# Missing authentication credentials for REST request **URL:** \ **Category:** Kibana\ **Created:** [March 30, 2022, 8:24pm UTC](https://discuss.elastic.co/t/missing-authentication-credentials-for-rest-request/301144 "2022-03-30T20:24:55Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Kishan\_Kini](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kishan_kini/32/103740_2.png) [@Kishan\_Kini](https://discuss.elastic.co/u/Kishan_Kini)\ **Post date:** [March 30, 2022, 8:24pm UTC](https://discuss.elastic.co/t/missing-authentication-credentials-for-rest-request/301144/1 "2022-03-30T20:24:55Z")
[ERROR][Elasticsearch-service] Unable to retrieve version information from Elasticsearch nodes. security\_exception: [security\_exception] Reason: missing authentication credentials for REST request [/\_nodes?filter\_path=nodes._.version%2Cnodes._.http.publish\_address%2Cnodes.\*.ip] I got this error when i tried to open kibana server. Without this, it shows Kibana server not ready. I did try to change the username and password in kibana.yml file but to no avail. I'm new to this topic. I would appreciate your help. ---
**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:** [March 30, 2022, 11:52pm UTC](https://discuss.elastic.co/t/missing-authentication-credentials-for-rest-request/301144/2 "2022-03-30T23:52:13Z")
Welcome to our community! 😃 Can you curl your Elasticsearch instance with the details you have used in Kibana? ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [April 27, 2022, 11:52pm UTC](https://discuss.elastic.co/t/missing-authentication-credentials-for-rest-request/301144/3 "2022-04-27T23:52:27Z")
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