not authoritative

[Cristiano]

please me resolve this problem.
my start for bind gerenate this error
tank you

Sep  8 16:37:30 dns named[1912]: Zone "domain1.com" (file domain1.com): No
 default TTL set using SOA minimum instead
Sep  8 16:37:30 dns named[1912]: master zone "domain1.com" (IN) loaded
(seria
l 1999090801)
Sep  8 16:37:30 dns named[1912]: Zone "domain2.com" (file domain2.com): No
default TTL
 set using SOA minimum instead
Sep  8 16:37:30 dns named[1912]: master zone "domain2.com" (IN) loaded
(serial 1999
090801)
Sep  8 16:37:30 dns named[1912]: listening on [127.0.0.1].53 (lo)
Sep  8 16:37:30 dns named[1912]: listening on [xxx.xxx.xxx.xxx].53 (eth0)
Sep  8 16:37:30 dns named[1912]: listening on [192.168.1.1].53 (eth1)
Sep  8 16:37:30 dns named[1912]: Forwarding source address is [0.0.0.0].1037
Sep  8 16:37:30 dns named[1913]: Ready to answer queries.
Sep  8 16:37:39 dns named[1913]: Sent NOTIFY for "domain3.com IN SOA"
(domain3.com ); 1 NS, 1 A
Sep  8 16:37:47 dns named[1913]: Err/TO getting serial# for "dns2.nic.it"
Sep  8 16:37:48 dns named-xfer[1918]: [193.205.245.8] not authoritative for
dns2
.nic.it, SOA query got rcode 0, aa 0, ancount 0, aucount 2