# tail /var/log/messages
Feb 5 10:03:08 89237 named[8054]: error (network unreachable) resolving 'ns2.isc.ultradns.net/A/IN': 2001:502:f3ff::e8#53
Feb 5 10:03:08 89237 named[8054]: error (network unreachable) resolving 'pdns196.ultradns.biz/AAAA/IN': 2001:500:3682::12#53
Feb 5 10:03:08 89237 named[8054]: error (network unreachable) resolving 'ns1.isc.ultradns.net/A/IN': 2001:502:f3ff::e8#53
Feb 5 10:03:08 89237 named[8054]: error (network unreachable) resolving 'ns2.isc.ultradns.net/AAAA/IN': 2001:502:f3ff::e8#53
Feb 5 10:03:08 89237 named[8054]: error (network unreachable) resolving 'pdns196.ultradns.biz/A/IN': 2001:503:7bbb:ffff:ffff:ffff:ffff:ff7e#53
Feb 5 10:03:08 89237 named[8054]: error (network unreachable) resolving 'ns1.isc.ultradns.net/AAAA/IN': 2001:502:f3ff::e8#53
Feb 5 10:03:08 89237 named[8054]: error (network unreachable) resolving 'pdns196.ultradns.biz/AAAA/IN': 2001:503:7bbb:ffff:ffff:ffff:ffff:ff7e#53
Feb 5 10:03:08 89237 named[8054]: error (network unreachable) resolving 'pdns196.ultradns.biz/A/IN': 2001:503:e239::3:2#53
Feb 5 10:03:08 89237 named[8054]: error (network unreachable) resolving 'pdns196.ultradns.biz/AAAA/IN': 2001:503:e239::3:2#53
Feb 5 10:06:15 89237 named[8054]: client 141.212.121.187#41003: query (cache) 'www.google.com/A/IN' denied