Apache is up and running. Websites are resolved into the correct IP addresses but shows " Server not found " error while accessing. Also, it is not possible connect to port 80 from localhost:
# telnet 127.0.0.1 80
telnet: connect to address 127.0.0.1: Connection refused
Reverse Proxy Server (nginx) is enabled, but stopped.
Nginx is disabled in config after Plesk 12 MU#63.
The following error appears when trying to start Nginx service:
# service nginx start
Not starting nginx as it is disabled in config
This is Plesk bug #PPPM-3281 that was fixed in Plesk 12.0 MU65
Install the latest Plesk micro-updates.