password policy

in version 7 I see password policy option
/user settings
minimum-password-length: 0
minimum-categories: 0

What is minimum-categories ?
I couldn’t find documentation for that.

Will this also be password policy when creating other type of users like ppp or radius?

I also join the question.
What does minimum-categories mean and what values can it take and what these values mean?

Good question. I haven’t found anything in the documentation either. Based on setting the value and changing a password, I have the generated the following table.

0 = no complexity requirements as you can use digits, lower and upper case letters, symbols
1 = no complexity requirement, same as zero. I do suspect that you have to have a non-empty password.
2 = Error "it must contain characters from at least 2 categories(digits, lower and upper case letters, symbols)
3 = Error "it must contain characters from at least 3 categories(digits, lower and upper case letters, symbols)
4 = Error "it must contain characters from at least 4 categories(digits, lower and upper case letters, symbols)

I did not test for no characters as this should be forced by the min length setting.