mysql

dev/db/mysql/centos7忘记mysql密码.md

+# centos7忘记mysql的密码
+## 方法一. 找回安装是的初始密码：
+
+```
+grep 'temporary password' /var/log/mysqld.log
+```
+
+## 方法二. 使用操作系统账号和密码，进行修改密码
+
+```
+mysql -uroot -p
+```
+
+输入你的centos的密码
+
+```
+ALTER user 'root'@'localhost' IDENTIFIED BY '新密码';
+```
+
+注：如果显示 ERROR 1819 (HY000): Your password does not satisfy the current policy requirements，说明你的密码不符合安全要求，
+
+```
+FLUSH PRIVILEGES;
+quit;
+```
+
+## 方法三. 强制进行修改密码
+
+```
+systemctl stop mysqld
+systemctl set-environment MYSQLD_OPTS="--skip-grant-tables"
+systemctl start mysqld
+mysql -u root
+```
+
+进入 mysql
+
+```
+ALTER user 'root'@'localhost' IDENTIFIED BY '新密码';
+```
+
+注：如果显示ERROR 1819 (HY000): Your password does not satisfy the current policy requirements，说明你的密码不符合安全要求，
+
+```
+FLUSH PRIVILEGES;
+quit;
+```
+
+```
+systemctl stop mysqld
+systemctl set-environment MYSQLD_OPTS=""
+systemctl start mysqld
+```
+# 参考
+1. [centos7忘记mysql的密码的解决方法](https://www.2cto.com/database/201809/778139.html)
+
+db#SFYH_2020#
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