С не давнего времени на сервере в логах вижу такое
Сервер 9.3-RELEASE-p2 FreeBSD 9.3-RELEASE-p2 #0 r271910:
DNS BIND 9.9.5 (Extended Support Version)
Serv-2 named[46863]: DNS format error from 184.105.66.196#53 resolving ns-os1.qq.com/AAAA: Name qq.com (SOA) not subdomain of zone ns-os1.qq.com -- invalid response
Serv-2 named[46863]: DNS format error from 120.204.202.200#53 resolving ns-os1.qq.com/AAAA: Name qq.com (SOA) not subdomain of zone ns-os1.qq.com -- invalid respons
Serv-2 named[46863]: DNS format error from 124.115.14.22#53 resolving ns-os1.qq.com/AAAA: Name qq.com (SOA) not s