# Opensearch-dashboards cannot connect to the opensearch server

**URL:** <https://forum.opensearch.org/t/opensearch-dashboards-cannot-connect-to-the-opensearch-server/17591>\
**Category:** OpenSearch Dashboards\
**Tags:** troubleshoot, configure, security-issue\
**Created:** [January 26, 2024, 9:38am UTC](https://forum.opensearch.org/t/opensearch-dashboards-cannot-connect-to-the-opensearch-server/17591 "2024-01-26T09:38:13Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![AndAsh](https://avatars.discourse-cdn.com/v4/letter/a/ea5d25/32.png) [@AndAsh](https://forum.opensearch.org/u/AndAsh)\
**Post date:** [January 26, 2024, 9:38am UTC](https://forum.opensearch.org/t/opensearch-dashboards-cannot-connect-to-the-opensearch-server/17591/1 "2024-01-26T09:38:13Z")

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**Versions** (relevant - OpenSearch/Dashboard/Server OS/Browser):  
OpenSearch v2.11.1  
OpensearchDashboard 2.11.1  
Server OS Debian 11  
Browser Google Chrome

**Опишите проблему** :  
opensearch-dashboards cannot connect to the opensearch server

**Configuration** :  
opensearch.yml  
discovery.type: single-node

discovery.seed\_hosts: [“127.0.0.1”, “10.3.4.174”]

plugins.security.ssl.transport.pemcert\_filepath: certs/opensearch-01.pem  
plugins.security.ssl.transport.pemkey\_filepath: certs/opensearch-01-key.pem  
plugins.security.ssl.transport.pemtrustedcas\_filepath: certs/root-ca.pem  
plugins.security.ssl.transport.enforce\_hostname\_verification: false  
plugins.security.ssl.http.enabled: true  
plugins.security.ssl.http.pemcert\_filepath: certs/opensearch-01.pem  
plugins.security.ssl.http.pemkey\_filepath: certs/opensearch-01-key.pem  
plugins.security.ssl.http.pemtrustedcas\_filepath: certs/root-ca.pem  
plugins.security.allow\_unsafe\_democertificates: true  
plugins.security.allow\_default\_init\_securityindex: true  
plugins.security.authcz.admin\_dn:  
‘CN=opensearch-01,OU=DSRC,O=LABICS,L=SAINT-PETERSBURG,ST=SAINT-PETERSBURG,C=RU’  
plugins.security.nodes\_dn:  
‘CN=opensearch-01,OU=DSRC,O=LABICS,L=SAINT-PETERSBURG,ST=SAINT-PETERSBURG,C=RU’

plugins.security.audit.type: internal\_opensearch  
plugins.security.enable\_snapshot\_restore\_privilege: true  
plugins.security.check\_snapshot\_restore\_write\_privileges: true  
plugins.security.restapi.roles\_enabled: [“all\_access”, “security\_rest\_api\_access”]  
plugins.security.system\_indices.enabled: true  
plugins.security.system\_indices.indices: [“.plugins-ml-config”, “.plugins-ml-connector”, “.plugins-ml-model-group”, “.plugins-ml-model”, “.plugins-ml-task”, “.plugins-ml-conversation-meta”, “.plugins-ml-conversation-interactions”, “.opendistro-alerting-config”, “.opendistro-alerting-alert\*”, “.opendistro-anomaly-results\*”, “.opendistro-anomaly-detector\*”, “.opendistro-anomaly-checkpoints”, “.opendistro-anomaly-detection-state”, “.opendistro-reports-_", ".opensearch-notifications-_”, “.opensearch-notebooks”, “.opensearch-observability”, “.ql-datasources”, “.opendistro-asynchronous-search-response\*”, “.replication-metadata-store”, “.opensearch-knn-models”, “.geospatial-ip2geo-data\*”]

opensearch-dashboards.yml  
server.port: 5601

server.host: “10.3.4.177”

server.name: “kibana”

opensearch.hosts: [“[https://opensearch-01.mnc078.mcc250.dsrc.labics.ru:9200](https://opensearch-01.mnc078.mcc250.dsrc.labics.ru:9200)”]  
opensearch.ssl.verificationMode: full  
opensearch.username: “admin”  
opensearch.password: “\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*”  
opensearch.requestHeadersAllowlist: [authorization,securitytenant]  
server.ssl.enabled: true  
server.ssl.certificate: /usr/share/opensearch-certificates/admin.pem  
server.ssl.key: /usr/share/opensearch-certificates/admin-key.pem  
opensearch.ssl.certificateAuthorities: [“/usr/share/opensearch-certificates/root-ca.pem”]  
opensearch\_security.multitenancy.enabled: true  
opensearch\_security.multitenancy.tenants.preferred: [“Private”, “Global”]  
opensearch\_security.readonly\_mode.roles: [“opensearch\_dashboards\_read\_only”]  
opensearch\_security.cookie.secure: true

opensearchDashboards.index: “.opensearch\_dashboards”  
logging.dest: /var/log/opensearch-dashboards/opensearch-dashboards.log

