EC2 with Redis - connection refused although all ports are opened.

Question

I've create to EC2 instances ubuntu 18.04. installed Redis on both following this guide:  
https://www.digitalocean.com/community/tutorials/how-to-install-and-secure-redis-on-ubuntu-18-04.  
  
I've disabled ufw firewall on one of them, on that same one i've assigned an allow all connection security group - just for testing.  
  
When i try connecting to the redis server from the second instance using:

```
redis-cli -h 13.59.136.252 -p 6379
```

I keep getting connection refused. Not sure where to go next  
Both EC2 instances are on the same VPC.

Accepted Answer

Hi,  
You might have missed the following steps. Note: these are NOT specified in this document.

```
sudo nano /etc/redis/redis.conf
```

Then change the localhost binding (comment it out) and specify the IP address of the EC2 instance:

```
bind 127.0.0.1 ::1
```

To:

```
#bind 127.0.0.1 ::1
bind 34.209.249.149 ::1
```

Save the results and run

```
sudo systemctl restart redis
```

For the security Group for 34.209.249.149, make sure the Inbound allows port 6379.  
Then connect from your other machine with:

```
redis-cli -h 34.209.249.149 -p 6379
```

Hope this helps!  
-randy

EC2 with Redis - connection refused although all ports are opened.

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