Resolution
----------

**Note:** If you receive errors when you run AWS Command Line Interface (AWS CLI) commands, then see [Troubleshooting errors for the AWS CLI](https://docs.aws.amazon.com/cli/latest/userguide/cli-chap-troubleshooting.html). Also, make sure that [you're using the most recent AWS CLI version](https://docs.aws.amazon.com/cli/latest/userguide/getting-started-install.html).

To turn on in-transit encryption for your cluster, make sure that your cluster meets [in-transit encryption conditions for Amazon ElastiCache for Valkey and Redis OSS](https://docs.aws.amazon.com/AmazonElastiCache/latest/dg/in-transit-encryption.html#in-transit-encryption-constraints). Then, [turn on in-transit encryption for your cluster](https://docs.aws.amazon.com/AmazonElastiCache/latest/dg/in-transit-encryption-enable.html#in-transit-encryption-enable-console).

Related information
-------------------

[Connecting to ElastiCache (Valkey) or Amazon ElastiCache for Redis OSS with in-transit encryption using valkey-cli](https://docs.aws.amazon.com/AmazonElastiCache/latest/dg/connect-tls.html)

[ElastiCache in-transit encryption (TLS)](https://docs.aws.amazon.com/AmazonElastiCache/latest/dg/in-transit-encryption.html)

I want to turn on TLS for an existing self-managed Amazon ElastiCache cluster.

Turn on TLS for existing self-managed ElastiCache clusters

How do I turn on TLS for an existing self-managed ElastiCache cluster?

Database

How do I turn on TLS for an existing self-managed ElastiCache cluster?

Resolution

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