mySQL 8.0.33安装指南(推荐)

tar -xf mysql-8.0.33-el7-x86_64.tar.gz

mv mysql-8.0.33-el7-x86_64 mysql
mv mysql /usr/local/

useradd -s /sbin/nologin mysql

chown -R mysql:mysql /usr/local/mysql/
chown mysql:mysql /etc/my.cnf

# 客户端配置
[client]
port = 3306                      # MySQL客户端连接的默认端口
socket=/usr/local/mysql/mysql.sock # MySQL客户端连接的socket文件路径
# MySQL服务器配置
[mysqld]
user = mysql                      # 运行MySQL服务的系统用户
basedir=/usr/local/mysql          # MySQL安装目录的路径
datadir=/usr/local/mysql/data     # MySQL数据文件的存储目录
port = 3306                      # MySQL服务器监听的端口号
character-set-server=utf8         # 服务器端默认字符集
pid-file = /usr/local/mysql/mysqld.pid # MySQL服务器进程ID文件的路径
socket=/usr/local/mysql/mysql.sock # MySQL服务器使用的socket文件路径
bind-address = 0.0.0.0           # MySQL服务器绑定的IP地址，0.0.0.0表示监听所有可用的网络接口
skip-name-resolve                # 禁用DNS解析，提高连接速度，但可能导致无法使用主机名连接
max_connections=2048             # 允许的最大并发连接数
default-storage-engine=INNODB    # 默认存储引擎，这里设置为InnoDB
max_allowed_packet=16M           # 允许的最大数据包大小，单位为字节
server-id = 1                    # MySQL复制中的唯一标识符，用于主从复制
sql_mode = STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION # SQL模式设置，定义了MySQL应如何处理SQL语句

echo "PATH=$PATH:/usr/local/mysql/bin" >> /etc/profile
source /etc/profile

cd /usr/local/mysql/bin/
./mysqld --initialize-insecure --user=mysql --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data

cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysqld
chmod +x /etc/init.d/mysqld
systemctl daemon-reload
systemctl restart mysqld

mysqladmin -u root password "123456"

mysql -u root -p123456

CREATE USER 'root'@'%' IDENTIFIED BY '123456';
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%';
flush privileges;
ALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY '123456';