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@savan

I cannot help you on your OPC question. But I'm going to advise you to secure your Node-RED instance right now.

You have exposed it to the internet with no security applied. If it has access to your devices, then you have exposed them to the internet as well.

You have blurred the IP address of your instance in the address bar, your ip address is still visible in that screenshot in the chrome tab.

Please read this post: ⚠️ Malware Infecting unsecured Node-RED servers

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