SSH Login with no password

mperkel · 01-16-2007, 06:50 AM

How do you set up an SSH account to use no passwords? I'm not looking for a key pair trick. What I literally want to do is make an account that anyone can log into with either no password or any password. How do I do that?

dgar · 01-16-2007, 08:26 AM

I have a hard time imagining why.... but you can configure ssh to use PAM, and configure PAM to just always accept whatever is thrown at it for SSH.

mperkel · 01-16-2007, 08:30 AM

I only want to have this for specific account names. How would I do that?

What I'm doing is allowing anyone to log into certain trap accounts with any password but as soon as they log in then I run a script that locks out their IP address.

dgar · 01-16-2007, 08:42 AM

PAM - Pluggable Authentication Module(s)

You could have a field day scripting whatever authentication scheme you please.

pam_script installation and examples:
http://linux.bononline.nl/linux/pamscript/01/build.html

DO NOT screw with '/etc/pam.d/login' like the examples. One mess up and you can't login to your machine anymore. If this happens reboot your machine with: init=/bin/bash on the kernel command line.