Summary
fns1.sgh.waw.pl has one IP number , which also has a corresponding reverse pointer.
dns.b7.pl,
ns2.tamis.pl,
ns4.mixol.org,
ns1.cepter.net,
ns2.cepter.net and at least four other hosts cnames to this hostname.
x.gd,
z.gd,
nlp.to,
elkom.pl,
tu15.com and at least 100 other hosts point to the same IP.
x.gd,
z.gd,
tq.pl,
ga.pl,
5l.pl and at least 100 other hosts use this as a nameserver.
root.fns1.sgh.waw.pl are subdomains to this hostname.
sgh.waw.pl is a domain controlled by four nameservers. Two of them are on the same IP network. Incoming mail for
sgh.waw.pl is handled by two mailservers at
sgh.waw.pl themselves. They are on the same IP network.
fns1.sgh.waw.pl is hosted on a server in Poland.