gnu.kr - dns.ninja

`gnu.kr`

DNSSEC	⚠️ Not signed
A	103.55.189.199^{🇰🇷 DACOM-NET103.55.189.0/24}
NS	`ns.gnu.ac.kr` ⭐ ⚠️ Not in zone NS records
		A	203.255.1.26^{🇰🇷 GSNU-AS-KR203.255.0.0/18 Proxy-Registered Route Object by LG Dacom(AS3786)}
NS	`ns2.kornet.net` ⚠️ Not in zone NS records
		A	211.216.50.160^{🇰🇷 KT-NET211.216.0.0/13 KORnet Powered BY Korea Telecom}
MX	`gmx51.mailplug.com` ⭐
MX	`zmx908.mailplug.com` ⭐
		A	175.45.214.223^{🇰🇷 NBPAP-AS-AP175.45.208.0/21 customer route}
			PTR	`zmx903.mailplug.com`
		A	175.45.214.224^{🇰🇷 NBPAP-AS-AP175.45.208.0/21 customer route}
			PTR	`zmx904.mailplug.com`
		A	175.45.220.31^{🇰🇷 NBPAP-AS-AP175.45.216.0/21 customer route}
			PTR	`zmx907.mailplug.com`
		A	175.45.220.53^{🇰🇷 NBPAP-AS-AP175.45.216.0/21 customer route}
			PTR	`zmx908.mailplug.com`
		A	175.45.221.5^{🇰🇷 NBPAP-AS-AP175.45.216.0/21 customer route}
			PTR	`zmx905.mailplug.com`
		A	175.45.221.162^{🇰🇷 NBPAP-AS-AP175.45.216.0/21 customer route}
			PTR	`zmx906.mailplug.com`
SOA	`ns.gnu.ac.kr`root@ns.gnu.ac.kr 2023-08-09 #20

`kr`

	DNSSEC	🔒 Signed (DS record present)
	NS	`g.dns.kr` ⭐
	NS	`b.dns.kr`
	NS	`c.dns.kr`
	NS	`d.dns.kr`
	NS	`e.dns.kr`
	NS	`f.dns.kr`
	SOA	`g.dns.kr`domain-manager@nic.or.kr serial=2606150504

Subdomains

nongae.gnu.kr

mail.gnu.kr

Same first word

gnu.io

gnu.kim

gnu.si

gnu.ca

gnu.xyz

gnu.info

gnu.net

gnu.org.il

gnu.org.pe

gnu.ae

gnu.rep.kp

gnu.pt

gnu.cz

gnu.be

gnu.org.ve

gnu.es

gnu.ac.kr

gnu.me

gnu.org.ua

gnu.lt

gnu.se

gnu.kr

gnu.works

gnu.dk

gnu.org

gnu.fr

gnu.life

gnu.co.kr

gnu.org.uk

gnu.style

gnu.de

gnu.moe

gnu.cn

gnu.team

gnu.in

gnu.systems

gnu.so

gnu.org.ru

gnu.mx

gnu.com

gnu.li

gnu.idv.tw

gnu.gov.ly

gnu.nl

gnu.in-berlin.de

gnu.asia

gnu.cat

gnu.fun

gnu.nu

gnu.la

gnu.ro

gnu.email

gnu.su

gnu.party

gnu.org.pl

gnu.sk

gnu.com.br

gnu.gl

gnu.fi

gnu.hu

gnu.us

gnu.org.in

gnu.gr

gnu.kz

gnu.at

gnu.im

gnu.ch

gnu.support

gnu.cc

gnu.ac.in

gnu.pl

gnu.cl

gnu.co

Similar names

nug.cafe

gun.io

ung.com.ua

ung.info

ngu.ru

nug.university

ugn.at

nug.training

ngu.idv.tw

ngu.it

nug.business

gun.gallery

ngu.jp

ngu.io

gun.net

ugn.de

nug.gold

gun.la

gun.deals

ngu.me

gun.life

ung.de

gun.co.uk

gun.de

ngu.co.jp

gun.az

ngu.edu.so

nug.holdings

nug.com

ngu.fr

gun.exchange

ung.in.ua

nug.technology

ugn.info

nug.school

gun.fun

ung.fr

ung.br

nug.eu

gun.pl

gun.broker

gun.toys

nug.financial

ung.tv

gun.web.id

nug.(0x787878)

nug.web.id

ngu.finance

gun.lviv.ua

ung.si

ugn.cc

ngu.co.za

gun.jp

ugn.ca

ung.co.za

gun.eco

ugn.es

nug.com.au

gun.ru

nug.email

ung.am

ugn.be

gun.dog

ung.io

nug.co.kr

ung.ru

nug.express

ngu.cz

nug.tv

ngu.eu

nug.company

nug.lv

ngu.com

ngu.ca

gun.training

nug.productions

gun.company

ugn.co

nug.tips

ung.me

gun.ai

gun.club

nug.media

gun.lu

nug.ch

ngu.gov.ua

gun.ca

gun.at

nug.ir

nug.enterprises

ngu.su

gun.cash

gun.ro

ung.ch

ung.fm

gun.zone

ugn.eu

gun.wtf

gun.run

gun.tv

gun.center

ngu.edu.ge

ung.nl

ugn.com.mx

nug.guru

ung.kz

ung.stockholm

ugn.me

nug.house

ngu.edu.eg

nug.world

nug.net

ngu.de

gun.care

gun.av.tr

ngu.my

nug.bg

ugn.it

ngu.si

gun.cz

ngu.in

gun.eu.com

nug.town

ngu.dk

ung.com.au

nug.guide

gun.fm

nug.education

ugn.ac.id

gun.si

nug.org

gun.technology

ung.biz

nug.support

ngu.no

nug.finance

gun.info

ngu.nl

ung.ag

nug.tax

gun.ie

ugn.kr

gun.vn

DNS History

8 records (5 active, 3 former)

