MongoDB SSL certificate_verify_failed

As a programmer, you may encounter the error "certificate_verify_failed" when trying to connect to MongoDB over SSL. This error occurs when the SSL certificate presented by the MongoDB server cannot be validated by the SSL certificate chain on the client's side.

Causes of certificate_verify_failed error

There are several reasons why the "certificate_verify_failed" error can occur when connecting to MongoDB over SSL:

• The SSL certificate might be invalid or expired on the MongoDB server side.
• The SSL certificate chain on the client side might be incomplete or invalid.
• The hostname or IP address in the SSL certificate does not match the hostname or IP address used by the client to connect to the MongoDB server.
• The SSL certificate has been signed by an unknown certificate authority (CA) or a self-signed certificate.

Solutions to certificate_verify_failed error

Here are some solutions to fix the "certificate_verify_failed" error when connecting to MongoDB over SSL:

1. Validate the SSL certificate

Check if the SSL certificate presented by the MongoDB server is valid and has not expired. You can use an SSL certificate validation tool to validate the certificate.

2. Configure the SSL certificate chain on the client side

Ensure that the SSL certificate chain on the client side is complete and valid. You can download the required certificates from the CA's website and add them to the client's SSL certificate store.

3. Check hostname or IP address

Verify that the hostname or IP address used by the client to connect to the MongoDB server matches the hostname or IP address in the SSL certificate presented by the MongoDB server.

4. Trust the SSL certificate

If the SSL certificate has been signed by an unknown CA or is self-signed, you can add it to the client's SSL certificate store to create trust.

Conclusion

The "certificate_verify_failed" error when connecting to MongoDB over SSL can be caused by various reasons, including an invalid or expired SSL certificate, incomplete or invalid SSL certificate chain on the client side, hostname/IP address mismatch, or an unknown or self-signed SSL certificate. The solutions involve validating the SSL certificate, configuring the SSL certificate chain, verifying the hostname/IP address, and creating trust for the SSL certificate.