password limits of 8 characters on FC4

Ian Mortimer ian at physics.uq.edu.au
Mon Jul 18 04:05:58 UTC 2005


On Sat, 2005-07-16 at 21:16 -0500, Gregory P. Ennis wrote:

> I checked both files and the proper entry is present in both files.

What does the encrypted password look like in /etc/shadow (2nd field,
delimited by :).

If it's 13 characters starting with [a–zA–Z0–9./] it's crypt encrypted
and limited to 8 characters.  If it's 35 characters long and starts
with $1$ it's md5 encrypted and can be longer than 8 characters.

Even if md5 is set in authconfig and in system-auth, a crypt encrypted
passwd will still be recognised in /etc/shadow.


---
Ian




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