Drupal File Location(s)

Hi,

Can anyone tell me where/which/what files in Drupal 8.x perform the system environment queries? I’m having a problem on the ‘Drupal Requirements Problem’ page whereby it complains about Apache 2.2.15, which is the default, stable Apache install for CentOS 6.9, and I’m hoping to somehow bypass the Apache query. I’ve combed through my Apache logs as well as a lot of files in /core but I don’t know exactly what I’m looking for so now I’m asking the community for some help.

Many thanks!

Drupal version: 


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