How to Install Redis on Ubuntu

Step 1: Update Your System

🔄 First, make sure all your packages are up-to-date:

sudo apt update && sudo apt upgrade -y

Hit:1 http://archive.ubuntu.com/ubuntu focal InRelease
Get:2 http://archive.ubuntu.com/ubuntu focal-updates InRelease [114 kB]
Reading package lists... Done
Calculating upgrade... Done
        

Step 2: Install Redis

📥 Install Redis from the official repository:

sudo apt install redis-server -y

Reading package lists... Done
Building dependency tree
Reading state information... Done
The following NEW packages will be installed:
  redis-server redis-tools
...
Setting up redis-server (5:5.0.7-2ubuntu0.1) ...
        

Step 3: Verify Redis Installation

🧐 Check the installed version:

redis-server --version

Redis server v=5.0.7 sha=00000000:0 malloc=jemalloc-5.2.1 bits=64 build=00000000

Step 4: Start and Enable Redis Service

🛠️ Start the Redis service and enable it to run at boot:

sudo systemctl start redis
sudo systemctl enable redis
    

Created symlink /etc/systemd/system/multi-user.target.wants/redis.service → /lib/systemd/system/redis.service.

Step 5: Verify Redis is Running

✅ Ensure the Redis service is active:

sudo systemctl status redis

● redis-server.service - Advanced key-value store
     Loaded: loaded (/lib/systemd/system/redis-server.service; enabled; vendor preset: enabled)
     Active: active (running) since Wed 2024-11-15 10:30:00 UTC; 1min 10s ago
        

Step 6: Configure Redis

🛡️ Customize Redis settings by editing its configuration file:

sudo nano /etc/redis/redis.conf

Examples of configurations:

# Enable background mode:
daemonize yes

# Set a password:
requirepass yourpassword
    

Save your changes and restart Redis:

sudo systemctl restart redis

Step 7: Test Redis

🔍 Use the Redis CLI to verify everything is working:

redis-cli
ping
AUTH yourpassword
SET mykey "Hello, Redis"
GET mykey
    

PONG
OK
"Hello, Redis"
        

Step 8: Optional – Install Redis from Source

💡 For the latest version, build Redis from source:

1. 🔧Install dependencies:

   sudo apt install build-essential tcl -y

2. 📥Download and extract Redis:

   
   curl -O http://download.redis.io/redis-stable.tar.gz
   tar xzvf redis-stable.tar.gz
   cd redis-stable
   make
               

3. 🧪Test and install:

   make test && sudo make install

4. ⚙️Set up Redis:

   
   sudo mkdir /etc/redis
   sudo cp redis.conf /etc/redis
   redis-server /etc/redis/redis.conf
               

Step 9: Secure Redis

🔒 Bind Redis to localhost in /etc/redis/redis.conf:

bind 127.0.0.1

Use a firewall to restrict access:

sudo ufw allow from <your-ip> to any port 6379

Step 10: Automate Redis Commands

🤖 Automate Redis tasks with a script:

#!/bin/bash
redis-cli -a yourpassword <