$ sudo /etc/rc.d/local_unbound restart
Stopping local_unbound.
Waiting for PIDS: 90324.
Starting local_unbound.
Waiting for nameserver to start... good
$ host izovat.ua.
izovat.ua has address 213.108.45.78
Host izovat.ua not found: 2(SERVFAIL)
$ host -t ns izovat.ua.
Host izovat.ua not found: 3(NXDOMAIN)
# dnstracer -s . -c -q ns izovat.ua
Tracing to izovat.ua[ns] via A.ROOT-SERVERS.NET, maximum of 3 retries
A.ROOT-SERVERS.NET [.] (198.41.0.4)
|\___ sns-pb.isc.org [ua] (2001:0500:002e:0000:0000:0000:0000:0001) Not queried
|\___ sns-pb.isc.org [ua] (192.5.4.1)
| |\___ ns2.ukrnames.com [izovat.ua] (195.123.1.2) Got authoritative answer
| |\___ ns4.ukrnames.ua [izovat.ua] (195.123.1.222) Got authoritative answer
| \___ ns1.ukrnames.com [izovat.ua] (104.131.20.233) Got authoritative answer
|\___ pch.ns.ua [ua] (2001:0500:0014:6012:00ad:0000:0000:0001) Not queried
|\___ pch.ns.ua [ua] (204.61.216.12)
| |\___ ns2.ukrnames.com [izovat.ua] (195.123.1.2) Got authoritative answer
| |\___ ns1.ukrnames.com [izovat.ua] (104.131.20.233) Got authoritative answer
| \___ ns4.ukrnames.ua [izovat.ua] (195.123.1.222) Got authoritative answer
|\___ in1.ns.ua [ua] (2604:ee00:0000:0101:0000:0000:0000:0040) Not queried
|\___ in1.ns.ua [ua] (74.123.224.40)
| |\___ ns4.ukrnames.ua [izovat.ua] (195.123.1.222) Got authoritative answer
| |\___ ns2.ukrnames.com [izovat.ua] (195.123.1.2) Got authoritative answer
| \___ ns1.ukrnames.com [izovat.ua] (104.131.20.233) Got authoritative answer
|\___ ho1.ns.ua [ua] (2001:067c:0258:0000:0000:0000:0000:0001) Not queried
|\___ ho1.ns.ua [ua] (195.47.253.1)
| |\___ ns2.ukrnames.com [izovat.ua] (195.123.1.2) Got authoritative answer
| |\___ ns4.ukrnames.ua [izovat.ua] (195.123.1.222) Got authoritative answer
| \___ ns1.ukrnames.com [izovat.ua] (104.131.20.233) Got authoritative answer
|\___ cd1.ns.ua [ua] (2001:0678:0004:0000:0000:0000:0000:0009) Not queried
\___ cd1.ns.ua [ua] (194.0.1.9)
|\___ ns2.ukrnames.com [izovat.ua] (195.123.1.2) Got authoritative answer
|\___ ns1.ukrnames.com [izovat.ua] (104.131.20.233) Got authoritative answer
\___ ns4.ukrnames.ua [izovat.ua] (195.123.1.222) Got authoritative answer