diff --git a/install/usr/share/swarmlab.io/sec/project/courses/README b/install/usr/share/swarmlab.io/sec/project/courses/README
new file mode 100644
index 0000000..50cc7af
--- /dev/null
+++ b/install/usr/share/swarmlab.io/sec/project/courses/README
@@ -0,0 +1 @@
+Course examples
diff --git a/install/usr/share/swarmlab.io/sec/project/courses/example-helloworld/app/client.js b/install/usr/share/swarmlab.io/sec/project/courses/example-helloworld/app/client.js
new file mode 100644
index 0000000..0be0921
--- /dev/null
+++ b/install/usr/share/swarmlab.io/sec/project/courses/example-helloworld/app/client.js
@@ -0,0 +1,31 @@
+
+const app = require('express')();
+const http = require('http').Server(app);
+var path = require('path');
+
+options = {
+        secure:true,
+        reconnect: true,
+        rejectUnauthorized : false
+};
+
+
+var io2 = require('socket.io-client');
+var socket = io2.connect('http://localhost:8084', options);
+
+var msg2 = "c= 120";
+socket.emit('log', msg2);
+
+/*
+var io = require('socket.io')(http);
+
+app.get('/log', (req, res) => {
+  socket.emit('log', 'send from get');
+  res.send('<h1>send</h1>');
+});
+
+http.listen(8085, () => {
+  console.log('listening on *:8085');
+});
+*/
+
diff --git a/install/usr/share/swarmlab.io/sec/project/courses/example-helloworld/app/helloworld.js b/install/usr/share/swarmlab.io/sec/project/courses/example-helloworld/app/helloworld.js
new file mode 100644
index 0000000..14b15f3
--- /dev/null
+++ b/install/usr/share/swarmlab.io/sec/project/courses/example-helloworld/app/helloworld.js
@@ -0,0 +1,90 @@
+const app = require('express')();
+const http = require('http').Server(app);
+var path = require('path');
+var io = require('socket.io')(http);
+const MongoClient = require('mongodb').MongoClient;
+
+
+app.get('/', (req, res) => {
+  res.send('<h1>Hello world!</h1>');
+});
+
+app.get('/test', (req, res) => {
+
+
+            var user="test1"
+            var pass="newpass"
+              //mongo “mongodb://localhost:30001,localhost:30002,localhost:30003/$MONGO_INITDB_DATABASE” -u $MONGO_INITDB_USERNAME mongo “mongodb://localhost:30001,localhost:30002,localhost:30003/app_swarmlab” -u app_swarmlab
+             //mongodb://host1:27017,host2:27017,host3:27017/?replicaSet=myRs
+             //var mongourl = "mongodb://"+user+":"+pass+"@localhost:30001,localhost:30002,localhost:30003/app_swarmlab?replicaSet=rs0&authSource=admin"
+  /*
+  use admin
+db.createUser(
+   {
+     user: "test1",
+     pwd: 'newpass',      // Or  "<cleartext password>"
+     roles: [ { role: "readWrite", db: "app_swarmlab" } ],
+     authenticationRestrictions: [ {
+        clientSource: ["192.168.1.7"],
+        serverAddress: ["192.168.80.2", "192.168.80.3", "192.168.80.4"]
+     } ]
+   }
+)
+*/
+
+            var mongourl = "mongodb://"+user+":"+pass+"@192.168.80.2:27017/app_swarmlab?replicaSet=rs0&authSource=admin"
+            const OPTS = {
+              useNewUrlParser: true,
+              useUnifiedTopology: true
+            };
+var options = {
+    useNewUrlParser: true,
+      useUnifiedTopology: true
+}
+
+
+            MongoClient.connect(mongourl, options, function(err, client){
+                if(err){
+                    console.log(err);
+                } else {
+                  console.log(JSON.stringify('mongo ----------------connected'))
+                  const db = client.db('app_swarmlab');
+                  db.collection('logs').find({}).toArray()
+                      .then(item => {
+                          console.log('item '+JSON.stringify(item))
+                          for (let i in item) {
+                            console.log(JSON.stringify('items' + item[i]))
+                           }
+                        })
+
+                }
+            })
+  res.send('<h1>test!</h1>');
+
+});
+
+
+
+
+
+io.on('connection', s => {
+      console.error('socket connection');
+
+   s.on('log', (data, room) => {
+      s.to('iot').emit('message', data);
+      console.log('broadcast', data);
+
+  });
+    //s.emit('message', 'message from server');
+
+
+
+});
+
+
+
+
+
+http.listen(8084, () => {
+  console.log('listening on *:8084');
+});
diff --git a/install/usr/share/swarmlab.io/sec/project/courses/example-helloworld/app/server.js b/install/usr/share/swarmlab.io/sec/project/courses/example-helloworld/app/server.js
new file mode 100644
index 0000000..66f9c8b
--- /dev/null
+++ b/install/usr/share/swarmlab.io/sec/project/courses/example-helloworld/app/server.js
@@ -0,0 +1,24 @@
+var path = require('path');
+var app = require('express')();
+var http = require('http').Server(app);
+var io = require('socket.io')(http);
+
+
+
+io.on('connection', s => {
+      console.error('socket connection');
+
+   s.on('log', (data, room) => {
+      s.to('iot').emit('message', data);
+      console.log('broadcast', data);
+
+  });
+    //s.emit('message', 'message from server');
+
+
+
+});
+
+
+http.listen(8084, () => console.error('listening on http://localhost:8084/'));
+console.error('socket.io example');
diff --git a/install/usr/share/swarmlab.io/sec/project/courses/example-helloworld/package.json b/install/usr/share/swarmlab.io/sec/project/courses/example-helloworld/package.json
new file mode 100644
index 0000000..45af24c
--- /dev/null
+++ b/install/usr/share/swarmlab.io/sec/project/courses/example-helloworld/package.json
@@ -0,0 +1,8 @@
+{
+  "dependencies": {
+    "express": "^4.17.1",
+    "mongodb": "^3.6.5",
+    "socket.io": "^4.0.0",
+    "socket.io-client": "^4.0.0"
+  }
+}
diff --git a/install/usr/share/swarmlab.io/sec/swarmlab-sec b/install/usr/share/swarmlab.io/sec/swarmlab-sec
index da7950d..2cfa828 100755
--- a/install/usr/share/swarmlab.io/sec/swarmlab-sec
+++ b/install/usr/share/swarmlab.io/sec/swarmlab-sec
@@ -34,7 +34,7 @@ PACKAGES=$(cat <<EOF
 	vim 
 EOF
 )
-
+# PACKAGES enabled ths with apt-get update && apt-get $APTPARAM install -y openssh-server $PACKAGES in in RUN export DEBIAN_FRONTEND=noninteractive 
 APTPARAM=" --no-install-recommends "
 IMAGE_local="hybrid-nodevuejs"
 HYBRID_NETWORK="hybrid-nodevuejs"
@@ -298,6 +298,7 @@ fi
 
 /bin/mkdir -p $Wdir/project
 /bin/cp -rf $DIR/project/bin $Wdir/project
+/bin/cp -rf $DIR/project/courses $Wdir/project
 /bin/cp -f $DIR/project/hello_world.sh $Wdir/project
 /bin/cp -f $DIR/$bootstrap $Wdir/$bootstrap
 /bin/cp -f $DIR/$hostnames $Wdir/$hostnames