Could not reliably determine the server's fully qualified domain name

Question

I have just installed Apache 2.2.17, and I am using it first time.

Now when I try to start the server using the command service httpd start it gives me

Answer 1

who are still couldnt resolve the problem and using mac then follow this

1.goto the root folder /

2. cd usr/local/etc/apache2/2.4

3.sudo nano httpd.conf

4.change #servername to ServerName 127.0.0.1:8080 press ctrl+o,+return+ctrl x

5.then restart the server apachectl restart