2、安裝步驟
# 解除安裝centos中預安裝的 mysql
rpm -qa|grep -i mariadb
rpm -e mariadb-libs-5.5.68-1.el7.x86_64 --nodeps
rpm -qa | grep -i mysql
rpm -e mysql-libs-5.1.71-1.el6.x86_64 --nodeps
# 上傳mysql的安裝包
scp e:mysql-8.0.23-1.el7.x86_64.rpm-bundle.tar [email protected]:/usr/local/
# 解壓到/usr/local/mysql目錄下
mkdir /usr/local/mysql
tar -zxvf mysql-8.0.23-1.el7.x86_64.rpm-bundle.tar -c /usr/local/mysql/
# 安裝
rpm -ivh mysql-community-common-8.0.23-1.el7.x86_64.rpm
rpm -ivh mysql-community-libs-8.0.23-1.el7.x86_64.rpm
rpm -ivh mysql-community-client-plugins-8.0.23-1.el7.x86_64.rpm
rpm -ivh mysql-community-client-8.0.23-1.el7.x86_64.rpm
rpm -ivh mysql-community-server-8.0.23-1.el7.x86_64.rpm
# mysql服務命令
systemctl start mysqld.service
systemctl status mysqld.service
systemctl stop mysqld.service
systemctl enable mysqld.service
systemctl restart mysqld.service
# 檢視root使用者初始化密碼
cat/
var/log/mysqld.log | grep password
# 啟動客戶端連線
mysql -u root -p password
# 修改root使用者密碼
alter user 'root'@'localhost' identified with mysql_native_password by '複雜密碼'
;# 修改mysql密碼安全等級為低，長度最小為4位
set global validate_password.policy=0;
set global validate_password.length=4;
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