RE: How Is Apache2 on Ubuntu 18.04 LTS Not Working on my End?

Hello,

I just set up, from https://www.linode.com/docs/websites/hosting-a-website-ubuntu-18-04/, 3. on the first page of this articulation on serving websites w/ the LAMP stack.

…

I tried to change out the file. I have been unsuccessful so far. I think the "<" character is not working. I can retry at:

KeepAlive Off

    <IfModule mpm_prefork_module>
        …
        …
        …
    </IfModule>

But…

Where do I place these lines of text? I found in the /etc/apache2/apache2.conf file that there is a section w/ KeepAlive On but it is not at the end of that file.

Seth

P.S. When you or anyone you know has some time, please try to explain anything on your end to make me understand where I should place this text and how to make my "<" character work. That is all for now.