All 7 TLS & Encryption in Redis questions
More in TLS & Encryption in Redis
Why is enabling TLS encryption important for a Redis deployment, and what does it actually protect against? How does mutual TLS authentication differ from standard one way TLS, and why would you enable it for Redis? How do you configure a Redis client application, such as one using the redis-py library, to connect over TLS? What is the role of certificate expiration monitoring in maintaining a secure, always available Redis deployment? What performance considerations should you keep in mind when enabling TLS on a high throughput Redis deployment? How do you enable TLS encryption for internal replication and cluster bus traffic between Redis nodes, not just for client connections?
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Redis › TLS & Encryption in Redis

What certificate files are required to configure TLS on a Redis server?

Beginner

Answer

You generally need a server certificate and its matching private key to identify and authenticate the Redis server itself, plus a certificate authority file used to verify the identity of connecting clients when mutual authentication is enabled, all of which are supplied through Redis configuration options when starting the server.
tls-cert-file /path/to/redis.crt
tls-key-file /path/to/redis.key
tls-ca-cert-file /path/to/ca.crt
Real-world example A DevOps engineer provisions a set of TLS certificates using an internal certificate authority and configures each Redis node to present these certificates to connecting clients, establishing a chain of trust across the environment.

Common follow-ups: Can self signed certificates be used for internal Redis traffic?;How often should Redis TLS certificates be rotated?

Redis Security & ACL;Redis with Docker & Kubernetes
All 7 TLS & Encryption in Redis questions