'])) { + $rs = $tinydns_sync['row']; + } else { + log_error("[tinydns] XMLRPC sync is enabled but there are no hosts configured as replication targets."); + return; + } + break; + case "auto": + if (is_array($config['hasync'])) { + $system_carp = $config['hasync']; + $rs[0]['ipaddress'] = $system_carp['synchronizetoip']; + $rs[0]['username'] = $system_carp['username']; + $rs[0]['password'] = $system_carp['password']; + $rs[0]['syncdestinenable'] = FALSE; + + // XMLRPC sync is currently only supported over connections using the same protocol and port as this system + if ($config['system']['webgui']['protocol'] == "http") { + $rs[0]['syncprotocol'] = "http"; + $rs[0]['syncport'] = $config['system']['webgui']['port'] ?: '80'; + } else { + $rs[0]['syncprotocol'] = "https"; + $rs[0]['syncport'] = $config['system']['webgui']['port'] ?: '443'; + } + if ($system_carp['synchronizetoip'] == "") { + log_error("[tinydns] XMLRPC CARP/HA sync is enabled but there are no system backup hosts configured as replication targets."); + return; + } else { + $rs[0]['syncdestinenable'] = TRUE; + } + } else { + log_error("[tinydns] XMLRPC CARP/HA sync is enabled but there are no system backup hosts configured as replication targets."); + return; + } + break; + default: + return; + break; } - if($password && $sync_to_ip) - tinydns_do_xmlrpc_sync($sync_to_ip, $password); - } - tinydns_create_zone_file(); - if ($config['installedpackages']['tinydns']['config'][0]['enableipmonitoring']) { - tinydns_setup_ping_items(); - } - log_error("[tinydns] tinydns_xmlrpc_sync.php is ending."); + if (is_array($rs)) { + log_error("[tinydns] XMLRPC sync is starting."); + foreach ($rs as $sh) { + // Only sync enabled replication targets + if ($sh['syncdestinenable']) { + $sync_to_ip = $sh['ipaddress']; + $port = $sh['syncport']; + $username = $sh['username'] ?: 'admin'; + $password = $sh['password']; + $protocol = $sh['syncprotocol']; + + $error = ''; + $valid = TRUE; + + if ($password == "") { + $error = "Password parameter is empty. "; + $valid = FALSE; + } + if (!is_ipaddr($sync_to_ip) && !is_hostname($sync_to_ip) && !is_domain($sync_to_ip)) { + $error .= "Misconfigured Replication Target IP Address or Hostname. "; + $valid = FALSE; + } + if (!is_port($port)) { + $error .= "Misconfigured Replication Target Port. "; + $valid = FALSE; + } + if ($valid) { + tinydns_do_xmlrpc_sync($sync_to_ip, $port, $protocol, $username, $password, $synctimeout); + } else { + log_error("[tinydns] XMLRPC sync with '{$sync_to_ip}' aborted due to the following error(s): {$error}"); + } + } + } + log_error("[tinydns] tinydns_xmlrpc_sync.php is ending."); + } + } } -function tinydns_do_xmlrpc_sync($sync_to_ip, $password) { +/* Do the actual XMLRPC sync. */ +function tinydns_do_xmlrpc_sync($sync_to_ip, $port, $protocol, $username, $password, $synctimeout) { global $config, $g; - if(!$password) + /* Detect boot process, do nothing during boot. */ + if (function_exists("platform_booting")) { + if (platform_booting()) { + return; + } + } elseif ($g['booting']) { return; + } - if(!$sync_to_ip) + if ($username == "" || $password == "" || $sync_to_ip == "" || $port == "" || $protocol == "") { + log_error("[tinydns] A required XMLRPC sync parameter (username, password, replication target, port or protocol) is empty ... aborting pkg sync"); return; + } - $xmlrpc_sync_neighbor = $sync_to_ip; - if($config['system']['webgui']['protocol'] != "") { - $synchronizetoip = $config['system']['webgui']['protocol']; - $synchronizetoip .