In page it says in order to solve a problem in Apache 2.4, we have to create a configuration file inside the conf-available directory. For example servername.conf.
sudo vi /etc/apache2/conf-available/servername.conf
And inside this we just need to add one line
ServerName localhost
I can do that but how do I save it ?
nano
orgedit
editor if you don't know how to usevi
still if you want to use, just follow the answer of steeldriver's comment. – d a i s y Jul 26 '16 at 11:52