dmz.giga.se has one IP number , which is the same as for giga.se, but the reverse is srv104.one.com. aab.se, nlp.se, nark.se, djbm.dk, shif.dk and at least 100 other hosts point to the same IP. giga.se is a domain controlled by three nameservers at b-one.nu. Two of them are on the same IP network. Incoming mail for giga.se is handled by two mailservers at one.com. They are on the same IP network. dmz.giga.se is hosted on a server in Denmark even though the hostname implies Sweden.