Configuring trust just for HTTPS is insufficient for browsers that enforce trust per-port, instead of per-host (such as Firefox). If using a signed SSL certificate is not an option for you, you must configure your browser to trust the unsigned certificate both on port 7473 (HTTPS) and 7687 (bolt). We also recommend these settings for self-signed certificates in 4.0: .client_auth=NONE If you are using Neo4j 4.0 be aware that some defaults have changed. If you are using Neo4j 3.5.0 specifically (and only that version), this can be caused by a bug and this work-around is available.Be aware that bolt connections may not beĮncrypted, but this is a method of side-stepping web browser issues with the untrusted certificate. Set _level=OPTIONAL in your neo4j config.(In chrome, this can be forced by going to and accepting the cert, even though this bolt port isn't really https) Follow directions for your browser to trust the server's certificate for the bolt port, and then refresh the page.Use a signed SSL certificate ( follow these directions to generate certificates).As a result, the browser's security policy fails the WebSocket connection to the bolt port. When users click to accept the exception and permit traffic, thoseīrowsers authorize that action for only the port that Neo4j Browser is running on, not for all ports on that Is used with an untrusted SSL certificate. Symptom: you can connect to Neo4j Browser and enter credentials, but fail to connect with a messageĮxplanation: this is commonly seen with Firefox and some versions of Internet Explorer, when Neo4j Browser ![]() Due to security constraints in your web browser, the reason for the failure is not available to this Neo4j Driver. ServiceUnavailable: WebSocket connection failureĪ similar message you might see is: WebSocket connection failure. You will know that it is available when the logs contain a message that looks like this: 13:34:34.584+0000 INFO Bolt enabled on 127.0.0.1:7687. For a period of time while starting up, and particularly if the database is repairing files or migrating an old store, the bolt endpoint may not be available.
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