{{tag>wordpress troubleshooting}}

====== Wordpress troubleshooting ======
===== Too many redirects problem =====
This happened after WP was installed without SSL and then after some days, SSL was added. It only happened when trying to access /wp-admin/ route.

Adding the following lines of code at the after 
//"/* Add any custom values between this line and the "stop editing" line. */"// line of wp-config.php:

  if (strpos($_SERVER['HTTP_X_FORWARDED_PROTO'], 'https') !== false)
     $_SERVER['HTTPS']='on';

In the proxy settings for nginx add these directives:

<code nginx>
...
  location / {
      proxy_set_header Host            $host;
      proxy_set_header X-Forwarded-For $remote_addr;
      proxy_set_header X-Forwarded-Proto $scheme;
      proxy_pass http://your-wordpress-docker-upstream$request_uri;
    }
...

</code>

==== Tested on ====
  * WP installed in docker container behind nginx, with Letsencrypt https


===== No new image thumbnails created when uploading new images =====
Install php-gd package. On Debian Wheezy:
  apt-get install php5-gd

  service apache2 restart
====== See also ======
  * [[wiki:wordpress_nginx|Wordpress on nginx]]
  * [[wiki:nginx_troubleshooting#nginx_seems_to_serve_from_wrong_vhost|nginx doesn't seem to serve correctly]]
====== References ======
  * https://wordpress.stackexchange.com/questions/302965/too-many-redirects-only-when-trying-to-access-wp-admin-page
  * https://wordpress.org/support/article/administration-over-ssl/#using-a-reverse-proxy
  * https://wordpress.stackexchange.com/questions/85803/no-thumbnails-generated