Issue with connecting Python OPCUA server with Ignition as a client

Ignition
1

Hi,
I wanted to establish a secure connection between my python opcua server to ignition,
hence i tried connecting my python server with python client hence its working fine but the same when i tried it using ignition it not working and im getting this unable to find valid certification path to requested target error

io.netty.handler.codec.DecoderException: UaException: status=Bad_SecurityChecksFailed, message=sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

Could you please assist me in resolving this issue? your support is highly appreciated.

Regards,
Sri Haran S

2

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3

This is ambiguous. Do you want Ignition to act as the server or the client? (If the latter, a native English speaker would say "from Ignition".)

That said, your error indicates a mismatch between Ignition's security expectations and your python implementation's expectations. This is normal, at first, when one or both sides require certificates, and "accepting" the certificates isn't complete.

There's a section of Ignition's gateway web page where remote certificates can be accepted. How it would be done on the python side is up to you.