TuxTraining

1.) Firstly, lock the account to prevent the user from using the login until the change has been made:

# usermod -L <username>

2.) Change the password expiration date to 0 to ensure the user changes the password during the next login:

# chage -d 0 <username>

3.) To unlock the account after the change do the following:

# usermod -U <username>

chage changes the number of days between password changes and the date of the last password change. This information is used by the system to determine when a user must change her password. The chage command is restricted to the root user, except for the -l option, which may be used by an unprivileged user to determine when her password or account is due to expire.

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