参考：https://www.cnblogs.com/yang6/p/14021902.html

过程

安装包：https://cdn.mysql.com/archives/mysql-8.0/mysql-8.0.26-linux-glibc2.12-x86_64.tar.xz

xz -d mysql-8.0.26-linux-glibc2.12-x86_64.tar.xz
mkdir -p /data/software
cp mysql-8.0.26-linux-glibc2.12-x86_64.tar /data/software/
cd /data/software/
tar -xvf mysql-8.0.26-linux-glibc2.12-x86_64.tar
mv mysql-8.0.26-linux-glibc2.12-x86_64 mysql
mkdir package
mv mysql-8.0.26-linux-glibc2.12-x86_64.tar package/
groupadd mysql
useradd -g mysql mysql
cd mysql/
mkdir data
cd ..
chmod -R 777 mysql/
chown -R mysql:mysql mysql/
vi /etc/my.cnf
chmod 644 /etc/my.cnf
cd mysql/bin/
./mysqld --initialize --console
chmod -R 777 /data/software/mysql/data
cd ..
cd support-files/
./mysql.server start
cp mysql.server  /etc/init.d/mysqld
ln -s /data/software/mysql/bin/mysql /usr/bin

配置文件

[mysqld]
# 设置3306端口
port=3306
# 设置mysql的安装目录
basedir=/data/software/mysql
# 设置mysql数据库的数据的存放目录
datadir=/data/software/mysql/data
# 允许最大连接数
max_connections=10000
# 允许连接失败的次数。这是为了防止有人从该主机试图攻击数据库系统
max_connect_errors=10
# 服务端使用的字符集默认为UTF8
character-set-server=utf8
# 创建新表时将使用的默认存储引擎
default-storage-engine=INNODB
# 默认使用“mysql_native_password”插件认证
default_authentication_plugin=mysql_native_password
#sql_model 去掉ONLY_FULL_GROUP_BY
sql-mode=STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_ENGINE_SUBSTITUTION
# 表名不区分大小写
lower_case_table_names=1
[mysql]
# 设置mysql客户端默认字符集
default-character-set=utf8
[client]
# 设置mysql客户端连接服务端时默认使用的端口
port=3306
default-character-set=utf8

mysql第一次登入后内部需要的命令

ALTER USER 'root'@'localhost' IDENTIFIED BY '123456';
use mysql;
update user set host='%' where user = 'root';
flush privileges;
grant all privileges on *.* to 'root'@'%';
ALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY '123456';
flush privileges;

mysql启动停止

启动

service mysqld start

停止

service mysqld stop

重启

service mysqld restart

防火墙配置

firewall-cmd --state
firewall-cmd --list-port
firewall-cmd --zone=public --add-port=3306/tcp --permanent
firewall-cmd --reload