Pluggable Authentication Modules handle authentication tasks of applications or services running on the system.

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2answers
4k views

Can I create a local only guest account?

Is it possible to create a "guest" account in Linux? by "guest" account I mean an account that does not require a password to log in graphically. I want this account for when people come over and are ...
5
votes
1answer
2k views

What happens when your password expires and you're using key authentication?

on one of the boxes I don't control at work I use ssh keys to log in. Our passwords are set to expire after a few months. What happens if I don't reset my password and it expires? will I still be able ...
3
votes
1answer
2k views

Automatically mount encrypted home folder on login

I'm looking into encrypting my home folder with Truecrypt, and mounting it after I've logged in, which should be pretty straightforward. However, it occurred to me that it should be theoretically ...
7
votes
1answer
649 views

What steps does the system go through when handling an SSH connection?

What steps does the system go through when handling an SSH connection? We try to log in via ssh sshd starts pam and pam module to authenticate us Depending on pam configuration, we need to provide ...
7
votes
5answers
16k views

Program for decrypt linux shadow file

Is there any program or script available for decrypt Linux shadow file ?
42
votes
2answers
11k views

Why is there a big delay after entering a wrong password?

I notice a weird (well, according to me) thing about passwords. For example, if I type an incorrect password during login, there will be a few seconds' delay before the system tells me so. When I try ...
7
votes
4answers
989 views

How to set up two-factor authentication with OTP on FreeBSD?

I have a FreeBSD hosted server that I like to be able to get to from anywhere. Normally I use SSH publickey to log in, or if I don't have my SSH private key available then I might use regular password ...
4
votes
6answers
920 views

Identity Management with ActiveDirectory

What is the best, or most reliable, way to manage my Unix/Linux user accounts with ActiveDirectory? Or, is this even feasible?