diff --git a/includes/services/ssl_cert/check.inc b/includes/services/ssl_cert/check.inc
new file mode 100644
index 000000000..1f0cb9d7b
--- /dev/null
+++ b/includes/services/ssl_cert/check.inc
@@ -0,0 +1,20 @@
+<?php
+
+$cmd = $config['nagios_plugins'] . "/check_ssl_cert -H ";
+if( !empty($service['service_ip']) ) {
+	$cmd .= $service['service_ip'];
+} else {
+	$cmd .= $service['hostname'];
+}
+$cmd .= " ".$service['service_param'];
+
+$check = shell_exec($cmd);
+list($check, $time) = split("\|", $check);
+
+if(strstr($check, "SSL_CERT OK")) {
+  $status = '1';
+} else {
+  $status = '0';
+}
+
+?>