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Lighttpd: Set Cache-Control: public, max-age Headers For Caching Purpose

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To set Cache-Control: public, max-age headers for caching purposes in Lighttpd, you need to modify the configuration file. The default configuration file is usually located at /etc/lighttpd/lighttpd.conf.

To set the Cache-Control headers, add the following to your Lighttpd configuration file:

$HTTP["url"] =~ "\.(gif|jpg|jpeg|png|css|js)$" {
 # set cache-control headers for static files
 add_header "Cache-Control" "public, max-age=31536000, immutable";
}

This sets the Cache-Control headers to public, max-age=31536000, immutable for any URLs that end in .gif, .jpg, .jpeg, .png, .css, or .js. The max-age directive specifies the number of seconds that the resource should be considered fresh.

After making the changes, restart Lighttpd for the changes to take effect:

systemctl restart lighttpd

Note: The configuration file syntax may vary depending on the version of Lighttpd that you are using. Make sure to check the Lighttpd documentation for the correct syntax and additional options.