Editing http.conf and my.cnf - where are the correct files?

Hi,
I am using a CRM system that requires specific configuration settings on the server. Yesterday I added some of the specificastions to the http.conf file located at:

nano /etc/apache2/conf/httpd.conf

Then I noticed when |I re-started the server all my changes disappeared. I later spotted the message at the foot of http.conf file saying this particular file should not be edited. It says we should use include files.

My question is, where do I find the include file to add my changes?

I need to add/change things like:

Header: Referrer-Policy same-origin
Header: X-Powered-By

In addition I need to add these values:
max_connections 151
thread_cache_size 9
key_buffer_size 8.00 MB
query_cache_size 40 MB
tmp_table_size 16 MB
max_heap_table_size 16 MB

I tried adding them to the following file (after google search it pointed me to that file):
nano /etc/my.cnf
But the changes don't take effect.

Is someone able to tell me what the correct files are that I should be editing?

Kind regards

 

Hi both,

thank you so much for your help - that was exactly what I needed