When installing a new website we had errors when trying to make settings for Cloudflare. The error message said:

To fix this we had to disable Wordfence by commenting out its lines in the .htaccess file:

# Wordfence WAF
#
#        php_value auto_prepend_file '/var/www/html/sites/events/summit2018/wordfence-waf.php'
#

Once the connection was made, you can uncomment the lines above in the .htaccess file.

Placing the following snippet in an .htaccess file in a directory will force all pdfs (.PDF and .pdf) there to be downloaded to the computer rather than opened in the browser. This is good for occasions when IE is caching the PDF and users aren’t seeing the latest version.

<FilesMatch "\.(?i:pdf)$">
  ForceType application/octet-stream
  Header set Content-Disposition attachment
</FilesMatch>

I needed to redirect globalwindday.org to www.ewea.org/globalwindday

A normal Apache redirect did not work.

For example:
globalwindday.org/faq would redirect to www.ewea.org/globalwindday/faq
This was a page that did not exist so therefore resulted in a 404 error.

Here are the lines added to vhosts.conf to make it work (stripping sub pages):

<VirtualHost *:80>
        ServerName  globalwindday.org
        ServerAlias www.globalwindday.org
        # Redirect permanent / http://www.ewea.org/globalwindday/   <-- This did not work
        RewriteEngine On
        RewriteCond %{HTTP_HOST} globalwindday.org [NC]
        RewriteRule ^(.*)$  http://www.ewea.org/globalwindday/ [R=301,NC]
</VirtualHost>

As constructed from this reference page:
https://gist.github.com/ScottPhillips/1721489

What if another web site owner is stealing your images and your bandwidth by linking directly to your image files from his web site? You can prevent this by adding this to your .htaccess file:

RewriteEngine on
RewriteCond %{HTTP_REFERER} !^$
RewriteCond %{HTTP_REFERER} !^http://(www\.)?mydomain.com/.*$ [NC]
RewriteRule \.(gif|jpg)$ - [F]

Replace mydomain.com with your actual domain name. With this code in place, your images will only display when the visitor is browsing http://mydomain.com. Images linked from other domains will appear as broken images.

If you’re feeling particularly nasty, you can even provide an alternative image to display on the hot linked pages — for example, an image that says “Stealing is Bad … visit http://mydomain.com to see the real picture that belongs here.” Use this code to accomplish that:

RewriteEngine on
RewriteCond %{HTTP_REFERER} !^$
RewriteCond %{HTTP_REFERER} !^http://(www\.)?mydomain.com/.*$ [NC]
RewriteRule \.(gif|jpg)$ http://www.mydomain.com/dontsteal.gif [R,L]

This time, replace mydomain.com with your domain name, and replace dontsteal.gif with the file name of the image you’ve created to discourage hot linking.