57.5. The acl_security.pl Access Control Script
As Chapter 52 explains, the Webmin Users module can be used to configure detailed access control settings for a particular user and module. The actual form for editing these settings is generated by the acl_security.pl script in the module's directory, covered in Section 56.1 “Module Access Control”. Because this module lets an administrator define which UNIX users a particular Webmin user can edit Cron jobs for, it has one of these scripts as well.
As you can see by opening the file in an editor, it contains the required acl_security_form and acl_security_save functions. The first prints HTML for form inputs in a 4-column table, with their current settings based on the contents of the hash reference ...
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