One Day One GNU/Linux Command
=============================
passwd - Update a user's authentication tokens(s).
Summary:
Passwd is used to update a user's authentication tokens, like
password, lifetime, etc.. Passwd is configured to work through
the Linux-PAM API.
Example:
$ passwd -- Ask new passwd for your account.
# passwd user1 -- Ask new passwd for user1's account.
# passwd -l user1 -- Lock user1 account.
# passwd -u user1 -- Unlock user1 account.
# passwd -d user1 -- Remove password for user1.
# passwd -S user1 -- Show short info about user1's password.
# passwd -n 30 user1 -- Set 30days as the min lifetime of the
user1's password.
Note:
All new users should read the following topic in the man page
A) Protect your password & B) Choose a hard-to-guess password
Read: man passwd, pam
HTH :)
--
Bharathi S
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