Diagnosing failed mod_pagespeed issues

LukeFive Dev

• September 18, 2018 12:44

I'm a front-end developer who has been assigned back-end server duties. Last Friday I installed mod_pagespeed on our Apache2.4/Linux/PHP7. About two days later I began to notice "500" errors on two of the larger sites we host. Today I decided to uninstall mod_pagespeed and try again later. What are best practices to diagnose what went wrong?

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  cPanelLauren

  • September 18, 2018 19:07

  Hi @LukeFive Dev That really depends on the context of the error. To diagnose that you'd want to check the apache error log for starters. You'd find it at /etc/apache2/logs/error_log
  My assumption is you'd see corresponding errors here for when you were seeing 500 errors on the site. Thanks!

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  LukeFive Dev

  • September 18, 2018 20:42

  I can find that error_log but unable to download it, and the 'tail' command doesn't want to cooperate in looking at just part of it ("option used in invalid context"). I will upload file from elsewhere in the WHM that shows the last 300 lines. I scrubbed private company info.

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  cPanelLauren

  • September 19, 2018 14:19

  HI @LukeFive Dev The errors seem to only indicate one issue: AH01797: client denied by server configuration: /home/admin/public_html/example.com/wp-content/cache/page_enhanced/www.example.com
  This is most commonly a permissions issue - you might want to take a look at apache's documentation on the error here: ClientDeniedByServerConfiguration - Httpd Wiki

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  LukeFive Dev

  • September 19, 2018 15:39

  HI @LukeFive Dev The errors seem to only indicate one issue: AH01797: client denied by server configuration: /home/admin/public_html/example.com/wp-content/cache/page_enhanced/www.example.com
  This is most commonly a permissions issue - you might want to take a look at apache's documentation on the error here:

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