# \[KIBANA\]\[Rules and Connectors\] You must enable Transport Layer Security **URL:** \ **Category:** Kibana\ **Tags:** elastic-stack-security, elastic-stack-alerting\ **Created:** [August 13, 2021, 12:14pm UTC](https://discuss.elastic.co/t/kibana-rules-and-connectors-you-must-enable-transport-layer-security/281350 "2021-08-13T12:14:21Z")\ **Posts on this page:** 1\ **Showing post:** 4
**Author:** ![stephenb](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/stephenb/32/40856_2.png) [@stephenb](https://discuss.elastic.co/u/stephenb)\ **Post date:** [August 17, 2021, 2:47am UTC](https://discuss.elastic.co/t/kibana-rules-and-connectors-you-must-enable-transport-layer-security/281350/4 "2021-08-17T02:47:30Z")
In case anyone is interested, We just had a fairly lengthy conversation on this and this thread > [@Alert in single node](https://discuss.elastic.co/t/alert-in-single-node/281595): > > I'm using Machine learning 7.13 and planning to create alert rule for warning. But I saw this [image] After searching I found these steps to enable TLS. But I saw in [Set up minimal security for Elasticsearch | Elasticsearch Guide [7.13] | Elastic](https://www.elastic.co/guide/en/elasticsearch/reference/7.13/security-minimal-setup.html) wrote If you’re running a [single-node cluster](https://www.elastic.co/guide/en/elasticsearch/reference/7.13/bootstrap-checks.html#single-node-discovery), then you can stop here. If your cluster has multiple nodes, then you must configure Transport Layer Security (TLS) between nodes. [Production mode](https://www.elastic.co/guide/en/elasticsearch/reference/7.13/bootstrap-checks.html#dev-vs-prod-mode) clusters will not start if you do not enable TLS. An… --- _[View the full topic](https://discuss.elastic.co/t/kibana-rules-and-connectors-you-must-enable-transport-layer-security/281350)._