Pluggable authentication modules (PAM)

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7
votes
8answers
11k views

Desktop login fails, terminal works

I have a freshly setup 12.04 LTS pc system (120 GB SSD, 1 TB HDD, 16 GiB RAM); since a few days, I can't login to the graphical desktop anymore: there is very short flashing shell window which ...
8
votes
2answers
5k views

How do you set requirements (such as minimum length) on passwords?

Is there any way to set up minimum passcode requirements, such as a minimum length, requirement of mixed case alphanumerics and at least 1 symbol in the passcode, and enforce that at passcode changes? ...
4
votes
1answer
1k views

I cannot login into any TTYs

My system is Ubuntu 11.10 (installed from 0, without upgrades/updates). When I enter into any tty (1, 2, 3..) it ask me my login name and password but I can not move forward. When I enter an user ...
4
votes
3answers
8k views

Where are passwords stored?

How do you figure out where are user's passwords stored, for users that can login? I know the system is using LDAP for users (username, home path, etc.), but it doesn't contain any kind of passwords. ...
2
votes
2answers
2k views

Pam_mount won't automount encrypted partiton

As usual, when I install a new version of Ubuntu I install pam_mount to automount my with LUKS encrypted partition on login. However, for Ubuntu 11.10, I followed the same procedure as usual, but I ...
0
votes
0answers
212 views

How to mount a Truecrypt volume with cryptsetup 1.6 and above via pam_mount?

I installed cryptsetup 1.6.2 in 13.10 from this PPA. Versions above 1.6 feature Truecrypt volume support and I can successfully mount my volume from the terminal but haven't been able to automatically ...
0
votes
1answer
84 views

Identification and Authentication methods in Ubuntu

Since I have a very long password, I would like to additionally use an alternative login method. Which other authentication methods are possible in Ubuntu to log in?
0
votes
2answers
527 views

NFS users getting a laggy GUI expierence

I am setting up a system (ubuntu 12.04) that uses ldap, pam, and autofs to load users and their home folders from a remote server. One of the options for login is sitting down at the machine and ...