Apache restart error on ubuntu 12.04

Question

I am trying to install phpmyadmin on ubuntu 12.04 from here

After i installed apache2 i run the below command

sudo /etc/init.d/apache2 restart

and i got the below errors, anyway how to solve this error and install phpmyadmin on ubuntu

 * Restarting web server apache2                                                                                                                 apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1 for ServerName
apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1 for ServerName
(98)Address already in use: make_sock: could not bind to address 0.0.0.0:80
no listening sockets available, shutting down
Unable to open logs
Action 'start' failed.
The Apache error log may have more information.

And when i tried localhost/phpmyadmin from browser its showing Welcome to nginx!

Answer 1

You have an Nginx webserver running on probably the same port Apache is trying to bind to. I don't know who is using this Nginx webserver, but you can stop it with:

sudo service nginx stop

Then try starting Apache again.

To see who is using which ports:

sudo netstat -nptul

Answer 2

You have a nginx webserver running that listens to port 80, so Apache can't bind to that port. You have to shut nginx down first using something like

sudo /etc/init.d/nginx stop