Pluggable authentication modules (PAM)

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3
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1answer
95 views

How to properly invoke motd for SSH connections with PAM disabled

I have configured a nice motd message that shows me lots of relevant infos when I login to my VPS via SSH. As password authentication is disabled in sshd_config I would also prefer to disable PAM as ...
3
votes
1answer
2k views

What causes “pam_unix … conversation failed” in auth.log

There are thousands of entries in my auth.log like this: sudo: pam_unix(sudo:auth): conversation failed What causes these to occur? I'd like to fix whatever it is but I'm a bit mystified as to ...
2
votes
1answer
43 views

how to manage ubuntu users from php

I have an Ubuntu 12.04 server machine in a local net, and I would like to log in my user through php. I have tried with pam_auth() but it wasn't configured neither activated for php. I tried a ...
1
vote
1answer
473 views

Login with facial recognition in Ubuntu 13.04?

I have tried to install „PAM face authentication“ with the following commands: sudo add-apt-repository ppa:antonio.chiurazzi sudo apt-get update sudo apt-get install pam-face-authentication But it ...
1
vote
1answer
2k views

Mount the directory / HOME directory located on a remote Windows 2008 R2

I am currently working on the integration of Ubuntu 12.04 LTS Linux on an Active Directory domain in Windows 2008 R2. I have managed to integrate my Ubuntu 12.04 machine to AD 2008, my user ...
0
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1answer
29 views

How to install PECL PAM in Ubuntu 14.04

Can any one help to install PECL PAM in ubuntu 14.04 system . I have tried to install via terminal using sudo aptitude install php5-auth-pam this is what we get "Couldn't find any package whose name ...
0
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1answer
7 views

Kerberos/NIS users require shadow hack

If I have a Ubuntu system to use Kerberos for authentication and NIS for information, users cannot log in unless I copy the content of my NIS shadow map to /etc/shadow. They get insta-rejected. If I ...
0
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1answer
51 views

Most of my software just disappeared (Kubuntu)

Amarok, konsole, dolphin, volume control, and a lot of other software just disappeared after I restored pam.d to default last night. Is there some way for me to restore my software without restoring ...
0
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1answer
1k views

PAM USB on 14.04 su “username” = “no passwd entry for user 'Thornton'”

I followed the directions located here http://linuxconfig.org/linux-authentication-login-with-usb-device Once I reached step 4 I found that the changed authorizations did nothing, so I reverted back, ...
0
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1answer
110 views

Non-root users to shutdown using PAM

I want to configure PAM to enable non-root normal users to be able to shutdown. how to do that? I'm using Ubuntu server 12.04 I know how to do that with many ways such as changing permissions of ...
0
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1answer
88 views

filter PAM_yubico.so debug stdout

I want to use the yubico-pam module (https://github.com/Yubico/yubico-pam) to enable challenge-response authentification using my yubikey when sudoing. I've managed to do that by adding the line ...
0
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1answer
363 views

Kerberos and google-authenticator (2-factor auth)

Does anyone know how can I use google-authenticator in combination with kerberos and thus provide to my users 2-factor authentication?
0
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1answer
559 views

vsftpd hanging when using pam_exec or pam_script

I have VSFTPD integrated with pam_mysql, allowing me to successfully login to an FTP server using accounts kept in a mysql database. I need to automatically create a directory for the user if it is ...
0
votes
1answer
2k views

Getting error sudo: pam_authenticate: Module is unknown

I am new to Ubuntu and have installed Ubuntu 12.04.3 on my laptop. I need to install VAS on it but when I do I get the error: sudo: pam_authenticate: Module is unknown. And I cannot make any other ...
0
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1answer
96 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
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1answer
74 views

Cascading Authentication PAM login

I'm trying to set up an authentication scheme for Ubuntu using the pam files. However, I cannot figure out how to have two separate methods of authentication. I've set up a Yubikey authentication, ...
4
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0answers
502 views

How can I set up radius authentication properly?

