Deployment Overview of Redis on Server¶

Prerequisites and Basic Requirements¶

The following requirements must be met before deploying Redis on the server:

Operating System: Ubuntu
Privileges: Root or sudo access is required to install packages and modify configuration files.
Network: The server must have network connectivity to download the redis-server package.
Ports: Port 6379 is used for Redis communication.

File and Directory Structure¶

The Redis installation utilizes the following standard directory structure:

Configuration file: /etc/redis/redis.conf
Service name: redis-server

Application Installation Process¶

Redis is installed as a native system package using the apt package manager. The installation process includes:

Installing the redis-server package.
Updating the configuration file to set the bind address, port, supervision mode, and password.
Enabling and starting the service immediately after configuration.

Access Rights and Security¶

Security is enforced through the following configurations:

Bind Address: Redis is configured to bind only to 127.0.0.1, restricting access to local connections only.
Authentication: A password is required for all connections, defined by the requirepass directive in the configuration file.
Firewall: External access is inherently blocked by the bind address setting, but additional firewall rules may be applied at the OS level if needed.

Databases¶

Redis operates as an in-memory data store. The configuration specifies:

Connection Method: TCP connection on port 6379.
Storage Location: Data is stored in memory, with persistence options managed by default Redis settings (not explicitly modified in the provided configuration).
Authentication: All connections must provide the configured password.

Starting, Stopping, and Updating¶

Redis is managed as a systemd service. The following commands are used to control the service:

Start the service: systemctl start redis-server
Stop the service: systemctl stop redis-server
Restart the service: systemctl restart redis-server
Enable the service to start on boot: systemctl enable redis-server
Check the service status: systemctl status redis-server

Available Ports for Connection¶

The following port is configured for Redis:

Port 6379: Default Redis port for client connections.

Location of Configuration Files and Data¶

Configuration File: /etc/redis/redis.conf
Service Unit: Managed by systemd under the name redis-server.

Permission Settings¶

The configuration file /etc/redis/redis.conf is modified to enforce security settings. File permissions are managed by the operating system and the redis-server package installation process.