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20 lines
1020 B
Markdown
20 lines
1020 B
Markdown
# Parameter `ValidateServerCert`
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Default Value: `true`
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!!! Warning
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This is an **Expert Parameter**! Only change it if you understand what it does!
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Enable or disable the validation of the server certificate.
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If `enabled (true)`, the certificate sent by the server is validated using the configured [Root CA Certificate file](https://jomjol.github.io/AI-on-the-edge-device-docs/Parameters/#parameter-cacert).<br>
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The server name in [uri](https://jomjol.github.io/AI-on-the-edge-device-docs/Parameters/#parameter-uri) is compared with the CN field of the server certificate.<br>
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A connection will be only established if these match.<br>
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It ensures the origin of the server.
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If `disabled (false)`, only the validity of the certificate (e.g. expiry) is checked, not the origin (CN field).<br>
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If you use public brokers, make sure to set this parameter to "enabled", to avoid potential MITM-Attacks!
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!!! Note
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This also means that you might have to change the protocol and port in to `mqtts://example.com:8883`!
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