Connect to Azure Cache for Redis using SSL Port 6380 from Linux VM
Scenario: You are using a Linux VM and you want to connect to Azure Cache for Redis using SSL Port 6380. Action: You can connect to Azure Cache for Redis using SSL Port with the help of Stunnel and Redis-cli. The steps are as follows: Step 1: Install the Redis-cli tool in your Linux machine. The command is as below: sudo apt-get update sudo apt-get install redis-tools Note: redis-tools package has redis-cli tool as well among other tools. Step 2: Since the redis-cli doesn’t support SSL port (6380), we can make use of stunnel to connect to Azure Cache for Redis using SSL port. We have version 4 of the utility, called stunnel4 which can be installed using the below command: sudo apt-get install stunnel4 Note: If you want to run the Redis using non SSL port 6379, in that case you do not need stunnel and you can directly access using the below command provided non-ssl port is open in Azure Cache for Redis: redis-cli -p 6379 -a <Your Access Key for Azure Cache for Redis> -h < yourcachename.redis.cache.windows.net> Step 3: To configure the service to start at booting, you must modify the /etc/default/stunnel4 file using the below command: sudo nano /etc/default/stunnel4 This opens a file where you have a variable ‘ENABLED’ which must be set to 1 to enable the service to start as shown below: You can save the changes with CTL+X and then pressing ENTER. Step 4: We need to configure the Azure Cache for Redis for redis-cli which must be mentioned in Redis configuration file of stunnel. Execute the below command: sudo nano /etc/stunnel/redis.conf This creates a new file where add the following entry and insert the actual name of your Azure Cache for Redis in place of yourcachename. [redis-cli] client = yes accept = 127.0.0.1:6380 connect = yourcachename.redis.cache.windows.net:6380 Save the file. Step 5: Now, we have configured the stunnel and hence need to restart the service which can be done with the help of below command: sudo systemctl restart stunnel4.service Step 6: If you check the services listening for connections on your Redis, you should see stunnel listening on port 6380 as below: sudo netstat -plunt Step 7: Now you can connect to Azure Cache for Redis using SSL port with the help of Redis-cli. Below is the command: redis-cli -p 6380 -a <Your Access Key for Azure Cache for Redis> You can see that Redis gets connected successfully and you will be able to perform operations on Azure Cache for Redis: Hope this helps!
