olemus
kontekstist sõltuv loa andmise vahend
= a content-dependent permit control device
(a) pääsu reguleerimise mehhanismides, näiteks
- SELinuxis https://wiki.gentoo.org/wiki/SELinux/Tutorials/How_SELinux_controls_file_and_directory_accesses
- SPDL-keeles http://seedit.sourceforge.net/doc_devel/simplified_policy_manual/node23.html
- Apache'is http://www.askapache.com/htaccess/apache-authentication-in-htaccess/
(b) failis robots.txt
https://technicalseo.com/crawl-indexation/directives/robots-txt/