Synology DiskStation User's Guide
Based on DSM 3.1
74 Chapter 7: Set Up File Sharing
Apply Password Strength Rules
You can enable password strength service to make sure DSM users’ password is secure enough to withstand
malicious login attempt.
Note:
Password Strength rules only work for passwords created or modifi ed after the Password Strength service is
enabled. Existing passwords won’t be affected by the rules.
The rules won’t apply to the passwords of users created by importi ng us ers list.
To apply password strength rules:
1 Click Password Strength.
2 Ti ck Apply password strength rules.
3 Tick any of the following rules:
Exclude name and description of user from password: The password must not contain user name or
description.
Mixed case: The password must contain mixed case letters.
Included numeric character: The password must contain at least one numeric character (0~9).
Included special character: The password must contain at least one special character (i.e., ~, `, !, @, #, $,
%, ^, &, *, (, ), -, _, =, +, [, {, ], }, \, |, ;, :, ', ", <, >, /, ?).
Minimum password length: The password must be longer than the specified value. The length should be a
number between 6 and 127.
4 Click Apply.
To cancel password strength rules:
1 Click Password Strength.
2 Uncheck Apply password strength rules.
3 Click Apply.