/apache2/mods-available/negotiation.conf

 1<IfModule mod_negotiation.c>
 2#
 3# LanguagePriority allows you to give precedence to some languages
 4# in case of a tie during content negotiation.
 5#
 6# Just list the languages in decreasing order of preference. We have
 7# more or less alphabetized them here. You probably want to change this.
 8#
 9LanguagePriority en ca cs da de el eo es et fr he hr it ja ko ltz nl nn no pl pt pt-BR ru sv tr zh-CN zh-TW
10
11#
12# ForceLanguagePriority allows you to serve a result page rather than
13# MULTIPLE CHOICES (Prefer) [in case of a tie] or NOT ACCEPTABLE (Fallback)
14# [in case no accepted languages matched the available variants]
15#
16ForceLanguagePriority Prefer Fallback
17
18</IfModule>