diff --git a/conf/jupyterhub_config.py b/conf/jupyterhub_config.py
index 3a26dff..9377df4 100644
--- a/conf/jupyterhub_config.py
+++ b/conf/jupyterhub_config.py
@@ -205,6 +205,8 @@ c.JupyterHub.bind_url = 'http://:__PORT____PATH__'
 #  .. versionadded:: 0.9
 c.JupyterHub.hub_bind_url = 'http://127.0.0.1:__PORT_HUB__'
 
+c.ConfigurableHTTPProxy.api_url = 'http://127.0.0.1:__PORT_HTTP_PROXY__'
+
 ## The ip or hostname for proxies and spawners to use for connecting to the Hub.
 #  
 #  Use when the bind address (`hub_ip`) is 0.0.0.0 or otherwise different from
diff --git a/conf/systemd.service.default b/conf/systemd.service.default
index c8063f7..0b35399 100644
--- a/conf/systemd.service.default
+++ b/conf/systemd.service.default
@@ -4,7 +4,7 @@ After=syslog.target network.target
 
 [Service]
 Environment="PATH=__FINALPATH__/bin/:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
-ExecStart=/bin/sh -c "__FINALPATH__/bin/jupyterhub -f __CONFIGPATH__/jupyterhub_config.py 2&>> /var/log/__APP__.log"
+ExecStart=__FINALPATH__/bin/jupyterhub -f __CONFIGPATH__/jupyterhub_config.py 2&>> /var/log/__APP__.log
 Restart=always
 RestartSec=10
 WorkingDirectory=__FINALPATH__
diff --git a/scripts/_common.sh b/scripts/_common.sh
index cebe3a8..cbdc2cd 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -47,6 +47,7 @@ config_jupyterlab() {
 	ynh_replace_string "__PATH__" "${path_url%/}" $jupyterlab_conf_path
 	ynh_replace_string "__PORT__" "$port" $jupyterlab_conf_path
 	ynh_replace_string "__PORT_HUB__" "$port_hub" $jupyterlab_conf_path
+	ynh_replace_string "__PORT_HTTP_PROXY__" "$port_http_proxy" $jupyterlab_conf_path
 	ynh_replace_string "__FINAL_PATH__" "$final_path" $jupyterlab_conf_path
 	ynh_replace_string "__ADMIN__" "$admin" $jupyterlab_conf_path
 
diff --git a/scripts/change_url b/scripts/change_url
index 832c559..6023277 100644
--- a/scripts/change_url
+++ b/scripts/change_url
@@ -34,6 +34,7 @@ app=$YNH_APP_INSTANCE_NAME
 admin=$(ynh_app_setting_get "$app" admin)
 port=$(ynh_app_setting_get "$app" port)
 port_hub=$(ynh_app_setting_get "$app" port_hub)
+port_http_proxy=$(ynh_app_setting_get "$app" port_http_proxy)
 
 #=================================================
 # CHECK PATHS SYNTAX
@@ -109,4 +110,6 @@ systemctl reload nginx
 # START SERVICE
 #=================================================
 
-ynh_systemd_action -n $app -a start -l "JupyterHub is now running at" -p /var/log/$app.log
\ No newline at end of file
+systemctl start $app
+
+ynh_systemd_action -n $app -a start -l "JupyterHub is now running at" -p "systemd"
\ No newline at end of file
diff --git a/scripts/install b/scripts/install
index 9d181d5..49d8605 100644
--- a/scripts/install
+++ b/scripts/install
@@ -63,12 +63,15 @@ ynh_app_setting_set $app enable_terminal $is_public
 
 # Find free ports
 port=$(ynh_find_port 8080)
-port_hub=$(ynh_find_port 8081)
+port_hub=$(ynh_find_port $(($port + 1)))
+port_http_proxy=$(ynh_find_port $(($port_hub + 1)))
 
 yunohost firewall allow --no-upnp TCP $port 2>&1
 yunohost firewall allow --no-upnp TCP $port_hub 2>&1
+yunohost firewall allow --no-upnp TCP $port_http_proxy 2>&1
 ynh_app_setting_set $app port $port
 ynh_app_setting_set $app port_hub $port_hub
+ynh_app_setting_set $app port_http_proxy $port_http_proxy
 
 #=================================================
 # NGINX CONFIGURATION
@@ -141,4 +144,4 @@ yunohost service add $app --log "/var/log/$app.log"
 # START SERVICE
 #=================================================
 
-ynh_systemd_action -n $app -a start -l "JupyterHub is now running at" -p /var/log/$app.log
\ No newline at end of file
+ynh_systemd_action -n $app -a start -l "JupyterHub is now running at" -p "systemd"
\ No newline at end of file
diff --git a/scripts/remove b/scripts/remove
index 075c5d2..54f70d1 100644
--- a/scripts/remove
+++ b/scripts/remove
@@ -21,6 +21,7 @@ app=$YNH_APP_INSTANCE_NAME
 domain=$(ynh_app_setting_get "$app" domain)
 port=$(ynh_app_setting_get "$app" port)
 port_hub=$(ynh_app_setting_get "$app" port_hub)
+port_http_proxy=$(ynh_app_setting_get "$app" port_http_proxy)
 
 #=================================================
 # STANDARD REMOVE
@@ -73,6 +74,11 @@ then
 	echo "Close port $port_hub" >&2
 	yunohost firewall disallow TCP $port_hub 2>&1
 fi
+if yunohost firewall list | grep -q "\- $port_http_proxy$"
+then
+	echo "Close port $port_http_proxy" >&2
+	yunohost firewall disallow TCP $port_http_proxy 2>&1
+fi
 
 #=================================================
 # REMOVE NGINX CONFIGURATION