# FATAL Error: \[config validation of \[server\].host\]: value must be a valid hostname (see RFC 1123) **URL:** \ **Category:** Kibana\ **Tags:** docker\ **Created:** [July 19, 2022, 1:43pm UTC](https://discuss.elastic.co/t/fatal-error-config-validation-of-server-host-value-must-be-a-valid-hostname-see-rfc-1123/310029 "2022-07-19T13:43:33Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![kosmylo](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kosmylo/32/99660_2.png) [@kosmylo](https://discuss.elastic.co/u/kosmylo)\ **Post date:** [July 19, 2022, 1:43pm UTC](https://discuss.elastic.co/t/fatal-error-config-validation-of-server-host-value-must-be-a-valid-hostname-see-rfc-1123/310029/1 "2022-07-19T13:43:33Z")
I am trying to install ELK stack locally as a part of a `docker-compose` as follows: ```auto version: '3.2' services: elasticsearch: container_name: elasticsearch build: context: elasticsearch/ args: ELK_VERSION: $ELK_VERSION volumes: - type: bind source: ./elasticsearch/config/elasticsearch.yml target: /usr/share/elasticsearch/config/elasticsearch.yml read_only: true - type: volume source: elasticsearch target: /usr/share/elasticsearch/data ports: - "9200:9200" - "9300:9300" environment: ES_JAVA_OPTS: "-Xmx256m -Xms256m" ELASTIC_PASSWORD: changeme links: - kibana networks: - elk logstash: container_name: logstash build: context: logstash/ args: ELK_VERSION: $ELK_VERSION volumes: - type: bind source: ./logstash/config/logstash.yml target: /usr/share/logstash/config/logstash.yml read_only: true - type: bind source: ./logstash/pipeline target: /usr/share/logstash/pipeline read_only: true ports: - "5000:5000" - "9600:9600" expose: - "5044" networks: - elk depends_on: - elasticsearch kibana: container_name: kibana build: context: kibana/ args: ELK_VERSION: $ELK_VERSION volumes: - type: bind source: ./kibana/config/kibana.yml target: /usr/share/kibana/config/kibana.yml read_only: true ports: - "5601:5601" networks: - elk app: container_name: app build : ./app volumes: - ./app/:/usr/src/app - /usr/src/app/node_modules/ # make node_module empty in container command: npm start ports: - "3000:3000" networks: - elk nginx: container_name: nginx build: ./nginx volumes: - ./nginx/config:/etc/nginx/conf.d - ./nginx/log:/var/log/nginx ports: - "80:80" - "443:443" links: - app:app depends_on: - app networks: - elk filebeat: container_name: filebeat build: ./filebeat entrypoint: "filebeat -e -strict.perms=false" volumes: - ./filebeat/config/filebeat.yml:/usr/share/filebeat/filebeat.yml - ./nginx/log:/var/log/nginx networks: - elk depends_on: - app - nginx - logstash - elasticsearch - kibana links: - logstash networks: elk: driver: bridge volumes: elasticsearch: ``` The configuration of kibana is the following: ```auto --- ## Default Kibana configuration from Kibana base image. ## https://github.com/elastic/kibana/blob/master/src/dev/build/tasks/os_packages/docker_generator/templates/kibana_yml.template.js # server.name: kibana server.host: "0" elasticsearch.hosts: ["http://elasticsearch:9200"] xpack.monitoring.ui.container.elasticsearch.enabled: true ## X-Pack security credentials # elasticsearch.username: elastic elasticsearch.password: changeme ``` Although all the other services of `docker-compose` are up and running kibana goes down and I get the following logs: ```auto [2022-07-19T13:15:45.595+00:00][FATAL][root] Error: [config validation of [server].host]: value must be a valid hostname (see RFC 1123). at ObjectType.validate (/usr/share/kibana/node_modules/@kbn/config-schema/target_node/types/type.js:95:13) at ConfigService.validateAtPath (/usr/share/kibana/node_modules/@kbn/config/target_node/config_service.js:234:19) at /usr/share/kibana/node_modules/@kbn/config/target_node/config_service.js:242:169 at /usr/share/kibana/node_modules/rxjs/dist/cjs/internal/operators/map.js:10:37 at OperatorSubscriber._this._next (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/operators/OperatorSubscriber.js:33:21) at OperatorSubscriber.Subscriber.next (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/Subscriber.js:51:18) at /usr/share/kibana/node_modules/rxjs/dist/cjs/internal/operators/distinctUntilChanged.js:18:28 