locate redis.conf on ununtu / linux

sudo apt update
sudo apt install redis-server

sudo nano /etc/redis/redis.conf

# change "supervised no" to "supervised systemd" 
supervised systemd

sudo systemctl restart redis.service

sudo systemctl status redis

redis-cli

wget http://download.redis.io/redis-stable.tar.gz
tar xvzf redis-stable.tar.gz
cd redis-stable
make
sudo micro /etc/redis/redis.conf