diff --git a/jupyterhub_config_https.py b/jupyterhub_config_https.py
index 940e715..efed5b4 100644
--- a/jupyterhub_config_https.py
+++ b/jupyterhub_config_https.py
@@ -1,6 +1,6 @@
 c.JupyterHub.bind_url = 'https://:443/'
-
-
+c.JupyterHub.ssl_cert = '/opt/jupyterhub/etc/jupyterhub/ssl-certs/jhubssl.crt'
+c.JupyterHub.ssl_key = '/opt/jupyterhub/etc/jupyterhub/ssl-certs/jhubssl.key'
 
 
 # Configuration file for jupyterhub.
diff --git a/setup_apps_conda.sh b/setup_apps_conda.sh
index e63a3fd..9beb650 100644
--- a/setup_apps_conda.sh
+++ b/setup_apps_conda.sh
@@ -12,6 +12,15 @@ if [ "$EUID" -ne 0 ]
   exit
 fi
 
+CERTIFICATE_HOSTNAME=$1
+
+if [ -z "$CERTIFICATE_HOSTNAME" ] 
+then
+	echo "Please specify hostname for the certificate generation"
+  exit
+fi
+
+
 #apt-get install -y --no-install-recommends libnvinfer7=7.1.3-1+cuda11.0 \
 #    libnvinfer-dev=7.1.3-1+cuda11.0 \
 #    libnvinfer-plugin7=7.1.3-1+cuda11.0
@@ -27,9 +36,7 @@ fi
 #apt-get install -y ipmitool && modprobe ipmi_devintf
 
 apt-get update
-apt-get install -y language-pack-de
-
-apt-get install python3.10-venv
+apt-get install -y language-pack-de python3.10-venv
 
 echo "Install a recent notejs for jupyterhub from nodesource..."
 #src: https://github.com/nodesource/distributions/blob/master/README.md
@@ -53,11 +60,17 @@ cp jupyterhub_conda.service /opt/jupyterhub/etc/systemd/jupyterhub.service
 ln -s /opt/jupyterhub/etc/systemd/jupyterhub.service /etc/systemd/system/jupyterhub.service
 systemctl daemon-reload
 systemctl enable jupyterhub.service
-systemctl start jupyterhub.service
 
-echo "jupyterhub.service status:"
-systemctl status jupyterhub.service
+echo "Generate self signed certificate..."
+mkdir -p /opt/jupyterhub/etc/jupyterhub/ssl-certs
+openssl req -x509 -newkey rsa:4096 -sha256 -days 3650 -nodes \
+  -keyout /opt/jupyterhub/etc/jupyterhub/ssl-certs/jhubssl.key \
+  -out /opt/jupyterhub/etc/jupyterhub/ssl-certs/jhubssl.crt \
+  -subj "/C=DE/ST=NRW/L=na/O=na Systems/OU=Self_Signed/CN=$CERTIFICATE_HOSTNAME" \
+  -addext "subjectAltName=DNS:$CERTIFICATE_HOSTNAME"
 
+#echo "jupyterhub.service status: (opens vim)"
+#systemctl status jupyterhub.service
 
 echo "Install anaconda..."
 #wget -O /tmp/anaconda3.sh https://repo.anaconda.com/archive/Anaconda3-2022.05-Linux-x86_64.sh
@@ -66,7 +79,7 @@ curl https://repo.anaconda.com/pkgs/misc/gpgkeys/anaconda.asc | gpg --dearmor >
 install -o root -g root -m 644 conda.gpg /etc/apt/trusted.gpg.d/
 echo "deb [arch=amd64] https://repo.anaconda.com/pkgs/misc/debrepo/conda stable main" | sudo tee /etc/apt/sources.list.d/conda.list
 apt-get update
-apt-get install conda
+apt-get install -y conda
 
 #symlinking the conda shell setup script to the profile ‘drop in’ folder so that it gets run on login:
 ln -s /opt/conda/etc/profile.d/conda.sh /etc/profile.d/conda.sh
@@ -74,11 +87,12 @@ ln -s /opt/conda/etc/profile.d/conda.sh /etc/profile.d/conda.sh
 mkdir /opt/conda/envs/
 
 /opt/conda/bin/conda create --prefix /opt/conda/envs/python python=3.7 ipykernel
-/opt/conda/envs/python/bin/python -m ipykernel install --prefix /usr/local/ --name 'python' --display-name "Python (default)"
+#/opt/conda/envs/python/bin/python -m ipykernel install --prefix /usr/local/ --name 'python' --display-name "Python (default)"
+/opt/conda/envs/python/bin/python -m ipykernel install --prefix=/opt/jupyterhub/ --name 'python' --display-name "Python (default)"
 
 
 #users have to setup there kernel like this:
-#/path/to/kernel/env/bin/python -m ipykernel install --name 'python-my-env' --display-name "Python My Env"
+#/opt/conda/envs/python/bin/python -m ipykernel install --name 'python-my-env' --display-name "Python My Env"
 
 
 #conda install --yes jupyterhub jupyterlab notebook configurable-http-proxy jupyterlab-git jupyter-server-proxy
@@ -112,6 +126,9 @@ mkdir /opt/conda/envs/
 #systemctl disable iscsid.service
 #systemctl disable open-iscsi.service
 
+echo "Start JupyterHub..."
+systemctl start jupyterhub.service
+
 echo ""
 echo "Setup successfully finished"