Add expires header without mod_expires?

Question

I know that I can add expires header using mod_expires. However, what can I do if the Apache server doesn\'t have mod_expires installed and I don\'t want to route the access

Answer 1

You could use mod_header to set the header field manually:

Header set Expires "..."

But since Expires requires an absolute time, use Cache-Control’s max-age parameter for times relative to the access time:

Header merge Cache-Control max-age=3600