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Account Lockout on Redhat

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Operating Systems Linux Red Hat Account Lockout on Redhat
# 1  
Old 01-18-2012
Account Lockout on Redhat
On a redhat linux 4 server, how to find if there is an account lockout duration is set. Is it configured under pam or /etc/shadow? what entries I need to find out? Is it pam_time.so module?

I desperately need an answer because on one of the servers, no one was able to login through any account (not from ssh or through console), and repeated reboots didn't help either and just when everybody was about to give up, suddenly everyone was able to log in.

What could it be, please recommend.

Regards
# 2  
Old 01-19-2012
and check your
Code:
 /etc/pam.d/system-auth

settings

alternatively to find out what went wrong, check your /var/log/faillog
# 3  
Old 01-19-2012
well that is what my /etc/pam,d/syste,-auth file looks ike, does it indicate something set incorrectly?

PHP Code:
#%PAM-1.0
# This file is auto-generated.
# User changes will be destroyed the next time authconfig is run.
auth        required      /lib/security/$ISA/pam_env.so
auth        sufficient    /lib/security/$ISA/pam_unix.so likeauth nullok
auth        sufficient    /lib/security/$ISA/pam_ldap.so use_first_pass
auth        required      /lib/security/$ISA/pam_deny.so

account     required      /lib/security/$ISA/pam_unix.so
account     [default=bad success=ok user_unknown=ignore service_err=ignore system_err=ignore] /lib/security/$ISA/pam_ldap.so
account     sufficient    /lib/security/$ISA/pam_succeed_if.so uid < 100 quiet
account     required      /lib/security/$ISA/pam_permit.so

password    requisite     /lib/security/$ISA/pam_cracklib.so retry=3
password    sufficient    /lib/security/$ISA/pam_unix.so nullok use_authtok md5 shadow
password    sufficient    /lib/security/$ISA/pam_ldap.so use_authtok
password    required      /lib/security/$ISA/pam_deny.so

session     required      /lib/security/$ISA/pam_limits.so
session     required      /lib/security/$ISA/pam_unix.so
session     optional      /lib/security/$ISA/pam_ldap.so 
# 4  
Old 01-19-2012
In what way were they unable to login? Were you getting connection timed out or passwords refused, or what?
# 5  
Old 01-21-2012
/var/log/messages and/or /var/log/secure should show you why the logins were denied.
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