On all of our linux workstations, we have configured the PAM modules to use radius authentication. This works well for all of the various things like login on the console, login using ssh, sudo, etc. ...
3
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0answers
954 views

Synchronize SSHFS mount with local filesystem

I've got a directory called "secure" that I mount on my laptop via sshfs whenever the server is in reach. While this server is in reach I want to keep it in two-way sync with a directory called ...
2
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0answers
47 views

lubuntu completely ignoring ldap setup. Followed guide, no contact with ldap server

We have LDAP authentication working on every other server and lxc container in our enterprise, but when we try and have a brand spankin new Lubuntu 14.04 installation do the same, it's completely ...
2
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0answers
39 views

Biometric Enrollment

I am interested in developing a Match-on-card Logon functionality (biometric enrollment) for users on Ubuntu. I've searched through PAM modules, in Ubuntu Software Center, and with Google, and found ...
2
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0answers
54 views

In /etc/pam.d/sshd, what does “# [1]” mean?

In the PAM configuration file /etc/pam.d/sshd, there are a few lines ending in # [1]; for example: session optional pam_motd.so # [1] This doesn't seem to appear in any of the other PAM ...
2
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0answers
92 views

Accidentally removed /etc/pam.d/common-* files

I accidentally removed /etc/pam.d/common-* files on Ubuntu 12.04 through ssh. I have a backup of the files however, I am unable to use sudo nor log back in. Is there a way to fix this?
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0answers
43 views

Can't authenticate against LDAP. /etc/nsswitch.conf seems to be ignored

Running ubuntu 14.0.4.1 on a BananaPi (ARM). I've had a lot of luck getting LDAP authentication to work under 14.0.4 on x86, but something about this just isn't working. If you run getent passwd | ...
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0answers
18 views

How to enforce LDAP group membership with libpam_ldap for SSHD

I am running 14.04 servers that I have install the ldap authentication package ldap-auth-client on and configured to connect to our LDAP servers. I have the authentication part working as well as the ...
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0answers
33 views

Custom MOTD does not update until scripts finish

I recently got a small server and gave some friends accounts on it. They all have their own web pages in ~/public_html using lighttpd so I wrote a script to backup every user's public_html directory. ...
1
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0answers
55 views

TRIM on encrypted device with Precise

I have migrated the main data to a new SSD. (That is Samsung 840 EVO, 120GB.) My ~ is an encrypted partition automounted by pam_mount. That is, there is a record in /etc/security/pam_mount.conf.xml ...
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0answers
202 views

Network Manager asks to unlock keyring after auto login

After updating from Precise to Trusty I get a popup requesting to unlock the keyring for Network Manager after each login (autologin is enabled). On the net people advise to make the connection ...
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0answers
96 views

PAM authentication using ssh key instead of password

When I try to use chsh to change my default shell, I get prompted for my user password. The problem is I log in using my SSH key and do not have a user password - by design. Yes, I can set a ...
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0answers
128 views

pam radius module access-reject

I am trying to set up an Ubuntu server that my users will connect to. I already have a Radius server running on a Windows box, and I would like for connections to this Ubuntu box to authenticate to ...
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0answers
21 views

Portable users on network

I am moving all my windows desktops to Ubuntu in my office. I have a phone system which allows my users to login on any phone thus any desk they sit at is 'their desk' I would like to do something ...
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0answers
173 views

ppolicy with pam_ldap - pwdReset has no effect when logging in from Ubuntu

We installed ppolicy overlay on our ldap server. Password policies work correctly for locking out user after X incorrect password attempts, but we can't enforce user to change his password. When we ...
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0answers
161 views

GNOME Does Not Enforce Password Complexity in 12.04

I'm lost on this: I have password complexity configured in /etc/pam.d/common-password and /etc/pam.d/common-auth. While logged in as a regular user I can reset a password from a terminal window and ...
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0answers
521 views

How to make simple system user authentication work with postfix/dovecot on 12.10?

