I have an Ubuntu 14.04 LTS server, multiple websites running on it. http://martion.alomvilag.hu is one of them.

Site is usually working, but from time-to-time it provides a 403 response and Forbidden message:

403 Forbidden

I checked error logs, and the only error I found is this:

(24)Too many open files: [client] AH00529: /var/www/.htaccess pcfg_openfile: unable to check htaccess file, ensure it is readable and that '/var/www/' is executable

I checked resources on that and

  • no selinux on our system

  • /var, /var/www and /var/www/martion.alomvilag.hu are all 755, .htaccess is .644

My main concern is that this is only happening sometimes, without pattern and after a refresh or two it is working again. Anyway it is really unpleasant to any of our users. Do you have any advice?

  • 1
    "Too many open files" is the error you ned to fix. (hint: ulimit) – Dennis Nolte May 17 '18 at 12:44

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