Turnkey Wordpress 14.1 incompatability with Divi Theme

I found the file referred to in the Divi forum and modified it to this:

# Support TurnKey Linux by adding credit to footer
<Location />
    AddOutputFilterByType SUBSTITUTE text/html
</Location>

The original looked like this:

# Support TurnKey Linux by adding credit to footer
<Location />
    AddOutputFilterByType INFLATE;SUBSTITUTE;DEFLATE text/html
    Substitute "s|</head>|<style type='text/css'> #turnkey-credit { font-family: Tahoma,Sans,Arial,Helvetica,Verdana,sans-serif; font-size: 11px; text-align: center; } #turnkey-credit a { text-decoration: none; } #turnkey-credit a:hover { text-decoration: underline; } body.wp-admin #turnkey-credit, body#image #turnkey-credit, body#media-upload #turnkey-credit { display: none; } </style></head>|i"
    Substitute "s|</body>|<div id='turnkey-credit'> <div style='clear: both;'> <a href='/wordpress'>WordPress Appliance</a> - Powered by <a href=''>TurnKey Linux</a> </div> </div></body>|i"
</Location>

The modification appeared to only make a single change which was to remove the Turnkey Linux WordPress footer credit at the bottom of the WordPress Admin logon page. I can't find any other change. I don't know if that breaks any agreement I have with Turnkey Linux to display credit information.

Anyway problem solved. If anyone knows if I'm breaking any copywrite or crediting rules, please let me know and I'll look for another solution.

Oddly, I'm getting the same error again. Any ideas?

I had developer and support from ElegantBuilder both on my ass about this issue and was able to solve it by disabling the substitute module on the global Apache server settings.  Have not seen any side efects since but don't do much beside insure site is up.

We'd rather you kept the TurnKey credit footer there, but obviously TurnKey isn't much value to you if it breaks completely with your site how you want it. If it's breaking things then you need to disable it. No hard feelings at all. Although if you'd love to help spread the word in other ways that's always appreciated! :)

I'm assuming that the theme must be using some Apache substitution or similar somewhere and combined together they are breaching the 1MB Apache 2.4 limit.

So the best workaround at this point is to disable the TurnKey credit. Another option could be to install Apache from the testing repo (it's got v2.4.20) but I wouldn't recommend using that for production as it won't get auto security updates and being testing, things are likely to change...

I was able to identify the problem, though unfortunately I was not able to resolve it. The issue is that the builder's requests exceed the max line length imposed by Apache ModSubstitute as indicated by the following error:

[Wed May 04 23:59:31.340064 2016] [substitute:error] [pid 9907] [client 108.76.136.227:56370] AH01328: Line too long, URI /wp-admin/admin-ajax.php, referer: http://www.site.com/wp-admin/post-new.php?post_type=page

The solution is to increase the max line length by adding the following to your .htaccess file:

<IfModule mod_substitute.c>
SubstituteMaxLineLength 10M
</IfModule>

However, it appears that the version of Apache you have installed contains a bug where it does not recognize the "SubstituteMaxLineLength" directive. To resolve the issue you need to install a newer version of Apache. I recommend contacting whoever is managing your server to provide them with these details. They should be able to resolve the issue. 
 

Regardless, I suggest that you do a search, then you'll know for sure. So from the commandline, run this:

find /var/www -type f -name '.htaccess'

Otherwise, you'll need to edit the default Apache Wordpress site file directly. It should be /etc/apache2/sites-available/wordpress.conf if you want to edit it by hand from the commandline. Personally, that's my preference, but Webmin is another option.

@Joe Sko - Are you trying to SSH to it or us the Web Admin interface?  I am not somewhere I can check the first but the second is webmin so here is the Wiki link ->  https://doxfer.webmin.com/Webmin/Apache_Webserver#Editing_.htaccess_files