Monday, June 8, 2009

Httpd configuration for including expire times in response http header

  • First, you need to compile httpd using --enable-expires option. Then it's compiled with expire module built-in your httpd binary(You can check it like, > httpd -l).
  • Second, configuration file should include following setting.
    ExpiresActive On
    ExpireByType image/gif A25920000
    ExpireByType image/png A25920000
    ExpireByType image/jpg A25920000
    ExpireByType image/jpeg A25920000
    This means image file has its expire time as 2592000 seconds later (one month from now)
  • Now, you can check whether expire information is included in the response header like below

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