at OperatorSubscriber._this._next (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/operators/OperatorSubscriber.js:33:21) at OperatorSubscriber.Subscriber.next (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/Subscriber.js:51:18) at /usr/share/kibana/node_modules/rxjs/dist/cjs/internal/operators/map.js:10:24 at OperatorSubscriber._this._next (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/operators/OperatorSubscriber.js:33:21) at OperatorSubscriber.Subscriber.next (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/Subscriber.js:51:18) at ReplaySubject._subscribe (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/ReplaySubject.js:54:24) at ReplaySubject.Observable._trySubscribe (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/Observable.js:41:25) at ReplaySubject.Subject._trySubscribe (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/Subject.js:123:47) at /usr/share/kibana/node_modules/rxjs/dist/cjs/internal/Observable.js:35:31 at Object.errorContext (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/util/errorContext.js:22:9) at ReplaySubject.Observable.subscribe (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/Observable.js:26:24) at /usr/share/kibana/node_modules/rxjs/dist/cjs/internal/operators/share.js:66:18 at OperatorSubscriber. (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/util/lift.js:14:28) at /usr/share/kibana/node_modules/rxjs/dist/cjs/internal/Observable.js:30:30 at Object.errorContext (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/util/errorContext.js:22:9) at Observable.subscribe (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/Observable.js:26:24) at /usr/share/kibana/node_modules/rxjs/dist/cjs/internal/operators/map.js:9:16 at OperatorSubscriber. (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/util/lift.js:14:28) at /usr/share/kibana/node_modules/rxjs/dist/cjs/internal/Observable.js:30:30 at Object.errorContext (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/util/errorContext.js:22:9) at Observable.subscribe (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/Observable.js:26:24) at /usr/share/kibana/node_modules/rxjs/dist/cjs/internal/operators/distinctUntilChanged.js:13:16 at OperatorSubscriber. (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/util/lift.js:14:28) at /usr/share/kibana/node_modules/rxjs/dist/cjs/internal/Observable.js:30:30 at Object.errorContext (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/util/errorContext.js:22:9) at Observable.subscribe (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/Observable.js:26:24) at /usr/share/kibana/node_modules/rxjs/dist/cjs/internal/operators/map.js:9:16 at SafeSubscriber. (/usr/share/kibana/node_modules/rxjs/dist/cjs/internal/util/lift.js:14:28) at /usr/share/kibana/node_modules/rxjs/dist/cjs/internal/Observable.js:30:30 FATAL Error: [config validation of [server].host]: value must be a valid hostname (see RFC 1123). FATAL Error: [config validation of [elasticsearch].username]: value of "elastic" is forbidden. This is a superuser account that cannot write to system indices that Kibana needs to function. Use a service account token instead. Learn more: https://www.elastic.co/guide/en/elasticsearch/reference/8.0/service-accounts.html ``` This happened when I moved from version 7.3.1 to 8.3.2. Is there any idea of what is going wrong here? ---
**Author:** ![Marius\_Dragomir](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/marius_dragomir/32/42087_2.png) [@Marius\_Dragomir](https://discuss.elastic.co/u/Marius_Dragomir)\ **Post date:** [July 23, 2022, 5:40pm UTC](https://discuss.elastic.co/t/fatal-error-config-validation-of-server-host-value-must-be-a-valid-hostname-see-rfc-1123/310029/2 "2022-07-23T17:40:28Z")
You need to set the server.host to `server.host: "0.0.0.0"` and it will work. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [August 20, 2022, 5:41pm UTC](https://discuss.elastic.co/t/fatal-error-config-validation-of-server-host-value-must-be-a-valid-hostname-see-rfc-1123/310029/3 "2022-08-20T17:41:26Z")
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