# Kibana (x-pack)missing authentication token for REST request
**URL:** https://discuss.elastic.co/t/kibana-x-pack-missing-authentication-token-for-rest-request/108050
**Category:** Kibana
**Created:** [November 17, 2017, 2:32am UTC](https://discuss.elastic.co/t/kibana-x-pack-missing-authentication-token-for-rest-request/108050 "2017-11-17T02:32:42Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@xiaoxinba](https://discuss.elastic.co/u/xiaoxinba)
#### Post date: [November 17, 2017, 2:32am UTC](https://discuss.elastic.co/t/kibana-x-pack-missing-authentication-token-for-rest-request/108050/1 "2017-11-17T02:32:42Z")
I add a proxy in between Kibana and Elasticsearch,then
> {"type":"log","@timestamp":"2017-09-20T21:27:06Z","tags": `["license","warning","xpack"],"pid":38255,"message":"License information could not be obtained from Elasticsearch. [security_exception] missing authentication token for REST request [/_xpack], with { header={ WWW- Authenticate=\"Basic realm=\\\"security\\\" charset=\\\"UTF-8\\\"\" } } :: {\"path\":\"/_xpack\",\"statusCode\":401,\"response\":\"{\\\"error\\\":{\\\"root_cause\\\": [{\\\"type\\\":\\\"security_exception\\\",\\\"reason\\\":\\\"missing authentication token for REST request [/_xpack]\\\",\\\"header\\\":{\\\"WWW-Authenticate\\\":\\\"Basic realm=\\\\\\\"security\\\\\\\" charset=\\\\\\\"UTF- 8\\\\\\\"\\\"}}],\\\"type\\\":\\\"security_exception\\\",\\\"reason\\\":\\\"missing authentication token for REST request [/_xpack]\\\",\\\"header\\\":{\\\"WWW-Authenticate\\\":\\\"Basic realm=\\\\\\\"security\\\\\\\" charset=\\\\\\\"UTF- 8\\\\\\\"\\\"}},\\\"status\\\":401}\",\"wwwAuthenticateDirective\":\"Basic realm=\\\"security\\\" charset=\\\"UTF- 8\\\"\"}"}`
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### Author:  [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [November 17, 2017, 3:16am UTC](https://discuss.elastic.co/t/kibana-x-pack-missing-authentication-token-for-rest-request/108050/2 "2017-11-17T03:16:16Z")
What version are you on?
What proxy are you using?
What license did you apply to your cluster?
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### Author:  [@xiaoxinba](https://discuss.elastic.co/u/xiaoxinba)
#### Post date: [November 17, 2017, 3:25am UTC](https://discuss.elastic.co/t/kibana-x-pack-missing-authentication-token-for-rest-request/108050/3 "2017-11-17T03:25:22Z")
kibana es version:5.2.1
proxy: kibana-own-home( intercept request from kibana to es,save username to session)
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [December 15, 2017, 3:25am UTC](https://discuss.elastic.co/t/kibana-x-pack-missing-authentication-token-for-rest-request/108050/4 "2017-12-15T03:25:38Z")
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