How to fix permission denied issue RedisJson? - linux

Question

When I try to load a redis module with loadmodule in redis.conf, redis-server crashes.
The log shows
Module /etc/modules/librejson.so failed to load: /etc/modules/librejson.so: unable to open shared objects file: Permission denied.
I have read the documentation to install RedisJson, but it does not work for me.
If I comment loadmodule line, the server works fine.
Installation process
sudo dnf update
sudo dnf upgrade
sudo dnf install redis
Configuration
cd /etc/redis
nvim /redis.conf
loadmodule loadmodule /etc/modules/librejson.so
supervised systemd
The rest of the file is kept by default
What I did
I created modules folder inside etc folder
I ran chown redis:root over modules folder
I moved the module to /etc/modules because I had read that homeprotection can block redis when trying to read the module in the /home path.
Then I used ls -l to check permissions and owners:
-rwxr-xr-x. 2 user user user 23668904 Feb 15 09:10 librejson.so
after that, I ran chown redis:root (as redis.conf owners): -rwxr-xr-xr-x. 2 redis root 23668904 Feb 15 09:10 librejson.so
and when I ran sudo systemctl restart redis.service:
Job for redis.service failed because the control process exited with error code.
See "systemctl status redis.service" and "journalctl -xeu redis.service" for details.
systemctl status redis.service:
redis.service - Redis persistent key-value database
Loaded: loaded (/usr/lib/systemd/system/redis.service; enabled; preset: disabled)
Drop-In: /etc/systemd/system/redis.service.d
└─limit.conf
Active: failed (Result: exit-code) since Thu 2023-02-16 13:21:58 CST; 6min ago
Process: 28947 ExecStart=/usr/bin/redis-server /etc/redis/redis.conf --daemonize no --supervised systemd (code=exited, status=1/FAILURE)
Main PID: 28947 (code=exited, status=1/FAILURE)
Status: "Redis is loading..."
CPU: 10ms
Feb 16 13:21:58 fedora systemd[1]: Starting redis.service - Redis persistent key-value database...
Feb 16 13:21:58 fedora systemd[1]: redis.service: Main process exited, code=exited, status=1/FAILURE
Feb 16 13:21:58 fedora systemd[1]: redis.service: Failed with result 'exit-code'.
Feb 16 13:21:58 fedora systemd[1]: Failed to start redis.service - Redis persistent key-value database.
and nothing, I ran out of ideas.
System specs
Fedora 37
Redis server v=7.0.8