ns.cernet.net

domain

ns.cernet.net has one IP number , which also has a corresponding reverse pointer. ns.edu.cn and cns.cernet.net point to the same IP. cn, dtp-lc.com, tzxhzx.net, ltagri.net and gsbyjs.com.cn use this as a nameserver. cernet.net is delegated to two nameservers, however one extra nameserver is listed in the zone. Two of them are on the same IP network. Incoming mail for cernet.net is handled by one mailserver at nic.edu.cn. cernet.net has one IP number. ns.cernet.net is hosted on a server in China.

base	record	name		ip	reverse	route	as
ns.cernet.net	a			202.112.0.44 China	-	202.112.0.0/24	AS4538 ERX-CERNET-BKB China Education and Research Network Center Tsinghua University Beijing 100084
ns.cernet.net	a			202.112.0.44 China	ns.edu.cn
cernet.net	a			202.112.0.46 China	(none)
	ns-soa	ns2.net.edu.cn			(none)		?
	ns	dns.edu.cn		202.112.0.35 China		202.112.0.0/24	AS4538 ERX-CERNET-BKB China Education and Research Network Center Tsinghua University Beijing 100084
		dns2.edu.cn (only in zone)		202.112.0.13 China		202.112.0.0/24
		ns2.net.edu.cn			(none)		?
	mx	0	sea05.nic.edu.cn	202.112.0.45 China		202.112.0.0/24	AS4538 ERX-CERNET-BKB China Education and Research Network Center Tsinghua University Beijing 100084

dot

	ip numbers of host
		ip numbers using ptr to this host
			hostnames sharing ip with a-records
				domains using this as nameserver
					ptrs of ip numbers
						used as nameserver but missing in parent delegation
202.112.0.44	X	X
dtp-lc.com				X		X
gsbyjs.com.cn				X		X
ltagri.net				X		X
ns.edu.cn			X		X
tzxhzx.net				X		X

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r a n d o m
date20091121 rtsakmarka rtsakmark2