> For the complete documentation index, see [llms.txt](https://docs.sealights.io/knowledgebase/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sealights.io/knowledgebase/setup-and-configuration/troubleshooting-faq/java/weblogic-failed-hostname-verification.md).

# Weblogic: Failed Hostname Verification

### Problem <a href="#problem" id="problem"></a>

When using the SeaLights test listener as a javaagent in Weblogic, it fails to load with a 'failed hostname verification check' certificate issue.

{% code overflow="wrap" lineNumbers="true" %}

```
... <Certificate chain received from hostname - xxx.xxx.xxx.xxx --> app.sealights.co failed hostname verification check. Certificate contained *.sealights.co but check expected app.sealights.co>
```

{% endcode %}

### Solution <a href="#solution" id="solution"></a>

As the SeaLights certificate is a general certificate for `*.sealights.co` servers, if Weblogic is set up to perform a hostname verification then this will fail.\
Therefore you should turn off this verification in Weblogic

You can turn off the hostname verification by going to:

* The Administration Console
* Click on **Lock & Edit**
* Expand **Environment** and select **Servers**
* Select the server
* Go to **Configuration**→**SSL**→**Advanced**
* Under **Hostname Verification** select **none**

### Related articles <a href="#related-articles" id="related-articles"></a>

* [Pivotal Cloud Foundry (PCF) Support](/knowledgebase/setup-and-configuration/sealights-agents-and-plugins/java-agent/pivotal-cloud-foundry-pcf-support.md) (Java)
* [NodeJS - JavaScript heap out of memory](/knowledgebase/setup-and-configuration/troubleshooting-faq/node-javascript/nodejs-javascript-heap-out-of-memory.md)
* [Testing Frameworks Integration](/knowledgebase/setup-and-configuration/integrations/testing-frameworks-integration.md)
* [Installing the Coverage Listener as a JVM Java Agent](/knowledgebase/setup-and-configuration/sealights-agents-and-plugins/java-agent/default-usage-cli/installing-the-coverage-listener-as-a-jvm-java-agent.md) (Java)
* [Legacy CD Agent for Java Application](/knowledgebase/setup-and-configuration/sealights-agents-and-plugins/cd-agent/cd-agent-for-java-application.md)


---

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