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Linux怎樣查看mysql密碼,相信很多沒有經驗的人對此束手無策,為此本文總結了問題出現的原因和解決方法,通過這篇文章希望你能解決這個問題。
Linux查看mysql密碼具體方法。
查看默認密碼
或者
[root@VM_0_11_centos ~]# grep 'temporary password' /var/log/mysqld.log 2020-05-07T16:57:52.623306Z 1 [Note] A temporary password is generated for root@localhost: Ukyool6&htfu
初次修改密碼時,需要注意的是密碼中需要含有字母、數字、特殊字符 (要含有大小字母且長度不能小于8)
[root@VM_0_11_centos ~]# mysql -uroot -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 1721 Server version: 5.7.30 MySQL Community Server (GPL) Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql> show databases; ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement. mysql> alter user root@localhost identified by 'root!@#123'; ERROR 1819 (HY000): Your password does not satisfy the current policy requirements mysql> SHOW VARIABLES LIKE 'validate_password%'; ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement. mysql> alter user root@localhost identified by 'Root!@#123'; Query OK, 0 rows affected (0.00 sec) mysql> SHOW VARIABLES LIKE 'validate_password%'; +--------------------------------------+--------+ | Variable_name | Value | +--------------------------------------+--------+ | validate_password_check_user_name | OFF | | validate_password_dictionary_file | | | validate_password_length | 8 | | validate_password_mixed_case_count | 1 | | validate_password_number_count | 1 | | validate_password_policy | MEDIUM | | validate_password_special_char_count | 1 | +--------------------------------------+--------+ 7 rows in set (0.01 sec) mysql> use mysql; Reading table information for completion of table and column names You can turn off this feature to get a quicker startup with -A Database changed mysql> select Host,User from user; +-----------+---------------+ | Host | User | +-----------+---------------+ | localhost | mysql.session | | localhost | mysql.sys | | localhost | root | +-----------+---------------+ 3 rows in set (0.00 sec) mysql>
關于 mysql 密碼策略相關參數;
1)、validate_password_length 固定密碼的總長度;
2)、validate_password_dictionary_file 指定密碼驗證的文件路徑;
3)、validate_password_mixed_case_count 整個密碼中至少要包含大/小寫字母的總個數;
4)、validate_password_number_count 整個密碼中至少要包含阿拉伯數字的個數;
5)、validate_password_policy 指定密碼的強度驗證等級,默認為 MEDIUM;
關于 validate_password_policy 的取值:
0/LOW:只驗證長度;
1/MEDIUM:驗證長度、數字、大小寫、特殊字符;
2/STRONG:驗證長度、數字、大小寫、特殊字符、字典文件;
6)、validate_password_special_char_count 整個密碼中至少要包含特殊字符的個數;
看完上述內容,你們掌握Linux怎樣查看mysql密碼的方法了嗎?如果還想學到更多技能或想了解更多相關內容,歡迎關注億速云行業資訊頻道,感謝各位的閱讀!
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