How to Install Redis

Step 1: Install Redis on Your Server
Connect to your VPS via SSH as root.
Run the following command to install Redis:
bash
Copy
Edit

yum install redis -y

Start and enable Redis to run automatically on boot:
bash
Copy
Edit

systemctl start redis

systemctl enable redis

Step 2: Configure Redis for Performance
Open the Redis configuration file:
bash
Copy
Edit

Update the following settings:
Bind to localhost (for security)
ini
Copy
Edit

bind 127.0.0.1

Set a memory limit (adjust as needed)
ini
Copy
Edit

maxmemory 512mb
maxmemory-policy allkeys-lru

Save and exit (CTRL + X → Y → ENTER).
Restart Redis to apply changes:
bash
Copy
Edit

systemctl restart redis

Step 3: Install the PHP Redis Extension
Install the Redis PHP extension for each PHP version you are using:
bash
Copy
Edit

yum install ea-phpXX-php-redis -y

(Replace XX with your PHP version, e.g., ea-php81-php-redis for PHP 8.1).
Restart LiteSpeed to apply changes:
bash
Copy
Edit

systemctl restart lsws

Step 4: Enable Redis in LiteSpeed Cache
If you are using WordPress LiteSpeed Cache Plugin:
Go to LiteSpeed Cache > Cache > Object.

Set Object Cache to ON.
Choose Redis as the method.
Set Host to 127.0.0.1 and Port to 6379.

Save changes and click Test Connection.
If you are using Magento, OpenCart, or other CMS, Redis integration can be enabled via their caching settings.

Step 5: Verify Redis is Working
Run the following command in SSH:
bash
Copy
Edit

redis-cli ping

If it returns PONG, Redis is running correctly!

*Final Notes*
Redis is now set up and working with LiteSpeed Cache on your shared hosting.
You can monitor Redis usage with:
bash
Copy
Edit

redis-cli info

If Redis does not work, check logs:
bash
Copy
Edit

tail -f /var/log/redis/redis.log