09-01-2011
Local files don't work that way, not anywhere I've ever been.
You could change their ownership to a different user and prevent others from reading them. When they try and open them they'll get "permission denied". To get into them they'd need to su into that user.
You could also install truecrypt and make a volume with it, not truly a directory, it'd be a program they have to run to get into it.
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LEARN ABOUT CENTOS
pwscore
PWSCORE(1) General Commands Manual PWSCORE(1)
NAME
pwscore - simple configurable tool for checking quality of a password
SYNOPSIS
pwscore [user]
DESCRIPTION
pwscore is a simple tool for checking quality of a password. The password is read from stdin.
The tool uses the libpwquality library to perform configurable checks for minimum length, dictionary checking against cracklib dictionar-
ies, and other checks.
It either reports an error if the password fails any of the checks, or it prints out the password quality score as an integer value between
0 and 100.
The password quality score is relative to the minlen setting in the configuration file. But in general values below 50 can be treated as
moderate quality and above it fairly strong quality. Any password that passes the quality checks (especially the mandatory cracklib check)
should withstand dictionary attacks and scores above 50 with the default minlen setting even fast brute force attacks.
OPTIONS
The first and only optional argument is the user name that is used to check the similarity of the password to the username.
FILES
/etc/security/pwquality.conf - The configuration file for the libpwquality library.
RETURN CODES
pwscore returns 0 on success, non zero on error.
SEE ALSO
pwscore(1), pwquality.conf(5), pam_pwquality(8)
AUTHORS
Tomas Mraz <tmraz@redhat.com>
Red Hat, Inc. 10 Nov 2011 PWSCORE(1)