mysql password modification method in Linux (pro-test available)

Prerequisite: install mysql

• Extract mysql.tar.gz to the specified directory

• Enter mysql-5.7.18 directory

• Create folder mkdir data

• Create a user to execute mysqld commands

  groupadd mysql #Create a group mysql
  useradd -g mysql mysql #Create a user and specify a group

• Initialize the database, in the bin directory
  ./mysqld --initialize --user=mysql --datadir=/opt/mysql-5.7.18/data --basedir=/opt/mysql-5.7.18

Change mysql password

1. First start mysql
Start the MySQL service, execute the command in the mysql-5.7.18/bin directory: ./mysqld_safe &
(where the & symbol indicates background startup)

2. Log in to mysql
Log in to mysql, execute the command in the mysql-5.7.18/bin directory: ./mysql -u root -p

Enter the original password to enter

3. Set password

• set password=password('123456');
• Here '123456' is the new password set
• The input command in mysql must end with ;
  

Authorize remote access

Execute the authorization command: grant all privileges on . to [email protected]'%' identified by '123456';
Update the permission information, execute flush to refresh the permissions: flush privileges;
CloseFirewall: systemctl stop firewalld
View firewall status: systemctl status firewalld

Remote connection database access

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