由于Exsi6.5应用了密码策略，导致无法更改root密码，研究了一下，终于找到了方法，记录一下。

 

Exsi更改密码总是提示密码不符合复杂度，受控于pam_passwdqc.so这个东西的影响，关于Exsi密码问题官方也有介绍，但是具体没告诉你怎么去操作这个密码：

[root:/etc/pam.d] passwd root

Changing password for root You can now choose the new password or passphrase. A valid password should be a mix of upper and lower case letters, digits, and other characters. You can use a 7 character long password with characters from at least 3 of these 4 classes. An upper case letter that begins the password and a digit that ends it do not count towards the number of character classes used. A passphrase should be of at least 3 words, 8 to 30 characters long, and contain enough different characters. Alternatively, if no one else can see your terminal now, you can pick this as your password: "hey4Lime&roar". Enter new password:  Re-type new password: 

 

 

修改办法：

vi /etc/pam.d/passwd

password   required    /lib/security/$ISA/pam_passwdqc.so retry=3 min=disabled,disabled,7,7,7 max=30 match=4 similar=deny enforce=users 

 

按照上面的修改上面这行行了，主要是enforce=users在起作用。