diff --git a/install.sh b/install.sh
old mode 100644
new mode 100755
index f2066e0..df7eb98
--- a/install.sh
+++ b/install.sh
@@ -12,21 +12,47 @@ if [ ! -d $wdir_connect ];then
 	mkdir -p $wdir_connect
 fi
 
-# check for node
-nodeversion=$(node $wdir/test/testnode.js)
-if [ $nodeversion != 'Node_is_working' ];then
-	echo "Cannot find node"
-	echo "Install it and try again!"
-	toolsok='no'
+#check for jq
+if ! command -v jq &> /dev/null
+then
+	    toolsok='no'
+	    echo "jq could not be found"
+	        exit
+fi
+
+# check version >15
+if ! command -v node &> /dev/null
+then 
+		toolsok='no'
+		echo "Install: https://github.com/nodesource/distributions"
+		echo "Install it and try again!"
+else
+	nodeversion=$(node -v | cut -d'.' -f1)
+	nodeversion="${nodeversion#v}"
+	if [ $nodeversion -lt 15  ];then
+		echo "node version < 15"
+		echo "Update: https://github.com/nodesource/distributions"
+		echo "Update it and try again!"
+		toolsok='no'
+	fi
 fi
 
 #check for docker
-dockerversion=$(/bin/bash $wdir/test/testdocker.sh)
-if [ $dockerversion != 'linux' ];then
-	echo "Cannot find docker"
-	echo "Install it and try again!"
-        echo "http://docs.swarmlab.io/SwarmLab-HowTos/labs/Howtos/docker/install.adoc.html"
-	toolsok='no'
+if ! command -v docker &> /dev/null
+then 
+		echo "Cannot find docker"
+		echo "Install it and try again!"
+		echo "http://docs.swarmlab.io/SwarmLab-HowTos/labs/Howtos/docker/install.adoc.html"
+		toolsok='no'
+else
+	dockerversion=$(docker info --format "{{json .}}" | jq .ServerVersion | cut -d'.' -f1)
+	dockerversion="${dockerversion#\"}"
+	if [ $dockerversion -lt 19 ];then
+		echo "docker version < 19"
+		echo "Update docker and try again!"
+		echo "http://docs.swarmlab.io/SwarmLab-HowTos/labs/Howtos/docker/install.adoc.html"
+		toolsok='no'
+	fi
 fi
 
 #check for docker-compose
@@ -39,8 +65,8 @@ if [ $dockercomposeversion != 'swarmlabclient' ];then
 fi
 
 #check for wireguard
-wgversion=$(wg --version | cut -d' ' -f1)
-if [ $wgversion != 'wireguard-tools' ];then
+if ! command -v wg &> /dev/null
+then
 	echo "Cannot find wg"
 	echo "Install it and try again!"
         echo "https://www.wireguard.com/install/"
@@ -56,14 +82,8 @@ then
 	        exit
 fi
 
-#check for jq
-if ! command -v jq &> /dev/null
-then
-	    toolsok='no'
-	    echo "jq could not be found"
-	        exit
-fi
 
+# npm install 
 
 if [ $toolsok == 'ok' ];then
 	npm install 
diff --git a/test/testnode.js b/test/testnode.js
deleted file mode 100644
index accb9c9..0000000
--- a/test/testnode.js
+++ /dev/null
@@ -1,4 +0,0 @@
-function testNode() {
-  return "Node_is_working"
-}; 
-console.log(testNode());