topic Re: Linux User authentication by PAM in Operating System - Linux

Linux User authentication by PAM

Rameshrajan — Fri, 30 Jan 2004 15:14:10 GMT

Hi experts,

I have a lionux user account which was not able to login even after password resets. It always says "Login Failure". I think it is something to do with PAM authentication. Do some one have an idea how to reset the PAM Access failure counts? Any help is highly appreciated

Regds
Ramesh

Re: Linux User authentication by PAM

K.C. Chan — Fri, 30 Jan 2004 15:21:26 GMT

Ramesh,
you you tried loging in with other users? Just trying to eliminate user-errrrr aspect of it.

Re: Linux User authentication by PAM

Stuart Browne — Fri, 30 Jan 2004 22:22:33 GMT

Some more details here please.

Log in using what protocol?

Log in using what user?

It quite possibly has something to do with PAM, but as far as I'm aware, it doesn't keep score on how many bad user attempts you've made and lock you out, unless you've already tweaked the configuration.

Re: Linux User authentication by PAM

Vijaya Kumar_3 — Sat, 31 Jan 2004 12:55:41 GMT

I hope you mess up with /etc/pam.d/system-auth. Try to run authconfig program to make sure everything related to authentication with PAM works just fine.

Thanks
Vijay

Re: Linux User authentication by PAM

Steven E. Protter — Sat, 31 Jan 2004 20:55:53 GMT

from the console

tail -f /var/log/messages

Then attempt a login.

This will tell you whether the login attempt even gets to the point where it talks to the server.

You may also want to check the configuration of the firewall:

service ipchains stop
service iptaqbles stop

Try the login again, because the firewall can be messing with you.

SEP

Re: Linux User authentication by PAM

Alexander Chuzhoy — Sun, 01 Feb 2004 01:39:52 GMT

The first thing I would do is to go to
/etc/security folder and do less on access.conf + time.conf files

These are mostly used to limit users' login by console/time .
Try to locate the line that starts without preceding #. This means that the line actually does limit someone.....

Best regards...