AH00534: apache2: Configuration error: No MPM loaded

Not too long ago a number of changes were applied to a local Apache2 server to fix a problem with HTTP2 support. All seem well until a recent reboot which resulted in the Apache2 failure.

The TL/DR solution was to simply disable then enable the PHP modules in use. In this scenario it is PHP7.4

sudo a2dismod php7.4

sudo a2enmod php7.4

sudo systemctl restart apache2

 

You can read more about the solution here:

https://www.linuxquestions.org/questions/linux-newbie-8/apache2-ah00111-config-variable-%24%7Bapache_run_dir%7D-is-not-defined-4175635791/

 

 

Dropbox - Apache2 - Symbolic link - Permissions woes.

Recently, a new symbolic link was included in a root html folder.

That symbolic link  resulted in the following apache2 error.log output.

AH00037: Symbolic link not allowed or link target not accessible: /var/www/html/SYMLINK

All the other symbolic links  worked as intended. Main difference being target location. This particular symbolic link was located in a Dropbox folder.

Solution:

chmod 755 ~/Dropbox

Note to self: The Dropbox folder needs a little permission adjustment.