Note, these instructions are for Homestead 7, so may change in future versions.
To configure Xdebug and other PHP-FPM modules, you have to go the directory shown below:-
cd /etc/php/7.2/mods-available
To disable Xdebug, edit the Xdebug ini file:-
sudo nano xdebug.ini
Comment out the first line so the Xdebug module is not loaded, so the file should look like this:-
;zend_extension=xdebug.so
xdebug.remote_enable = 0
xdebug.remote_connect_back = 1
xdebug.remote_port = 9000
xdebug.max_nesting_level = 512
Then restart PHP-FPM by running the following command:-
sudo service php7.2-fpm restart
If you’re running a different version of PHP, just edit the command as appropriate.