MySQL安裝-解壓包安裝

建立用戶組和用戶

[root@localhost software]# groupadd mysql
groupadd：「mysql」組已存在
[root@localhost software]# useradd -g mysql mysql
useradd：用戶「mysql」已存在
[root@localhost software]# 
[root@localhost software]# passwd mysql
更改用戶 mysql 的密碼 。
新的 密碼：
無效的密碼： 密碼是一個迴文
從新輸入新的 密碼：

解壓安裝包

[root@localhost software]# tar -zxvf mysql-5.7.26-el7-x86_64.tar.gz

移動解壓後的文件夾

[root@localhost software]# mv mysql-5.7.26-el7-x86_64/ /usr/local/mysql

更改所屬的組和用戶

[root@localhost mysql]# cd /home/mysql/
[root@localhost mysql]# chown -R mysql mysql/
[root@localhost mysql]# chgrp -R mysql mysql/
[root@localhost mysql]# mkdir data
[root@localhost mysql]# chown -R mysql:mysql data

安裝

[root@localhost mysql]# cd /usr/local/mysql/
[root@localhost mysql]# bin/mysql_install_db --user=mysql --datadir=/home/mysql/data/
2019-07-19 11:02:18 [WARNING] mysql_install_db is deprecated. Please consider switching to mysqld --initialize
2019-07-19 11:02:20 [WARNING] The bootstrap log isn't empty:
2019-07-19 11:02:20 [WARNING] 2019-07-19T03:02:18.443343Z 0 [Warning] --bootstrap is deprecated. Please consider using --initialize instead
2019-07-19T03:02:18.443888Z 0 [Warning] Changed limits: max_open_files: 1024 (requested 5000)
2019-07-19T03:02:18.443892Z 0 [Warning] Changed limits: table_open_cache: 431 (requested 2000)

設置目錄及權限

[root@localhost mysql]# cp ./support-files/mysql.server /etc/init.d/mysql
[root@localhost etc]# vi my.cnf
修改配置文件
[root@localhost etc]# chown 777 my.cnf
[root@localhost etc]# chmod +x /etc/init.d/mysql 

設置開機啓動

[root@localhost etc]# chkconfig --level 35 mysql on
[root@localhost etc]# chkconfig --list mysql
mysql              0:關    1:關    2:開    3:開    4:開    5:開    6:關
[root@localhost etc]# 

修改配置文件

[root@localhost /]# vi /etc/profile
修改/etc/profile，在最後添加以下內容
# 修改/etc/profile文件
#set mysql environment
export PATH=$PATH:/usr/local/mysql/bin
#使文件生效
[root@localhost /]# source /etc/profile
[root@localhost /]# 

得到mysql初始密碼

[root@localhost /]# cat /root/.mysql_secret
# Password set for user 'root@localhost' at 2019-07-19 11:02:18 
Pkz:zkdpy50q
[root@localhost /]# 

修改密碼

[root@localhost /]# mysql -uroot -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.7.26-log

Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.

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> set PASSWORD = PASSWORD('root');
Query OK, 0 rows affected, 1 warning (0.00 sec)

mysql> flush privileges;
Query OK, 0 rows affected (0.01 sec)
mysql> exit
Bye

添加遠程訪問權限

[root@localhost /]# mysql -uroot -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 4
Server version: 5.7.26-log MySQL Community Server (GPL)

Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.

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> 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='%' where user='root';
Query OK, 1 row affected (0.00 sec)
Rows matched: 1  Changed: 1  Warnings: 0

mysql> select host,user from user;
+-----------+---------------+
| host      | user          |
+-----------+---------------+
| %         | root          |
| localhost | mysql.session |
| localhost | mysql.sys     |
+-----------+---------------+
3 rows in set (0.00 sec)

mysql> 

重啓mysql生效

[root@localhost /]# service mysql stop
Shutting down MySQL.. SUCCESS! 
[root@localhost /]# service mysql start
Starting MySQL... SUCCESS! 
[root@localhost /]# service mysql status
 SUCCESS! MySQL running (46983)
[root@localhost /]# 

打開端口

firewall-cmd --permanent --zone=public --add-port=3306/tcp //永久
[root@localhost /]# firewall-cmd --permanent --zone=public --add-port=3306/tcp
success
[root@localhost /]# firewall-cmd --reload
success
[root@localhost /]#