Linux password lockout

I have a Fedora core 4 box and I want to lock a user account if someone tries an brute force on the password.  I want to also be able to unlock the account after a set period of time.  Is this possible with Fedora 4?
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Check the link ahoffmann provided and to install it in Fedora as root type:

yum install pam_abl
Mohan ShivaiahCommented:
Hi ,
Use the command passwd -l user_name  --for locking the account
and passwd -u user_name  --for unlocking the account.
Dushan De SilvaTechnology ArchitectCommented:
I can suggest you to put cron job.

BR Dushan
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