diff --git a/scripts/sh/deploy_node_exporter.sh b/scripts/sh/deploy_node_exporter.sh
index 52dbc7f..3604d91 100755
--- a/scripts/sh/deploy_node_exporter.sh
+++ b/scripts/sh/deploy_node_exporter.sh
@@ -27,6 +27,13 @@ ExecStart=/opt/node_exporter/node_exporter --web.listen-address=":9200"
 WantedBy=multi-user.target
 EOF
 systemctl enable --now node_exporter
+if [ command -v firewall-cmd &> /dev/null ] 
+then
+firewall-cmd --zone=internal --add-port=9200/tcp --permanent
+firewall-cmd --reload
+else
+echo "No firewalld, skipping."
+fi
 echo "OK"
 else
 echo "Found traces of an existing installation. Aborted."