= "://"; - } - $port = $config['system']['webgui']['port']; - /* if port is empty lets rely on the protocol selection */ - if($port == "") { - if($config['system']['webgui']['protocol'] == "http") - $port = "80"; - else - $port = "443"; - } - $synchronizetoip .= $sync_to_ip; + // Take care of IPv6 literal address + if (is_ipaddrv6($sync_to_ip)) { + $sync_to_ip = "[{$sync_to_ip}]"; + } - /* xml will hold the sections to sync */ + $url = "{$protocol}://{$sync_to_ip}"; + + /* XML will hold the sections to sync. */ $xml = array(); $xml['tinydnsdomains'] = $config['installedpackages']['tinydnsdomains']; + /* Assemble XMLRPC payload. */ + $params = array(XML_RPC_encode($password), XML_RPC_encode($xml)); - /* assemble xmlrpc payload */ - $params = array( - XML_RPC_encode($password), - XML_RPC_encode($xml) - ); - - /* set a few variables needed for sync code borrowed from filter.inc */ - $url = $synchronizetoip; - log_error("Beginning TinyDNS XMLRPC sync to {$url}:{$port}."); + /* Set a few variables needed for sync code */ $method = 'pfsense.merge_installedpackages_section_xmlrpc'; $msg = new XML_RPC_Message($method, $params); $cli = new XML_RPC_Client('/xmlrpc.php', $url, $port); - $cli->setCredentials('admin', $password); - if($g['debug']) + $cli->setCredentials($username, $password); + if ($g['debug']) { $cli->setDebug(1); - /* send our XMLRPC message and timeout after 250 seconds */ - $resp = $cli->send($msg, "250"); - if(!$resp) { - $error = "A communications error occured while attempting tinydns XMLRPC sync with {$url}:{$port}."; - log_error($error); + } + /* Send our XMLRPC message and timeout after defined sync timeout value */ + $resp = $cli->send($msg, $synctimeout); + if (!$resp) { + $error = "A communications error occured while attempting XMLRPC sync with {$url}:{$port}."; + log_error("[tinydns] {$error}"); file_notice("sync_settings", $error, "tinydns Settings Sync", ""); - } elseif($resp->faultCode()) { + } elseif ($resp->faultCode()) { $cli->setDebug(1); - $resp = $cli->send($msg, "250"); - $error = "An error code was received while attempting tinydns XMLRPC sync with {$url}:{$port} - Code " . $resp->faultCode() . ": " . $resp->faultString(); - log_error($error); + $resp = $cli->send($msg, $synctimeout); + $error = "An error code was received while attempting XMLRPC sync with {$url}:{$port} - Code " . $resp->faultCode() . ": " . $resp->faultString(); + log_error("[tinydns] {$error}"); file_notice("sync_settings", $error, "tinydns Settings Sync", ""); } else { - log_error("tinydns XMLRPC sync successfully completed with {$url}:{$port}."); + log_error("[tinydns] XMLRPC sync successfully completed with {$url}:{$port}."); } - /* tell tinydns to reload our settings on the destionation sync host. */ + /* Tell tinydns to reload our settings on the destionation sync host. */ $method = 'pfsense.exec_php'; $execcmd = "require_once('functions.inc');\n"; $execcmd .= "require_once('/usr/local/pkg/tinydns.inc');\n"; @@ -749,31 +817,27 @@ function tinydns_do_xmlrpc_sync($sync_to_ip, $password) { $execcmd .