CentOS 安裝 MySQL 8.0

前言

CentOS 版本：

$ cat /etc/redhat-release
CentOS Linux release 7.6.1810 (Core)
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開始以前請務必將系統更新

$ yum update -y
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1.下載

$ wget https://repo.mysql.com//mysql80-community-release-el7-3.noarch.rpm
$ yum install mysql80-community-release-el7-3.noarch.rpm -y
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2. 安裝 MySQL Server

$ yum install mysql-community-server -f
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3. 使用前的一些準備工做

3.1 啓動 MySQL Server

$ systemctl start mysqld
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3.2 修改密碼

3.2.1 查看初始密碼

$ cat /var/log/mysqld.log
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輸出以下：

2019-07-13T04:43:51.251982Z 0 [System] [MY-013169] [Server] /usr/sbin/mysqld (mysqld 8.0.16) initializing of server in progress as process 30629
2019-07-13T04:43:54.473795Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: ;pcSFq7)5S#h
2019-07-13T04:43:55.704693Z 0 [System] [MY-013170] [Server] /usr/sbin/mysqld (mysqld 8.0.16) initializing of server has completed
2019-07-13T04:43:57.613183Z 0 [System] [MY-010116] [Server] /usr/sbin/mysqld (mysqld 8.0.16) starting as process 30676
2019-07-13T04:43:58.194311Z 0 [Warning] [MY-010068] [Server] CA certificate ca.pem is self signed.
2019-07-13T04:43:58.237766Z 0 [System] [MY-010931] [Server] /usr/sbin/mysqld: ready for connections. Version: '8.0.16'  socket: '/var/lib/mysql/mysql.sock'  port: 3306  MySQL Community Server - GPL.
2019-07-13T04:43:58.283575Z 0 [System] [MY-011323] [Server] X Plugin ready for connections. Socket: '/var/run/mysqld/mysqlx.sock' bind-address: '::' port: 33060
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第二行就是初始密碼：;pcSFq7)5S#h

3.2.2 修改密碼

利用初始密碼鏈接 MySQL

$ mysql -u root -p
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修改密碼

mysql> ALTER user 'root'@'localhost' IDENTIFIED BY 'password';
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4. 容許遠程訪問

mysql> CREATE USER 'root'@'%' IDENTIFIED BY 'password';
mysql> GRANT ALL ON *.* TO 'root'@'%';
mysql> FLUSH PRIVILEGES;
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Navicat 沒法訪問的解決方法：

mysql> ALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY 'password';
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