How to Install Redis on CloudLinux with CageFS

The Redis installation steps are the same as on any RHEL-based system: 

# yum install epel-release
# yum install redis --enablerepo=epel

Once done, start the Redis service via:

# systemctl start redis.service
# systemctl enable redis

You can check Redis’s status by running the following:

# sudo systemctl status redis.service

What differs is that if CageFS is used on the server, you'll need to add the Redis package to CageFS skeleton:

# cagefsctl --addrpm redis
# cagefsctl --force-update

Once you confirm that Redis is indeed running, test the setup with this command:

# redis-cli ping
PONG

Check the Redis Quickstart page for more information:
https://redis.io/topics/quickstart

NB: Redis Support for mod_hostinglimits is deprecated. Check more about it on the following Docs page:
https://docs.cloudlinux.com/deprecated/#redis-support-for-hostinglimits