install mysql using script

1. Delete the previously installed Mysql

1. Check the running status of the MySQL service:

service mysql status

2. View mysql service

ps -ef|grep mysql

3. Close the mysql service

service mysql stop

4. Check the storage location of mysql installation package

5. Delete the above folder

rm -rf /etc/selinux/targeted/active/modules/100/mysql

6. Check again to see if it is deleted

2. Install

1. Give permission to script

chmod 777 -R MySQL_Install.sh

2. Execute the script and wait for installation

./MySQL_Install.sh

Successful installation, remember the default password

3. Modify the default password of the database

At this time, we found an error when connecting to mysql, because mysql was not started

View mysql status through service mysqld status

service mysqld status

Start mysql

service mysqld start

Connect to mysql again, the login is successful at this time
4. Modify mysql default password

SET PASSWORD = PASSWORD('new password');ALTER USER 'root'@'localhost' PASSWORD EXPIRE NEVER;FLUSH PRIVILEGES;

5. Set all hosts to access the server's mysql through the root account

grant all privileges on *.* to 'root'@'%' identified by 'password' with grant option;flush privileges;

6. The development port 3306 can be accessed externally

firewall-cmd --permanent --zone=public --add-port=3306/tcp

4. External connection test