Error establishing a Redis connection Bitnami

1. Check if Redis is running and accessible on the correct port.
2. Verify the Redis configuration, including binding address and authentication.
3. Ensure the firewall/security group rules allow access to the Redis port.
4. Confirm the application connection details are correct.
5. Check the logs for any specific errors.
6. Test the connection using the Redis CLI.
7. Restart the Redis server if needed.

1. If you already have an EC2 instance in the same VPC that connects to Redis, you can use the same security group for your Bitnami machine.

2. First, check the telnet connectivity. If the telnet connection works, there is no network connectivity issue.

telnet endpoint 6379

3. If telnet is not working, you can use the Reachability Analyzer to help you find where the network issue is.

[+] https://aws.amazon.com/blogs/aws/new-vpc-insights-analyzes-reachability-and-visibility-in-vpcs/

4. Also, ensure whether your ElastiCache Redis has transit encryption enabled or not. If enabled, use a TLS connection. To connect via TLS, you need to download some SSL dependency packages.

[+] https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/connect-tls.html

e.g.,

redis-cli -h Primary or Configuration Endpoint --tls -p 6379