[root@noc1 zapache]# diff -Nau zapache zapache.fixed 
--- zapache	2017-10-06 08:39:39.275790432 -0400
+++ zapache.fixed	2017-12-08 09:16:22.046713243 -0500
@@ -85,6 +85,13 @@
 touch -d "@$((`date +%s` - ($cache_seconds - 1)))" "$cache_timestamp_check"
 
 if [ "$cache" -ot "$cache_timestamp_check" ]; then
+	cache_valid=0
+else
+	cache_valid=1
+fi
+
+if [ $cache_valid == 0 ]; then
+
 	curl="`which curl`"
 	if [ "$curl" ]; then
 		fetch_url() { $curl --insecure --silent --location -H "Cache-Control: no-cache" "$@"; }
@@ -104,14 +111,15 @@
 		echo "ZBX_NOTSUPPORTED"
 		exit 1
 	fi
+	cache_valid=1
 fi
 
 case "$CASE_VALUE" in
 'ping')
-	if [ ! -s "$cache" -o "$cache" -ot "$cache_timestamp_check" ]; then
-		echo "0"
-	else
+	if [ -s "$cache" -a  $cache_valid == 1 ]; then
 		echo "1"
+	else
+		echo "0"
 	fi
 	exit 0;;
 esac