= "tinydns_setup_ping_items();\n"; } - /* assemble xmlrpc payload */ - $params = array( - XML_RPC_encode($password), - XML_RPC_encode($execcmd) - ); + /* Assemble XMLRPC payload. */ + $params = array(XML_RPC_encode($password), XML_RPC_encode($execcmd)); - log_error("tinydns XMLRPC reload data {$url}:{$port}."); + log_error("[tinydns] XMLRPC reload data {$url}:{$port}."); $msg = new XML_RPC_Message($method, $params); $cli = new XML_RPC_Client('/xmlrpc.php', $url, $port); - $cli->setCredentials('admin', $password); - $resp = $cli->send($msg, "250"); - if(!$resp) { - $error = "A communications error occured while attempting tinydns XMLRPC sync with {$url}:{$port} (pfsense.exec_php)."; - log_error($error); + $cli->setCredentials($username, $password); + $resp = $cli->send($msg, $synctimeout); + if (!$resp) { + $error = "A communications error occured while attempting XMLRPC sync with {$url}:{$port} (pfsense.exec_php)."; + log_error("[tinydns] {$error}"); file_notice("sync_settings", $error, "tinydns Settings Sync", ""); - } elseif($resp->faultCode()) { + } elseif ($resp->faultCode()) { $cli->setDebug(1); - $resp = $cli->send($msg, "250"); - $error = "An error code was received while attempting tinydns XMLRPC sync with {$url}:{$port} - Code " . $resp->faultCode() . ": " . $resp->faultString(); - log_error($error); + $resp = $cli->send($msg, $synctimeout); + $error = "An error code was received while attempting XMLRPC sync with {$url}:{$port} - Code " . $resp->faultCode() . ": " . $resp->faultString(); + log_error("[tinydns] {$error}"); file_notice("sync_settings", $error, "tinydns Settings Sync", ""); } else { - log_error("tinydns XMLRPC reload data success with {$url}:{$port} (pfsense.exec_php)."); + log_error("[tinydns] XMLRPC reload data success with {$url}:{$port} (pfsense.exec_php)."); } - } /* formats data as a tinydns data row item */ @@ -789,18 +853,15 @@ function tinydns_get_rowline_data($recordip, $recordtype, $ttl, $hostname, $rdns /* Note that some of these are simplistic versions of TinyDNS record handling. Uber-users can always do "raw" entries... */ case "SOA": // .fqdn:ip:x:ttl:timestamp:lo - if (intval($config['version']) <= 8) { - $record_data = ".{$hostname}::{$recordip}{$ttl_string}"; + if (is_ipaddrv6($hostname)) { + list($rip, $rmask) = explode("/", $hostname); + $rmask = empty($rmask) ? 128 : $rmask; + $ip6_arpa = tinydns_get_ip6_subnet_arpa($rip, $rmask); + $record_data = ".{$ip6_arpa[1]}::{$recordip}{$ttl_string}"; } else { - if (is_ipaddrv6($hostname)) { - list($rip, $rmask) = explode("/", $hostname); - $rmask = empty($rmask) ? 128 : $rmask; - $ip6_arpa = tinydns_get_ip6_subnet_arpa($rip, $rmask); - $record_data = ".{$ip6_arpa[1]}::{$recordip}{$ttl_string}"; - } else { - $record_data = ".{$hostname}::{$recordip}{$ttl_string}"; - } + $record_data = ".{$hostname}::{$recordip}{$ttl_string}"; } + break; case "NS": // &serious.panic.mil:1.8.248.6:a @@ -832,17 +893,11 @@ function tinydns_get_rowline_data($recordip, $recordtype, $ttl, $hostname, $rdns case "PTR": /* "^" creates "PTR" record only to allow reverse DNS */ // ^fqdn:p:ttl:timestamp:lo - - if (intval($config['version']) <= 8) { - if (is_ipaddr($recordip)) - $record_data = "^{$hostname}:{$recordip}{$ttl_string}"; - } else { - if (is_ipaddrv4($recordip)) { - $record_data = "^{$hostname}:{$recordip}{$ttl_string}"; - } elseif (is_ipaddrv6($recordip)) { - $ip6_arpa = tinydns_get_ip6_subnet_arpa($recordip, 128); - $record_data = "^{$ip6_arpa[1]}:{$hostname}{$ttl_string}"; - } + if (is_ipaddrv4($recordip)) { + $record_data = "^{$hostname}:{$recordip}{$ttl_string}"; + } elseif (is_ipaddrv6($recordip)) { + $ip6_arpa = tinydns_get_ip6_subnet_arpa($recordip, 128); + $record_data = "^{$ip6_arpa[1]}:{$hostname}{$ttl_string}"; } break; case "A": @@ -1016,15 +1071,10 @@ function tinydns_complete_soa_record($fd, $ip, $ipmask, $nsname, $domain) { global $config; $fqdn = "{$nsname}.{$domain}"; - if (intval($config['version']) <= 8) { - if (is_ipaddr($ipaddress)) - $rip = tinydns_get_ip_subnet_arpa($ipaddress, $ipmask); - } else { - if (is_ipaddrv4($ipaddress)) { - $rip = tinydns_get_ip_subnet_arpa($ipaddress, $ipmask); - } elseif (is_ipaddrv6($ipaddress)) { - $rip = tinydns_get_ip6_subnet_arpa($ipaddress, $ipmask); - } + if (is_ipaddrv4($ipaddress)) { + $rip = tinydns_get_ip_subnet_arpa($ipaddress, $ipmask); + } elseif (is_ipaddrv6($ipaddress)) { + $rip = tinydns_get_ip6_subnet_arpa($ipaddress, $ipmask); } $soa = ".{$domain}::{$fqdn}"; @@ -1181,53 +1231,20 @@ function tinydns_dnscache_forwarding_servers($index) { global $g, $config; exec("echo 1 > {$g['varetc_path']}/dnscache{$index}/env/FORWARDONLY"); - if(is_dir("{$g['varetc_path']}/dnscache{$index}/root/servers/")) + if (is_dir("{$g['varetc_path']}/dnscache{$index}/root/servers/")) { exec("rm -R {$g['varetc_path']}/dnscache/root/servers/"); + } exec("/bin/mkdir -p {$g['varetc_path']}/dnscache{$index}/root/servers/"); - if (intval($config['version']) >= 6) - if (!empty(glob("{$g['varetc_path']}/nameserver_*"))) { - exec("/bin/cat {$g['varetc_path']}/nameserver_* > {$g['varetc_path']}/dnscache{$index}/root/servers/@"); - } else { - $fw = fopen("{$g['varetc_path']}/dnscache{$index}/root/servers/@", "w"); - if (! $fw) { - printf("Error: cannot open dnscache/root/servers/@ in tinydns_register_forwarding_servers().\n"); - return 1; - } - fwrite($fw, $config['system']['dnsserver'][0]); - fclose($fw); - } - else { - $fr = fopen("{$g['varetc_path']}/resolv.conf.dnscache", "r"); - if (! $fr) { - printf("Error: cannot open resolv.conf.dnscache in tinydns_register_forwarding_servers().\n"); - return 1; - } - $lip = strlen("nameserver") + 1; - $j = 0; - $iprecords = ""; - while (!feof($fr)) { - $routers = fgets($fr, 4096); - $discard = ($routers[0] == "\n"); - if(!$discard) { - if ($routerip = strstr($routers,"nameserver")) { - $routerip = substr($routerip,$lip); - if($routerip) { - $j += 1; - $routera = "{$routerip}"; - $iprecords .= $routera; - } - } - } - } - fclose($fr); - $fr = fopen("{$g['varetc_path']}/dnscache{$index}/root/servers/@", "w"); - if (! $fr) { - printf("Error: cannot write to {$g['varetc_path']}/dnscache{$index}/root/servers/@ in tinydns_dnscache_forwarding_servers().\n"); + if (!empty(glob("{$g['varetc_path']}/nameserver_*"))) { + exec("/bin/cat {$g['varetc_path']}/nameserver_* > {$g['varetc_path']}/dnscache{$index}/root/servers/@"); + } else { + $fw = fopen("{$g['varetc_path']}/dnscache{$index}/root/servers/@", "w"); + if (!$fw) { + printf("Error: cannot open dnscache/root/servers/@ in tinydns_register_forwarding_servers().\n"); return 1; } - if($iprecords) - fwrite($fr, $iprecords); - fclose($fr); + fwrite($fw, $config['system']['dnsserver'][0]); + fclose($fw); } } |