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Top Forums UNIX for Advanced & Expert Users password verification verify password of a user for only first 8 characters Post 302248879 by amitpansuria on Monday 20th of October 2008 03:16:11 AM
Old 10-20-2008
Quote:
Originally Posted by nitin
Check this file:
/etc/pam.d/common-password

Look for:
password required pam_unix.so nullok obscure min=4 max=8 md5

Linux systems have 256 character limit. Also, you can change and/or extend the limit to 10 characters in Unices (I think!).

HTH,


Sorry for all these edits....
Nitin Smilie
Hi nitin thx for reply.

I have check thhe entry of file passwd in /etc/pam.d . the entrty for this is:

#%PAM-1.0
auth required pam_stack.so service=system-auth
account required pam_stack.so service=system-auth
password required pam_stack.so service=system-auth


so how do I change passwd limit
 

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pam_stack(8)						   System Administrator's Manual					      pam_stack(8)

NAME
pam_stack - recurse into other PAM stacks SYNOPSIS
auth required /lib/security/pam_stack.so service=foo session optional /lib/security/pam_stack.so service=foo password optional /lib/security/pam_stack.so service=foo account optional /lib/security/pam_stack.so service=foo DESCRIPTION
In a nutshell, pam_stack lets you "call", from inside of the stack for a particular service, the stack defined for any another service. The intention is to allow multiple services to "include" a system-wide setup, so that when that setup needs to be changed, it need only be changed in one place. ARGUMENTS
debug turns on debugging via syslog(3). service=name tells pam_stack.so to execute the stack defined for the service name, which will usually be another file in /etc/pam.d. EXAMPLE
/etc/pam.d/imap: auth required /lib/security/pam_stack.so service=system-auth auth required /lib/security/pam_shells.so /etc/pam.d/system-auth: auth sufficient /lib/security/pam_krb5.so auth sufficient /lib/security/pam_unix.so shadow nullok auth required /lib/security/pam_deny.so CAVEAT
Because recursion is fully supported, there is potential to really break things by having a stack call itself either directly or via mutual recursion. BUGS
Let's hope not, but if you find any, please email the author. AUTHOR
Nalin Dahyabhai <nalin@redhat.com> Red Hat Linux 2001/01/30 pam_stack(8)
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