yppasswd length limit

[Ian Mortimer]

On Fri, 2005-01-14 at 01:09, zhicheng wang wrote:

> Thanks for the message and that works well for us. But
> how passwd changes nis passwd? i have read the man
> page for passwd and in the Internet, nowhere said
> passwd can change nis passwd, so never even thinking
> of trying this way.
> 
> Still i need to know how this happens and would be
> most grateful if you can brief let me know more.

It works through pam.  If you look at /etc/pam.d/system-auth you
should see an entry like:

   password    sufficient    /lib/security/$ISA/pam_unix.so nullok
use_authtok md5 shadow nis

The nis argument at the end of the line is the key.

/etc/pam.d/system-auth is invoked by /etc/pam.d/passwd


-- 
Ian