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An error occurred while sending the request. The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel. The remote certificate is invalid according to the validation procedure.

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  • 1 year later...

This could occur for a number of reasons, including:

The certificate is no longer valid or has expired.
The certificate was either issued by an unreliable Certificate Authority (CA) or is self-signed.
The hostname on the certificate and the server do not match.
The certificate chain is either misconfigured or lacking.

To resolve this issue, you can try the following steps:

Check Certificate Validity:- Verify that the Tibco EMS server's SSL certificate is active and hasn't expired.

Verify Certificate Chain:- Make sure the certificate chain is set up correctly and is complete. If appropriate, intermediary certificates are included in this.

Check Hostname:- Ensure that the hostname in the SSL certificate corresponds to the Tibco EMS server's hostname. You might need to use the proper hostname or get a certificate with the correct hostname if they don't match.

Truststore Configuration:- Make sure the root and intermediate certificates required to validate the server's SSL certificate are present in the truststore (CA certificate) that your application has established.

Debugging SSL Issues:- To enable debugging output, set TIBCO.EMS.ConnectionProperty.SSL_TRACE to "true" in your SSL parameters. This can shed further light on the SSL handshake procedure and assist in determining the problem's underlying cause.

Ignore SSL Validation:- You can briefly avoid SSL validation if you're in a development environment or if you have confidence in the server. It is not advised to utilize this in production though, as it puts your application at risk for security issues.

Here's how you can temporarily ignore SSL validation (for debugging purposes only):

Note that you should not ignore SSL validation in production code; instead, you should use it as a temporary workaround. It's crucial to address the underlying SSL certificate validation issue for secure communication. For secure communication, it is recommended that you use proper SSL certificate validation, if possible.

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This error typically occurs when the client is unable to establish a secure connection with the server due to issues with SSL/TLS certificate validation. Here are some steps you can take to troubleshoot and potentially resolve this issue:

  1. Check Certificate Expiration: Ensure that the SSL/TLS certificate on the server has not expired. If it has, renew the certificate.

  2. Verify Certificate Chain: Ensure that the SSL/TLS certificate chain is properly configured and all intermediate certificates are installed correctly on the server.

  3. Check System Date and Time: Ensure that the system date and time on both the client and server machines are set correctly. An incorrect date or time can cause SSL/TLS certificate validation to fail.

  4. Check Firewall and Proxy Settings: Make sure that your firewall or proxy settings are not blocking the connection. Sometimes, firewalls or proxies may intercept SSL/TLS traffic, leading to certificate validation issues.

  5. Update Trusted Root Certificates: Ensure that the client machine has up-to-date trusted root certificates installed. You can update these certificates through your operating system's update mechanism.

  6. Inspect Certificate Errors: If possible, inspect the SSL/TLS certificate presented by the server to determine the specific validation error. This can provide insights into the root cause of the issue.

  7. Contact Server Administrator: If you're not the administrator of the server, contact the administrator to verify the SSL/TLS configuration and ensure that the correct certificate is being used.

  8. Consider Security Protocols and Cipher Suites: Ensure that both the client and server support compatible SSL/TLS versions and cipher suites. In some cases, mismatched configurations can lead to certificate validation failures.

By systematically checking these potential issues, you can often identify and resolve the SSL/TLS certificate validation problem. If you're still unable to resolve the issue, you may need to consult with a security expert or your organization's IT department for further assistance.

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