Create firewall service for OPC UA
> sudo nano /etc/firewalld/services/opc.xml <?xml version="1.0" encoding="utf-8"?> <service> <short>OPC</short> <description>OPC</description> <port protocol="tcp" port="4840"/> <port protocol="tcp" port="4843"/> <port protocol="tcp" port="51210-51211"/> <port protocol="tcp" port="61210-61211"/> <port protocol="tcp" port="62540-62553"/> </service> > sudo chmod 640 /etc/firewalld/services/opc.xml > sudo firewall-cmd --permanent --add-service=opc
Create firewall service for Node Red
> sudo nano /etc/firewalld/services/nodered.xml <?xml version="1.0" encoding="utf-8"?> <service> <short>nodered</short> <description>Node Red</description> <port protocol="tcp" port="1880"/> </service> > sudo chmod 640 /etc/firewalld/services/nodered.xml > sudo firewall-cmd --permanent --add-service=nodered
> bash <(curl -sL https://raw.githubusercontent.com/node-red/linux-installers/master/deb/update-nodejs-and-nodered) > node-red-start