Yesterday, after some problems, finally I could install Ubuntu Server 14.04.2 and gnome GUI. Then I close the server. This morning, when I open it again it stops in this line: AH00558: apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1 set the 'ServerName' directive globally to suppress this message.
I've been looking for in Google, there are a lot of solutions, but no one works for me. Sure, because I'm new and there are a lot of things I don't know, but can somebody tell me how can I fix this problem? Please, step by step, I've tried to restart using recovery mode - root, but all commands fails.