Apache Cache-control 적용 고뇌

1. 배경

cdn 적용하려는데 cache-control 이 public 이어야 한다고 합니다.

2. 적용 과정

<ifModule mod_headers.c>
#Header unset ETag
 <FilesMatch “.(jpg|jpeg|gif|png)$”>
Header set Cache-Control "public"
Header set Pragma "cache"
</FilesMatch>
</ifModule>

안됨.

<ifModule mod_headers.c>
#Header unset ETag
Header set Cache-Control "public"
Header set Pragma "cache"
</ifModule>

됨.

<FilesMatch “.(jpg|jpeg|gif|png)$”>
<ifModule mod_headers.c>
#Header unset ETag
Header set Cache-Control "public"
Header set Pragma "cache"
</ifModule>
</FilesMatch>

안됨.

<IfModule mod_headers.c>
    Header set Connection keep-alive
    <FilesMatch '\.(jpg|jpeg|png)$'>
        Header set Cache-Control 'max-age=1209600, public'
    </FilesMatch>
</IfModule>

안됨.