End users can configure their browsers to send an accept-language header that describes their language preference for the content they are accessing. The server can be configured to serve content based on the accept-language header by enabling the Negotiate Client Language checkbox under Configuration > (Select Configuration) > Virtual Server >(Select Virtual Server) > Server Setting > General > Localization.
For example, if this option is enabled, and a client sends the Accept-language header with the value fr-CH,de, when requesting the following URL:
http://www.someplace.com/somepage.html
then your server searches for the file in the following order:
The Accept-language list fr-CH,de.
http://www.someplace.com/fr_ch/somepage.html
http://www.someplace.com/somepage_fr_ch.html
http://www.someplace.com/de/somepage.html
http://www.someplace.com/somepage_de.html
Language codes without the country codes (fr in the case of fr-CH):
http://www.someplace.com/fr/somepage.html
http://www.someplace.com/somepage_fr.html
The DefaultLanguage, such as en, defined in the magnus.conf file.
http://www.someplace.com/en/somepage.html
http://www.someplace.com/somepage_en.html
If none of these are found, the server tries:
http://www.someplace.com/somepage.html
When naming localized files, keep in mind that country codes like CH and TW are converted to lower case and dashes (-) are converted to underscores (_).
Enabling the acceptlanguage setting has a performance penalty since the server has to check for content in every language specified in the accept-language according to the algorithm illustrated above.