MySQL升到5.7版本后,设置root密码时居然报:
ERROR 1819 (HY000): Your password does not satisfy the current policy requirements
搜了下,5.7版本增加了密码强度检测,可以通过口令查看强度和相关信息:
SHOW VARIABLES LIKE 'validate_password%';
+--------------------------------------+--------+
| Variable_name | Value |
+--------------------------------------+--------+
| 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 |
+--------------------------------------+--------+
6 rows in set (0.08 sec)
参数解释
validate_password_dictionary_file
插件用于验证密码强度的字典文件路径.
validate_password_length
密码最小长度,参数默认为8,它有最小值的限制,最小值为:validate_password_number_count + validate_password_special_char_count + (2 * validate_password_mixed_case_count)
validate_password_mixed_case_count
密码至少要包含的小写字母个数和大写字母个数。
validate_password_number_count
密码至少要包含的数字个数。
validate_password_special_char_count
密码至少要包含的特殊字符数。
validate_password_policy
密码强度检查等级,0/LOW、1/MEDIUM、2/STRONG。有以下取值:
Policy | Tests Performed |
---|---|
0 or LOW | Length |
1 or MEDIUM | Length; numeric, lowercase/uppercase, and special characters |
2 or STRONG | Length; numeric, lowercase/uppercase, and special characters; dictionary file |
默认是1,即MEDIUM,所以刚开始设置的密码必须符合长度,且必须含有数字,小写或大写字母,特殊字符。
通常只用修改validate_password_policy
即可:
set global validate_password_policy=0;