Note that this is a Redis-specific command and is different from the ping networking utility. The ping command is useful for testing whether the connection to a database is alive. Redis will attempt to reestablish the connection every time you run a command when it’s in a disconnected state. If you’ve attempted to connect to an unavailable instance, redis-cli will go into disconnected mode. redli -tls -u rediss:// connection_URI.Note that this example includes the -tls option, which specifies that the connection should be made over TLS, and the -u flag, which declares that the following argument will be a connection URI: Use the following syntax to connect to a database with Redli. For DigitalOcean Managed Databases, which require connections to be made over TLS, we recommend using Redli to access the Redis instance. redis-cli does not support TLS connections, so you’ll need to use a different tool that supports the rediss protocol in order to connect with the URI. However, if you have a connection string that begins with rediss://, that means your managed database requires connections over TLS/SSL. If the connection string begins with redis://, you can include it as an argument to redis-cli to connect. If you’re working with a managed Redis database, your cloud provider may give you a URI that begins with redis:// or rediss:// which you can use to access your datastore.
MEDIS REDIS PASSWORD
If the password passed to auth is valid, the command will return OK. To authenticate after connecting, use the auth command followed by the password:
However, they won’t be able to add, change, or query data until they authenticate. If you’ve set a Redis password, clients will be able to connect to Redis even if they don’t include the -a flag in their redis-cli command.
The alternative to running Redis commands in interactive mode is to run them as arguments to the redis-cli command, like so: In this example and others throughout this guide, the prompt indicates a connection to a Redis instance hosted locally ( 127.0.0.1) and accessed over Redis’s default port ( 6379): In interactive mode, your command line prompt will change to reflect your connection. This will take you into redis-cli’s interactive mode which presents you with a read-eval-print loop (REPL) where you can run Redis’s built-in commands and receive replies. If you have redis-server installed locally, you can connect to the Redis instance with the redis-cli command:
MEDIS REDIS INSTALL
Then, you must either install Redli or set up a TLS tunnel in order to connect to the Managed Database over TLS. To provision a DigitalOcean Managed Database, follow our Managed Databases product documentation. Note that if you’re using a different Redis interface - Redli, for example - the exact output of certain commands may differ.Īlternatively, you could provision a managed Redis database instance to test these commands, but note that depending on the level of control allowed by your database provider, some commands in this guide may not work as described. We will demonstrate how these commands behave by running them with redis-cli, the Redis command line interface.
MEDIS REDIS HOW TO
To set up a similar environment, you can follow Step 1 of our guide on How To Install and Secure Redis on Ubuntu 18.04. The commands shown in this guide were tested on an Ubuntu 18.04 server running Redis version 4.0.9.
We encourage you to jump to any section that is relevant to the task you’re trying to complete. This guide is written as a cheat sheet with self-contained examples. In this tutorial we will go over how to connect to Redis from the command line, how to authenticate and test your connection, as well as how to close a Redis connection. Whether you’ve installed Redis locally or you’re working with a remote instance, you need to connect to it in order to perform most operations. Redis is an open-source, in-memory key-value data store.