**Relevant Logs or Screenshots** :  
/var/log/opensearch/opensearch.log  
[2024-01-26T11:50:09,912][WARN][o.o.s.a.BackendRegistry] [opensearch-01] Authentication finally failed for admin from 10.3.4.177:34238  
[2024-01-26T11:50:12,414][WARN][o.o.s.a.BackendRegistry] [opensearch-01] Authentication finally failed for admin from 10.3.4.177:34238  
[2024-01-26T11:50:14,916][WARN][o.o.s.a.BackendRegistry] [opensearch-01] Authentication finally failed for admin from 10.3.4.177:34238  
[2024-01-26T11:50:17,419][WARN][o.o.s.a.BackendRegistry] [opensearch-01] Authentication finally failed for admin from 10.3.4.177:34238  
[2024-01-26T11:50:19,919][WARN][o.o.s.a.BackendRegistry] [opensearch-01] Authentication finally failed for admin from 10.3.4.177:34238  
[2024-01-26T11:50:22,422][WARN][o.o.s.a.BackendRegistry] [opensearch-01] Authentication finally failed for admin from 10.3.4.177:34238  
[2024-01-26T11:50:24,924][WARN][o.o.s.a.BackendRegistry] [opensearch-01] Authentication finally failed for admin from 10.3.4.177:34238  
[2024-01-26T11:50:27,424][WARN][o.o.s.a.BackendRegistry] [opensearch-01] Authentication finally failed for admin from 10.3.4.177:34238  
[2024-01-26T11:50:29,926][WARN][o.o.s.a.BackendRegistry] [opensearch-01] Authentication finally failed for admin from 10.3.4.177:34238  
[2024-01-26T11:50:32,428][WARN][o.o.s.a.BackendRegistry] [opensearch-01] Authentication finally failed for admin from 10.3.4.177:34238

/var/log/opensearch-dashboards/opensearch-dashboards.log  
{“type”:“log”,“@timestamp”:“2024-01-26T08:37:13Z”,“tags”:[“info”,“plugins-service”],“pid”:6617,“message”:“Plugin "dataSourceManagement" has been disabled since the following direct or transitive dependencies are missing or disabled: [dataSource]”}  
{“type”:“log”,“@timestamp”:“2024-01-26T08:37:13Z”,“tags”:[“info”,“plugins-service”],“pid”:6617,“message”:“Plugin "dataSource" is disabled.”}  
{“type”:“log”,“@timestamp”:“2024-01-26T08:37:13Z”,“tags”:[“info”,“plugins-service”],“pid”:6617,“message”:“Plugin "visTypeXy" is disabled.”}  
{“type”:“log”,“@timestamp”:“2024-01-26T08:37:13Z”,“tags”:[“info”,“plugins-system”],“pid”:6617,“message”:“Setting up [51] plugins: [usageCollection,opensearchDashboardsUsageCollection,opensearchDashboardsLegacy,mapsLegacy,share,opensearchUiShared,legacyExport,embeddable,expressions,data,securityAnalyticsDashboards,home,apmOss,savedObjects,searchRelevanceDashboards,reportsDashboards,dashboard,mlCommonsDashboards,visualizations,visTypeVega,visTypeTimeline,visTypeTable,visTypeMarkdown,visBuilder,visAugmenter,anomalyDetectionDashboards,alertingDashboards,tileMap,regionMap,customImportMapDashboards,inputControlVis,ganttChartDashboards,visualize,queryWorkbenchDashboards,indexManagementDashboards,notificationsDashboards,management,indexPatternManagement,advancedSettings,console,dataExplorer,charts,visTypeVislib,visTypeTimeseries,visTypeTagcloud,visTypeMetric,observabilityDashboards,discover,savedObjectsManagement,securityDashboards,bfetch]”}  
{“type”:“log”,“@timestamp”:“2024-01-26T08:37:14Z”,“tags”:[“info”,“savedobjects-service”],“pid”:6617,“message”:“Waiting until all OpenSearch nodes are compatible with OpenSearch Dashboards before starting saved objects migrations…”}  
{“type”:“log”,“@timestamp”:“2024-01-26T08:37:14Z”,“tags”:[“error”,“opensearch”,“data”],“pid”:6617,“message”:“[ResponseError]: Response Error”}  
{“type”:“log”,“@timestamp”:“2024-01-26T08:37:14Z”,“tags”:[“error”,“savedobjects-service”],“pid”:6617,“message”:“Unable to retrieve version information from OpenSearch nodes.”}  
{“type”:“log”,“@timestamp”:“2024-01-26T08:37:16Z”,“tags”:[“error”,“opensearch”,“data”],“pid”:6617,“message”:“[ResponseError]: Response Error”}  
{“type”:“log”,“@timestamp”:“2024-01-26T08:37:19Z”,“tags”:[“error”,“opensearch”,“data”],“pid”:6617,“message”:“[ResponseError]: Response Error”}  
{“type”:“log”,“@timestamp”:“2024-01-26T08:37:21Z”,“tags”:[“error”,“opensearch”,“data”],“pid”:6617,“message”:“[ResponseError]: Response Error”}  
{“type”:“log”,“@timestamp”:“2024-01-26T08:37:24Z”,“tags”:[“error”,“opensearch”,“data”],“pid”:6617,“message”:“[ResponseError]: Response Error”}

---

<div class="post-metadata">

**Author:** ![Mantas](https://avatars.discourse-cdn.com/v4/letter/m/7bcc69/32.png) [@Mantas](https://forum.opensearch.org/u/Mantas)\
**Post date:** [January 26, 2024, 3:56pm UTC](https://forum.opensearch.org/t/opensearch-dashboards-cannot-connect-to-the-opensearch-server/17591/2 "2024-01-26T15:56:23Z")

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Hi @AndAsh,

Could you run the curl command below and share the output:

`curl --insecure -u <opensearch.username>:<opensearch.password> -XGET https://<OS_node>:9200/_plugins/_security/authinfo?pretty`

> [@AndAsh](#):
>
> opensearch.username: “admin”  
> opensearch.password: “\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*”

best,  
mj