apache-cache.conf

# Cache images for one month
<FilesMatch ".(gif|jpg|jpeg|png|ico)$">
        Header set Cache-Control "max-age=2592000"
</FilesMatch>

# Cache text, CSS, and javascript files for one week
<FilesMatch ".(js|css|txt)$">
        Header set Cache-Control "max-age=604800"
</FilesMatch>

# Cache HTML files for one day
<FilesMatch ".(html|htm)$">
        Header set Cache-Control "max-age=43200"
</FilesMatch>

# Explicitly disable caching for scripts and other dynamic files
<FilesMatch "\.(pl|php|cgi)$">
        Header unset Cache-Control
</FilesMatch>