linux install redis using script

1. If you have installed it, please uninstall it first

1. Check if redis is running

ps aux | grep redis

2. If redis is running, remove it by killing the reids processClose, you can see from the red box above that the redis process PID is 1112

# kill -9 PIDkill -9 1112

After closing the process, check again, redis has stopped running

3. Enter the following command to stop the redis-server service

redis-cli shutdown

4. View the redis installation directory

whereis redis

5. Delete the redis installation package

rm -rf /usr/bin/redisrm -rf /usr/local/redis

6. Check if redis is deleted

2. Install

This time I use redis script to install redis

1. First upload the redis installation package and installation script to the specified location, and give executable permission to the script file

chmod 777 -R Redis_Install.sh

2. Run the script and wait for installation

./Redis_Install.sh

Successful installation

3. Error (error) NOAUTH Authentication required
When we operate on the redis client in the virtual machine, the following error (error) NOAUTH Authentication required occurs, because redis sets a password, we needUse the password to authenticate and then operate the redis client, otherwise we do not have permission to operate the redis cache database.

auth 'your password'

3. Test external connection

When trying to connect externally to the redis server just installed, we found that the connection timed out.We can end by closing the Linux firewall or specifying port 6379 for development.

3.1, close the firewall

1. Check the firewalld status. If it is in the dead status, the firewall is not enabled.If it is active, it is on.

systemctl status firewalld

2. Turn off firewall

#Close the firewallsystemctl stop firewalld#Open firewall commandsystemctl start firewalld

3.2. When the firewall is turned on, develop the specified port 6379

firewall-cmd --permanent --zone=public --add-port=6379/tcp