Here is another one, the apache2 error I got, and confusing the dns setting in my local computer.
“Could not reliably determine the server's fully qualified domain name”
It was my hostname. It is set to Sugi-Satellite-5B. It conflicts somewhere. I arrange the hostname to the same name with my local site. Now I got to change it.
#sudo nano /etc/hostname ----- change the hostname here #sudo nano /etc/hostname ----- also add 127.0.1.1 yournewhostname yournewhostname - exactly I wrote in /etc/hostname
Restart the computer, and the message of “Could not reliably determine the server’s fully qualified domain name” is missing. I checked in the :
#sudo systemctl status apache2