About Configuring the Redis Server

By default, the Redis server runs on TCP Port 6379.

• If the GE Digital APM server and the Redis server are on same machine, then connections are allowed from the local server.
• If the GE Digital APM server and the Redis server are on different machines, then Port 6379 must be accessible between the Client and the Server. Any firewalls between the systems must be configured to support traffic over this port. The default port is changed in the conf file to 6379 by adjusting the port value.

It is recommended to always use Redis in an environment in which the network and the Redis server are secured.

• If the GE Digital APM server and the Redis server are on same machine, then Redis can be secured by blocking external access to the network port (port 6379), allowing connections only from the local server.
• If the GE Digital APM server and the Redis server are on different machines, you can secure the access by:

  • Configuring Redis to use a password.

    Note: By default, Redis is configured without a password.

    When using a password on the Redis server, you must configure the connection string to include the password.

    1. On the GE Digital APM Server, access the folder C:\ProgramData\Meridium, and then, in an application that you can use to modify XML script (e.g., Notepad), open the file MeridiumAppSettings.xml.
    2. Within the <cacheServiceUrl> setting, change the default value localhost to localhost,password=<Redis password>, where <Redis password> is the password for the Redis server.
    Note: The password in the .XML file can be encrypted by running MeridiumCachePasswordUtility.exe from a command prompt, passing in C:\ProgramData\Meridium\MeridiumAppSettings.xml as a command line parameter.

  • Setting up the firewall on the Redis server to only allow connections from the GE Digital APM servers.