ns2.tux.hu has one IP number , but the reverse is alfoldnet.hu. koronahotel.com and puspokladany.net point to the same IP. v8.hu, tux.hu, doza.hu, hubay.hu, aurum.hu and at least 36 other hosts use this as a nameserver. tux.hu is a domain controlled by two nameservers at tux.hu themselves. They are on different IP networks. Incoming mail for tux.hu is handled by one mailserver also at tux.hu. tux.hu has one IP number , which also has a corresponding reverse pointer. ns2.tux.hu is hosted on a server in Hungary.