I have been wrestling on this a LOT. I never properly understood but I presume that authentication by the system users is done with PAM and the default authentication method for both Dovecot and ...
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0answers
22 views

Can login via ssh, but not system tty

Here's something weird. I can: ssh xyz@localhost provide my password, and login as xyz. However, I if hit ctrl-alt-F3 to go to the system prompt, and try to login as the same user xyz I get a ...
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0answers
24 views

Ubuntu 14.04 logon weirdness

Something weird has happened to my 14.04 installation Now at the login screen I can simply click in the box where you enter the password and it logs me in without any need for a password Is this not ...
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0answers
26 views

How to use pamusb to ONLY autologin

Is it possible to configure pamusb to only handle the login authentication? Right now all my authentication can be done with an usb stick, which means sudo and other stuff can be run by any random ...
0
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0answers
24 views

Restrict Direct User Login with SSH but Allow SSH Access from Single User

I have a user (a) whose direct login must be restricted except for when user is ssh'd from a particular user (b). For all other users direct login must be restricted. Is there any way to accomplish ...
0
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0answers
170 views

Subversion (svnserve) authentication against system users via saslauthd with PAM (12.04LTS)

I've read many posts here and elsewhere, none really satisfies my question. I'm trying to get svnserve to authenticate users via sasl using the PAM method (ie, authenticate via system users). I've ...
0
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0answers
68 views

Ubuntu 12.04: pam_motd sometimes displays only partial MOTD

This isn't a very big deal but it really irritates me somehow. We have a large number of machines running Ubuntu 12.04 (server/amd64) which i frequently ssh into. We have the standard set-up for this ...
0
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0answers
10 views

Match-on-card Logon

I am interested in developing a Match-on-card Logon functionality for users on Ubuntu. I've searched through PAM modules, in Ubuntu Software Center, and with Google, and found nothing that would help ...
0
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0answers
111 views

CUPS isn't allowed to access SSSD for authentication

I'm running Ubuntu 14.04. The CUPS server requires authentication for all print jobs. If I send a job as a domain user I get the following errors. Any help would be appreciated. I can't find anything ...
0
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0answers
22 views

Allow alternate login method to decrypt home folder

I updated and rebuilt the guide for unlocking *buntu and derivatives via Common Access card here, and I've run into a sort of snag with logging into the DM (likely due to an encrypted home folder.) It ...
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0answers
60 views

After ldap and pam installation I cannot log in my computer

after ldap (Server) and pam (client) installation I cannot log with my user or my root in my computer. Maybe I configured wrong in pam. But I know password for root and ldap admin. After reboot I ...
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0answers
20 views

what is PAM.d directory usage

I saw pam.d directory on the etc directory. What is PAM and its usage . I saw that for the first time in here. Is that for authentication users ?
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0answers
384 views

pam_systemd delays SSH login - required?

On our Saucy servers (13.10) we are seeing long delays when logging into the systems via SSH. I figured out it is related to the line session optional pam_systemd.so in ...
0
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0answers
306 views

Add all new users and guest user to a group dynamically on ubuntu 14.04

I would like to add all the users (current, new, guest) to a particular group, lets say "audio" dynamically. Can you tell me how I can accomplish this ?
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28 views

How to change location of .config directory

My home directory is located on a network filer with fixed quota. I'm running out of my quota as different applications saving their data in home directory. For example google-chrome, storing data ...
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0answers
177 views

PAM authentication failure

I got a dedicated server from a reputable hosting company. Unfortunately, they're one of those companies that thinks enabling root access is a good idea. I've successfully disabled root access and ...
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0answers
90 views

libnss-extrausers change password

I have Ubuntu 12.04. Installed libnss-extrausers and configured nsswitch.conf. Now, users registered in /var/lib/extrausers/{passwd,group,shadow} are recognized by the system and can login. However, ...
0
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0answers
103 views

Running xrandr With pam_exec

Can anyone tell me why xrandr doesn't work when I run it using pam_exec? I'm having the same issue as 12.04 Resolution Changes on Lock + KVM only in 13.10, but I think I'm close to a solution. It's ...