# Kibana server is not ready yet - Unable to retrieve version information from Elasticsearch nodes. security\_exception

**URL:** <https://discuss.elastic.co/t/kibana-server-is-not-ready-yet-unable-to-retrieve-version-information-from-elasticsearch-nodes-security-exception/310757>\
**Category:** Kibana\
**Created:** [July 27, 2022, 1:54pm UTC](https://discuss.elastic.co/t/kibana-server-is-not-ready-yet-unable-to-retrieve-version-information-from-elasticsearch-nodes-security-exception/310757 "2022-07-27T13:54:58Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![ShaheerBadar](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/shaheerbadar/32/108910_2.png) [@ShaheerBadar](https://discuss.elastic.co/u/ShaheerBadar)\
**Post date:** [July 27, 2022, 1:54pm UTC](https://discuss.elastic.co/t/kibana-server-is-not-ready-yet-unable-to-retrieve-version-information-from-elasticsearch-nodes-security-exception/310757/1 "2022-07-27T13:54:58Z")

</div>

Hi All,

I am new in ELK stack. I have installed elasticsearch & Kibana version 8.3.2 on RedHat Linux 8.6. Elasticsearch configured properly and running fine. But while starting up Kibana we see " **Unable to retrieve version information from Elasticsearch nodes. security\_exception**" error and when we try to access Kibana via browser we see " **Kibana server is not ready yet**" error.  
Kindly help to resolve the error.

**Error Info from Kibana.log file**

```auto
{"ecs":{"version":"8.0.0"},"@timestamp":"2022-07-27T05:57:16.542-07:00","message":"Installing common resources shared between all indices","log":{"level":"INFO","logger":"plugins.ruleRegistry"},"process":{"pid":761710},"trace":{"id":"2cfce34e4a7f16052d14653d5889eb13"},"transaction":{"id":"75946ccf9f95b8d0"}}
{"ecs":{"version":"8.0.0"},"@timestamp":"2022-07-27T05:57:17.002-07:00","message":"Chromium sandbox provides an additional layer of protection, but is not supported for Linux Red Hat Linux 8.6 OS. Automatically setting 'xpack.screenshotting.browser.chromium.disableSandbox: true'.","log":{"level":"WARN","logger":"plugins.screenshotting.config"},"process":{"pid":761710},"trace":{"id":"2cfce34e4a7f16052d14653d5889eb13"},"transaction":{"id":"75946ccf9f95b8d0"}}
{"ecs":{"version":"8.0.0"},"@timestamp":"2022-07-27T05:57:17.121-07:00","message":"Unable to retrieve version information from Elasticsearch nodes. security_exception: [security_exception] Reason: unable to authenticate user [kibana] for REST request [/_nodes?filter_path=nodes.*.version%2Cnodes.*.http.publish_address%2Cnodes.*.ip]","log":{"level":"ERROR","logger":"elasticsearch-service"},"process":{"pid":761710},"trace":{"id":"2cfce34e4a7f16052d14653d5889eb13"},"transaction":{"id":"75946ccf9f95b8d0"}}
{"ecs":{"version":"8.0.0"},"@timestamp":"2022-07-27T05:57:17.498-07:00","message":"Browser executable: /usr/share/kibana/x-pack/plugins/screenshotting/chromium/headless_shell-linux_x64/headless_shell","log":{"level":"INFO","logger":"plugins.screenshotting.chromium"},"process":{"pid":761710},"trace":{"id":"2cfce34e4a7f16052d14653d5889eb13"},"transaction":{"id":"75946ccf9f95b8d0"}}

```

**ElasticSearch Status**

 ![image](https://us1.discourse-cdn.com/elastic/original/3X/4/8/48da0413a908f55021196520a5ea955d50040ba5.jpeg)

**Properties values in Kibana.yml**

```auto
server.port: 5601
server.host: "10.159.205.189"
elasticsearch.ssl.verificationMode: "none"
elasticsearch.hosts: ["https://10.159.205.189:9200"]
elasticsearch.username: "kibana"
elasticsearch.password: "p_e1ErsA9Rhb5DXkYIc"

```

---

<div class="post-metadata">

**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [July 27, 2022, 10:34pm UTC](https://discuss.elastic.co/t/kibana-server-is-not-ready-yet-unable-to-retrieve-version-information-from-elasticsearch-nodes-security-exception/310757/2 "2022-07-27T22:34:44Z")

</div>

Welcome to our community! 😃

Please don't post pictures of text, logs or code. They are difficult to read, impossible to search and replicate (if it's code), and some people may not be even able to see them.  
Please also format your code/logs/config using the `</>` button, or markdown style back ticks. It helps to make things easy to read which helps us help you

> [@ShaheerBadar](#):
>
> elasticsearch.username: "kibana"  
> elasticsearch.password: "p\_e1ErsA9Rhb5DXkYIc"

Do those details work if you use it to make a curl to Elasticsearch?

---

<div class="post-metadata">

**Author:** ![ShaheerBadar](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/shaheerbadar/32/108910_2.png) [@ShaheerBadar](https://discuss.elastic.co/u/ShaheerBadar)\
**Post date:** [July 28, 2022, 2:07am UTC](https://discuss.elastic.co/t/kibana-server-is-not-ready-yet-unable-to-retrieve-version-information-from-elasticsearch-nodes-security-exception/310757/3 "2022-07-28T02:07:02Z")

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Hi Warkolm,

Thanks for the response.  
Curl to Elasticsearch is throwing same error. Please check following

```auto
curl --cacert /etc/elasticsearch/certs/http_ca.crt -u kibana https://10.159.205.189:9200
Enter host password for user 'kibana':
{"error":{"root_cause":[{"type":"security_exception","reason":"unable to authenticate user [kibana] for REST request [/]","header":{"WWW-Authenticate":["Basic realm=\"security\" charset=\"UTF-8\"","Bearer realm=\"security\"","ApiKey"]}}],"type":"security_exception","reason":"unable to authenticate user [kibana] for REST request [/]","header":{"WWW-Authenticate":["Basic realm=\"security\" charset=\"UTF-8\"","Bearer realm=\"security\"","ApiKey"]}},"status":401}

```

---

<div class="post-metadata">

**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [July 28, 2022, 2:31am UTC](https://discuss.elastic.co/t/kibana-server-is-not-ready-yet-unable-to-retrieve-version-information-from-elasticsearch-nodes-security-exception/310757/4 "2022-07-28T02:31:08Z")

</div>

Then that's the best place to resolve your issue 😉

---

<div class="post-metadata">

**Author:** ![ShaheerBadar](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/shaheerbadar/32/108910_2.png) [@ShaheerBadar](https://discuss.elastic.co/u/ShaheerBadar)\
**Post date:** [July 28, 2022, 3:12am UTC](https://discuss.elastic.co/t/kibana-server-is-not-ready-yet-unable-to-retrieve-version-information-from-elasticsearch-nodes-security-exception/310757/5 "2022-07-28T03:12:39Z")

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Hi Warkolm,

Please help in advising next step.

Thanks,  
Shaheer Badar

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [August 25, 2022, 3:12am UTC](https://discuss.elastic.co/t/kibana-server-is-not-ready-yet-unable-to-retrieve-version-information-from-elasticsearch-nodes-security-exception/310757/6 "2022-08-25T03:12:48Z")

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