Please note that you should always install the latest version of a software for more security. I suggest you to install Apache from Ubuntu's apt package manager 'if you are on a production server'. Installing it from source on a local environment doesn't matter.
I've also been trying to do this lately.
Please follow this for the instructions of installing it, by me, with a bit more explanation.
Hope it helps.
To be clean, follow the same steps:
1) Go to http://httpd.apache.org/download.cgi
2) Right click and copy the link of the link like 'Source: httpd-2.4.41.tar.gz'
3) Go to the terminal, and enter the following commands one by one and hit enter for no confusion:
a.
cd /usr/local/src
b.
sudo wget -O- <download-link> | tar -zxf -
c.
sudo apt install libnghttp2 libpcre3 libssl build-essential -y
d. Go to http://apr.apache.org/download.cgi and copy the link like 'Unix Source: apr-1.7.0.tar.gz'
sudo wget -O- <apr-download-link> | tar -zxf -
e. Go to http://apr.apache.org/download.cgi and copy the link like 'Unix Source: apr-util-1.6.1.tar.gz'
sudo wget -O- <apr-util-download-link> | tar -zxf -
f.
sudo mv apr-<apr-version> httpd-<apache-version>/srclib/apr
g.
sudo mv apr-util-<apr-util-version> httpd-<apache-version>/srclib/apr-util
h.
cd httpd-<apache-version>
i. According to me, this configuration is better than any other. The --prefix is where apache is installed.
sudo ./configure --prefix=/usr/local/apache2 --enable-mods-shared="reallyall" --enable-mpms-shared="all"
j.
sudo make
k.
sudo make install
These directories could be altered using the Step 'i'
The apache directory is /usr/local/apache2.
The apache conf directory is /usr/local/apache2/conf.
The apache main conf file is /usr/local/apache2/conf/httpd.conf.
For more info go to http://httpd.apache.org/docs/current/install.html.
Thanks