/etc (System Configuration)
The /etc directory on AL2023 contains system-specific configuration.
By default, AL2023 images come with /etc on the root filesystem
and writable by privileged users.
Note
It is common for applications (including systemd) to keep default
configuration under
/usr (System Resources)
which can be overriden by placing configuration in
/etc (System Configuration).
For these applications, changing files in
/usr (System Resources) rather
than overriding default configuration in /etc will likely
result in the changes being overriden when the package is updated.
