siblogga.it.		30 IN SOA dns.comune.siena.it. postmaster.comune.siena.it. (
				2015112701 ; serial
				7200       ; refresh (2 hours)
				3600       ; retry (1 hour)
				7200       ; expire (2 hours)
				1800       ; minimum (30 minutes)
				)

Name servers:
siblogga.it.		30 IN NS dns.comune.siena.it.
siblogga.it.		30 IN NS ns-rtrt.iit.cnr.it.