CentOS 安装部署 MySQL 8.0

[root@smartagriculture ~]# systemctl start mysqld
[root@smartagriculture ~]# systemctl enable mysqld
[root@smartagriculture ~]# grep pass /var/log/mysqld.log 
2020-09-10T04:24:19.519890Z 6 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: FWJJwDhl1D(!
[root@smartagriculture ~]# mysql -uroot -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 8
Server version: 8.0.21

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Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY 'Root123456.';
Query OK, 0 rows affected (0.00 sec)

mysql> use mysql;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Database changed
mysql> update user set host='192.168.1.%' where user='root';
Query OK, 1 row affected (0.00 sec)
Rows matched: 1  Changed: 1  Warnings: 0

mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'192.168.1.%' WITH GRANT OPTION;
Query OK, 0 rows affected (0.00 sec)

mysql> set global validate_password.policy=0;
Query OK, 0 rows affected (0.01 sec)

mysql> set global validate_password.length=1;
Query OK, 0 rows affected (0.00 sec)

mysql> ALTER USER 'root'@'192.168.1.%' IDENTIFIED BY 'root123456.';
Query OK, 0 rows affected (0.00 sec)

mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)

mysql> \q
Bye
[root@smartagriculture ~]#