If Nginx wont start and is pushing back the following error:
[emerg]: bind() to 0.0.0.0:80 failed (98: Address already in use)
Then it means nginx or some other process is already using port 80.
You can kill it using:
sudo fuser -k 80/tcp
And then try restarting nginx again:
service nginx start
sudo /opt/bitnami/ctlscript.sh start
