【Mysql】Centos8.2 安裝 Mysql 8.0
阿新 • • 發佈:2020-12-09
技術標籤:【MySQL】
Rpm 方式安裝
1、Rpm下載與版本選擇地址:https://repo.mysql.com//
在本次安裝中不需要從上面的地址下載,只需要選擇一個合適的版本,通過 dnf localinstall 設定即可;
2、dnf 方式安裝:
如果 dnf install 這一步特別慢,可以通過 國內映象下載對應版本的 mysql-community-sercer,然後覆蓋掉 dnf 的對應快取(/var/dnf/mysql/)。
http://mirrors.ustc.edu.cn/mysql-ftp/Downloads/MySQL-8.0/
dnf localinstall https://repo.mysql.com//mysql80-community-release-el7-1.noarch.rpm
dnf module disable mysql
dnf -y install mysql-community-server
3、修改配置
vim /etc/my.cnf
# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/8.0/en/server-configuration-defaults.html
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
# Ezrealer set,email: [email protected]
character-set-server = utf8mb4
collation-server = utf8mb4_general_ci
bind-address = 0.0.0.0
#只能用IP地址檢查客戶端的登入,不用主機名
skip_name_resolve = 1
max_connections = 2000
default-time_zone='+8:00'
innodb_buffer_pool_size = 8G
thread_cache_size = 64
innodb_log_file_size = 2G
4、啟動mysql 並修改密碼
systemctl start mysqld.service
systemctl status mysqld.service
grep "password" /var/log/mysqld.log
mysql -uroot -p password
# 可選
set global validate_password_policy=0;
ALTER USER 'root'@'localhost' IDENTIFIED BY 'testmysql';
5、設定遠端連線許可權
use mysql;
select host, user, authentication_string, plugin from user;
update user set host='%' where user='root';
FLUSH PRIVILEGES;
執行後用 navicat 連線發現報錯:
1251-Client does not support authentication protocal requested by server ;consider upgrading mysql client
查詢問題後發現:
MySQL8.0之前的版本密碼加密規則:mysql_native_password,
MySQL8.0密碼加密規則:caching_sha2_password
修改mysql加密規則
ALTER USER 'root'@'%' IDENTIFIED BY 'password' PASSWORD EXPIRE NEVER;
ALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY '新的密碼';
FLUSH PRIVILEGES;
再測試,登入成功!