When first logging on to Zabbix, the login name is admin, and the password is blank:
Change the admin password as soon as you can:
Use configuration/hosts to add a host. Make sure you link with the correct template, as this will give you a slew of items to monitor:
Here is what the monitoring/overview/triggers screen looks like:
We have set up two hosts, and you can see the status (red or green) on the right hand side.