How To Secure Your Redis Installation on Ubuntu 14.04

Introduction

Redis is an in-memory, NoSQL, key-value cache and store that can also be persisted to disk.

This tutorial shows how to implement basic security for a Redis server.

However, keep in mind that Redis was designed for use by trusted clients in a trusted environment, with no robust security features of its own. To underscore that point, here's a quote from the official Redis website:

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How To Install and Use Redis

About Redis

Redis, developed in 2009, is a flexible, open-source, key value data store. Following in the footsteps of other NoSQL databases, such as Cassandra, CouchDB, and MongoDB, Redis allows the user to store vast amounts of data without the limits of a relational database. Additionally, it has also been compared to memcache and can be used, with its basic elements as a cache with persistence.

Note: Redis can be installed automatically on your Droplet by adding this script to its User Data when launching it. Check out this tutorial to learn more about Droplet User Data.

Setup

Before you install redis, there are a couple of prerequisites that need to be downloaded to make the installation as easy as possible.

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