As I am working in a corporate environment where developers faces firewall issues, none of the other answers resolved my issue.
As the port is not used by Skype, but by some other internal applications,
I followed the below steps to resolve the issue:
Step 1 - From the XAMPP Control Panel, under Apache, click the Config button, and select the Apache (httpd.conf).
Inside the httpd.conf file, somehow I found a line that says:
Listen 80
And change the 80 into any number / port you want. In my scenario I’m using port 8080.
Listen 8080
Still from the httpd.conf file, I found another line that says:
ServerName localhost:80
Change 80 to 8080.
ServerName localhost:8080
Step 2 - From the XAMPP Control Panel, under Apache, click the Config button again, but this time select the Apache (httpd-ssl.conf). Inside the httpd-ssl.conf file, find line that says
Listen 443
And change the 443 into any number / port you want. I’ll using 4433 as the new port number.
Listen 4433
Still from the httpd-ssl.conf file, find another line that says
<VirtualHost _default_:443>
ServerName localhost:443
And change 443 to 4433.
<VirtualHost _default_:4433>
ServerName localhost:4433
Remember to save the httpd.conf and httpd-ssl.conf files after performing some changes. Then restart the Apache service.
Looks like you need to uncomment the following:
#LoadModule userdir_module libexec/apache2/mod_userdir.so
and
#Include /private/etc/apache2/extra/httpd-userdir.conf
Then in httpd-userdir.conf you may need to uncomment:
#Include /private/etc/apache2/users/*.conf
Lastly you would need to create /private/etc/apache2/users/kevin.conf if it doesn't exist. I think it should look something like this:
<Directory "/Users/kevin/Sites/">
Options Indexes MultiViews
AllowOverride None
Require all granted
</Directory>
Make sure to restart the Apache server afterwards with:
sudo apachectl restart
Best Answer
This is what helped me:
This command killed Apache server that was pre-installed on MAC OS X.