●NSns.gnu.ac.kr2018-09-21 → 2026-06-14 · 3 obs

○ 2017-01-23 05:57:54
● 2018-09-21 21:38:54
● 2026-06-14 22:07:54

○NSns.gsnu.ac.kr2015-07-15 → 2017-01-23 · 4 obs

● 2015-07-15 01:35:18
● 2017-01-23 05:57:54
○ 2018-09-21 21:38:54
○ 2026-06-14 22:07:54

●NSns2.kornet.net2026-02-28 → 2026-06-14 · 3 obs

○ 2018-09-21 21:38:54
● 2026-02-28 11:17:50
● 2026-06-14 22:07:54

●MXgmx51.mailplug.com2026-02-28 → 2026-06-14 · 20 obs

○ 2018-09-21 21:38:54
● 2026-02-28 11:17:50
○ 2026-03-10 03:06:44
○ 2026-03-17 04:44:32
● 2026-03-17 21:54:20
○ 2026-03-25 02:40:04
○ 2026-03-31 11:52:48
● 2026-04-15 18:29:08
○ 2026-04-25 21:42:32
● 2026-04-30 01:00:16
○ 2026-05-06 10:48:16
○ 2026-05-10 15:09:00
● 2026-05-15 03:22:14
● 2026-05-21 02:16:58
○ 2026-05-31 01:40:30
○ 2026-06-10 02:08:14
● 2026-06-11 04:16:56
○ 2026-06-11 11:06:02
● 2026-06-14 21:16:38
● 2026-06-14 22:07:54

○MXspam.gnu.kr2015-07-15 → 2018-09-21 · 4 obs

● 2015-07-15 01:35:18
● 2018-09-21 21:38:54
○ 2026-02-28 11:17:50
○ 2026-06-14 22:07:54

●MXzmx908.mailplug.com2026-02-28 → 2026-06-14 · 20 obs

●A103.55.189.1992026-03-10 → 2026-06-14 · 22 obs

○ 2026-02-28 11:17:50
● 2026-03-10 03:06:44
● 2026-03-17 04:44:32
○ 2026-03-17 21:54:20
○ 2026-03-27 00:47:30
● 2026-03-31 11:52:48
● 2026-04-15 18:29:08
○ 2026-04-25 21:42:32
○ 2026-04-30 01:00:16
● 2026-05-06 10:48:16
● 2026-05-09 18:46:38
○ 2026-05-09 19:52:22
○ 2026-05-10 07:04:32
● 2026-05-10 15:09:00
○ 2026-05-15 03:22:14
● 2026-05-21 02:16:58
● 2026-05-31 01:40:30
○ 2026-06-10 02:08:14
● 2026-06-11 04:16:56
○ 2026-06-11 11:06:02
● 2026-06-14 21:16:38
● 2026-06-14 22:07:54

○A203.255.1.252015-07-15 → 2018-09-21 · 4 obs

● 2015-07-15 01:35:18
● 2018-09-21 21:38:54
○ 2026-02-28 11:17:50
○ 2026-06-14 22:07:54

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
kr	c.dns.kr, e.dns.kr, d.dns.kr, g.dns.kr...	-
gnu.kr	ns.gnu.ac.kr, ns2.kornet.net	-

✅ Authoritative Response

Server:203.255.1.26

NS records: ns.gnu.ac.kr, ns2.kornet.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for gnu.kr (unsigned zone)

⏱️ Timing

Total: 1659ms | Queries: -

📄 Records

Type	Count	Sample Data
SOA	1	`ns.gnu.ac.kr root.ns.gnu.ac.kr`

Analysis

Hierarchy

gnu.kr serves as the parent of nongae.gnu.kr and mail.gnu.kr.

IP Addresses

gnu.kr has exactly one IP address — 103.55.189.199.

gnu.ac.kr, abeek.gnu.ac.kr and www.gnu.ac.kr are examples of other host names that share IP numbers with gnu.kr.

Name Servers

DNS delegation for gnu.kr points to two name servers: ns2.kornet.net and ns.gnu.ac.kr.

gnu.kr shares its name server setup with other domains, such as gsnu.ac.kr and gnu.ac.kr.

gnu.kr shares at least some of its name servers with other domains, including humaxdigital.com, funshinhan.net, kfisac.org and two others.

These name servers are frequently seen alongside ns.kornet.net, ns.shinhan.com, sndxpa1p.shinhan.com and 6 other name servers.

ns2.kornet.net and ns.gnu.ac.kr each resolve to one IP number: ns2.kornet.net points to 211.216.50.160 and ns.gnu.ac.kr points to 203.255.1.26.

Mail Servers

gnu.kr uses two mail servers, gmx51.mailplug.com and zmx908.mailplug.com.

gnu.kr uses the same mail servers as other domains, including gsnu.ac.kr.

gnu.kr has at least some mail servers in common with other domains, such as zm908.mailplug.com, gnu.ac.kr, mail.gnu.ac.kr and mail.gsnu.ac.kr.

Hosts with 6 IP addresses each:

zmx908.mailplug.com has IP addresses 175.45.214.223, 175.45.214.224 and 175.45.220.31, plus 3 other.