Ubuntu
pam package

Minimum Password Length

Asked by Tony

Running ubuntu desktop 12.04 need to modify minimum paasword length. This is normally done in the /etc/login.def but Ubuntu of course changed this to the /etc/pam.d/common-password but the line that I need to modify is not there. any ideas?

password required pam_unix.so nullok obscure min=4 max=8 md5

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  • by Tony
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wojox (wojox) said : 		#1

You should need /etc/pam.d/login

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Sam_ (and-sam) said : 		#2

The line in your entry referes to 10.04.
https://help.ubuntu.com/10.04/serverguide/user-management.html

12.04 structure is there under 'Password Policy'.
https://help.ubuntu.com/12.04/serverguide/user-management.html

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Tony (tdegouw36) said : 		#3

Thanks Sam_, that solved my question.

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Tony (tdegouw36) said : 		#4

@ Sam_(an-sam) Had a chance to try this today and it never changed the default minimum password from 6 to new set value ie 8.

any sugestions. meaning I can still create a password that only has 8 characters. I need to be able to change this.

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Sam_ (and-sam) said : 		#5

> can still create a password that only has 8 characters

If it's set to min=8 then 8 would be expected as minimum value.
If it's set to min=10 I'd expect it would accept no less than 10.

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Tony (tdegouw36) said : 		#6

You would think that that would be the case but when I set the min=8 I can still create a password with only 6 characters. not sure why it is doing this

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Sam_ (and-sam) said : 		#7

Not sure if pam_auth_update has something to do there. In case report a bug if it doesn't work as expected.

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