Restricting user from changing password

<yambe:breadcrumb>Server_administration_tips_and_tricks|Server administration tips and tricks</yambe:breadcrumb>

Restricting user from changing password

Sometimes on shared lab machines it may be desired to prevent users from changing passwords. To do so use:

chage -m 1000 <username>

This would prevent user from changing his/her password for next 1000 days.

After this change user password once and the newly set password would be locked for given number of days.