diff --git a/demo2-instance-with-init-script.py b/demo2-instance-with-init-script.py
index 2af17cf..b22c87e 100644
--- a/demo2-instance-with-init-script.py
+++ b/demo2-instance-with-init-script.py
@@ -1,13 +1,22 @@
 import getpass
 
-import libcloud.security
 import os
 from libcloud.compute.providers import get_driver
 from libcloud.compute.types import Provider
 
-auth_url = 'https://192.168.72.40:5000'
+# Please use 1-25 for X in username, project etc., as coordinated in the lab sessions
+
+# web service endpoint of the private cloud infrastructure
+auth_url = 'https://private-cloud2.informatik.hs-fulda.de:5000'
+# your username in OpenStack
+auth_username = 'CloudCompX'
+# your project in OpenStack
+project_name = 'CloudCompGrpX'
+
+# default region
 region_name = 'RegionOne'
-domain_name = "hsfulda"
+# domain to use, "default" for local accounts, "hsfulda" for LDAP of DVZ, e.g., using fdaiXXXX as auth_username
+domain_name = "default"
 
 ubuntu_image_name = "Ubuntu 14.04 - Trusty Tahr - 64-bit - Cloud Based Image"
 
@@ -26,20 +35,11 @@ def main():
     #
     ###########################################################################
 
-    if "OS_PROJECT_NAME" in os.environ:
-        project_name = os.environ["OS_PROJECT_NAME"]
-    else:
-        project_name = input("Enter your OpenStack project:")
-
-    if "OS_USERNAME" in os.environ:
-        auth_username = os.environ["OS_USERNAME"]
-    else:
-        auth_username = input("Enter your OpenStack username:")
-
     if "OS_PASSWORD" in os.environ:
         auth_password = os.environ["OS_PASSWORD"]
     else:
         auth_password = getpass.getpass("Enter your OpenStack password:")
+    # auth_password = "demo"
 
     ###########################################################################
     #
@@ -47,8 +47,6 @@ def main():
     #
     ###########################################################################
 
-    libcloud.security.VERIFY_SSL_CERT = False
-
     provider = get_driver(Provider.OPENSTACK)
     conn = provider(auth_username,
                     auth_password,
diff --git a/demo3-microservice.py b/demo3-microservice.py
index f19a443..193cc10 100644
--- a/demo3-microservice.py
+++ b/demo3-microservice.py
@@ -1,7 +1,6 @@
 import getpass
 import os
 
-import libcloud.security
 from libcloud.compute.providers import get_driver
 from libcloud.compute.types import Provider
 
@@ -9,10 +8,19 @@ from libcloud.compute.types import Provider
 #   services: nova, glance, neutron
 #   resources: 2 instances, 2 floating ips (1 keypair, 2 security groups)
 
-# HS-Fulda Private Cloud
-auth_url = 'https://192.168.72.40:5000'
+# Please use 1-25 for X in username, project etc., as coordinated in the lab sessions
+
+# web service endpoint of the private cloud infrastructure
+auth_url = 'https://private-cloud2.informatik.hs-fulda.de:5000'
+# your username in OpenStack
+auth_username = 'CloudCompX'
+# your project in OpenStack
+project_name = 'CloudCompGrpX'
+
+# default region
 region_name = 'RegionOne'
-domain_name = "hsfulda"
+# domain to use, "default" for local accounts, "hsfulda" for LDAP of DVZ, e.g., using fdaiXXXX as auth_username
+domain_name = "default"
 
 ubuntu_image_name = "Ubuntu 14.04 - Trusty Tahr - 64-bit - Cloud Based Image"
 
@@ -31,16 +39,6 @@ def main():
     #
     ###########################################################################
 
-    if "OS_PROJECT_NAME" in os.environ:
-        project_name = os.environ["OS_PROJECT_NAME"]
-    else:
-        project_name = input("Enter your OpenStack project:")
-
-    if "OS_USERNAME" in os.environ:
-        auth_username = os.environ["OS_USERNAME"]
-    else:
-        auth_username = input("Enter your OpenStack username:")
-
     if "OS_PASSWORD" in os.environ:
         auth_password = os.environ["OS_PASSWORD"]
     else:
@@ -52,8 +50,6 @@ def main():
     #
     ###########################################################################
 
-    libcloud.security.VERIFY_SSL_CERT = False
-
     provider = get_driver(Provider.OPENSTACK)
     conn = provider(auth_username,
                     auth_password,
diff --git a/demo4-scale-out.py b/demo4-scale-out.py
index af36f1f..53b61e7 100644
--- a/demo4-scale-out.py
+++ b/demo4-scale-out.py
@@ -10,10 +10,19 @@ from libcloud.compute.types import Provider
 #   services: nova, glance, neutron
 #   resources: 2 instances (m1.small), 2 floating ips (1 keypair, 2 security groups)
 
-# HS-Fulda Private Cloud
-auth_url = 'https://192.168.72.40:5000'
+# Please use 1-25 for X in username, project etc., as coordinated in the lab sessions
+
+# web service endpoint of the private cloud infrastructure
+auth_url = 'https://private-cloud2.informatik.hs-fulda.de:5000'
+# your username in OpenStack
+auth_username = 'CloudCompX'
+# your project in OpenStack
+project_name = 'CloudCompGrpX'
+
+# default region
 region_name = 'RegionOne'
-domain_name = "hsfulda"
+# domain to use, "default" for local accounts, "hsfulda" for LDAP of DVZ, e.g., using fdaiXXXX as auth_username
+domain_name = "default"
 
 ubuntu_image_name = "Ubuntu 14.04 - Trusty Tahr - 64-bit - Cloud Based Image"
 
@@ -32,16 +41,6 @@ def main():
     #
     ###########################################################################
 
-    if "OS_PROJECT_NAME" in os.environ:
-        project_name = os.environ["OS_PROJECT_NAME"]
-    else:
-        project_name = input("Enter your OpenStack project:")
-
-    if "OS_USERNAME" in os.environ:
-        auth_username = os.environ["OS_USERNAME"]
-    else:
-        auth_username = input("Enter your OpenStack username:")
-
     if "OS_PASSWORD" in os.environ:
         auth_password = os.environ["OS_PASSWORD"]
     else: