"Password aging is a mechanism that allows the system to enforce
a certain lifetime for passwords. While this may be moderately
inconvenient for users, it ensures that passwords are changed
occasionally, which is a good security practice. Most Linux
distributions do not enable password aging by default, but it's
very easy to enable.
"By editing /etc/login.defs, you can specify a few parameters to
set the default settings for password aging..."
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