linux.edu - robtex.com

linux.edu

DNSSEC⚠️ Not signed
A2001:41d0:a:62c4::1🇫🇷 OVH2001:41d0::/32 IPv6
PTRcrux.linux.edu
A51.75.119.52🇫🇷 OVH51.75.0.0/16
NSmaster.linux.edu ⭐
A2001:41d0:a:62c4::1🇫🇷 OVH2001:41d0::/32 IPv6
PTRcrux.linux.edu
A51.75.119.52🇫🇷 OVH51.75.0.0/16
PTRmaster.linux.edu
NScharybdis.linux.edu
A35.211.12.166🇺🇸 Google35.211.0.0/16
PTR166.12.211.35.bc.googleusercontent.com
NScrux.linux.edu
A172.205.254.133🇳🇱 Microsoft172.200.0.0/13
MXaspmx.l.google.com ⭐
A2607:f8b0:4004:c21::1b🇺🇸 Google2607:f8b0:4004::/48
PTRpe-in-f27.1e100.net
A142.251.179.27🇺🇸 Google142.251.179.0/24
PTRpd-in-f27.1e100.net
MXalt1.aspmx.l.google.com(20)
A2800:3f0:4003:c0f::1a🇨🇱 Google2800:3f0:4003::/48
A108.177.123.27🇺🇸 Google108.177.123.0/24
PTRlcscld-in-f27.1e100.net
MXalt2.aspmx.l.google.com(20)
A2a00:1450:400b:c02::1a🇮🇪 Google2a00:1450:400b::/48
PTRdj-in-f26.1e100.net
A172.253.116.26🇺🇸 Google172.253.116.0/24
PTRdj-in-f26.1e100.net
MXaspmx2.googlemail.com(30)
A2800:3f0:4003:c0f::1b🇨🇱 Google2800:3f0:4003::/48
A108.177.123.26🇺🇸 Google108.177.123.0/24
PTRlcscld-in-f26.1e100.net
MXaspmx3.googlemail.com(30)
A2a00:1450:400b:c02::1b🇮🇪 Google2a00:1450:400b::/48
PTRdj-in-f27.1e100.net
A172.253.116.26🇺🇸 Google172.253.116.0/24
PTRdj-in-f26.1e100.net
MXaspmx4.googlemail.com(30)
A2a00:1450:4009:c0f::1b🇬🇧 Google2a00:1450:4009::/48
PTRyulhrs-in-f27.1e100.net
A192.178.223.27🇺🇸 Google192.178.223.0/24
PTRyulhrs-in-f27.1e100.net
MXaspmx5.googlemail.com(30)
A2a00:1450:400c:c23::1a🇧🇪 Google2a00:1450:400c::/48
PTRyubrupd-in-f26.1e100.net
A172.253.157.26🇺🇸 Google172.253.0.0/16
PTRyubrupd-in-f26.1e100.net
TXTgoogle-site-verification=haFgbqgqnSfKwzJYUaAftVgHtGbrWVrr9wkKdAfygTY
TXTv=spf1 ip4:51.75.119.52 ip6:2001:41d0:a:62c4::1 include:_spf.google.com ~all
SOAmaster.linux.EDUeduard@linux.edu 2026-06-18 #6

edu

DNSSEC🔒 Signed (DS record present)
NSa.edu-servers.net ⭐
NSb.edu-servers.net
NSc.edu-servers.net
NSd.edu-servers.net
NSe.edu-servers.net
NSf.edu-servers.net
NSg.edu-servers.net
NSh.edu-servers.net
NSi.edu-servers.net
NSj.edu-servers.net
NSk.edu-servers.net
NSl.edu-servers.net
NSm.edu-servers.net
SOAa.edu-servers.netnstld@verisign-grs.com serial=1783825802

Subdomains

ns1.linux.edu
web.linux.edu
crux.linux.edu
charybdis.linux.edu
master.linux.edu
www.linux.edu
titan.linux.edu

Same first word

linux.net.pk
linux.do
linux.ne.kr
linux.com.vn
linux.gd
linux.uk.com
linux.bialystok.pl
linux.ninja
linux.cat
linux.ba
linux.hu
linux.net.ar
linux.com.pl
linux.al
linux.wiki
linux.org.ua
linux.szczecin.pl
linux.web.tr
linux.watch
linux.org.ba
linux.or.id
linux.tips
linux.pizza
linux.dev
linux.ie
linux.es
linux.email
linux.co.uk
linux.name.tr
linux.ovh
linux.slupsk.pl
linux.org.mx
linux.college
linux.my
linux.land
linux.krakow.pl
linux.lviv.ua
linux.mx
linux.gda.pl
linux.lublin.pl
linux.edu
linux.boutique
linux.or.jp
linux.ac
linux.lu
linux.nic.in
linux.net.ru
linux.center
linux.solutions
linux.net.cn
linux.co.id
linux.org.hk
linux.im
linux.bielsko.pl
linux.org.ve
linux.bz
linux.net.pl
linux.co.hu
linux.sg
linux.zone
linux.hr
linux.co.ke
linux.com.fr
linux.co.at
linux.rs
linux.net.tr
linux.in
linux.tel
linux.eu
linux.org.tr
linux.fail
linux.am
linux.run
linux.ca
linux.pictures
linux.directory
linux.org.ru
linux.org.py
linux.frl
linux.ch
linux.kg
linux.lat
linux.org.ph
linux.kr
linux.toys
linux.no
linux.org.mt
linux.engineering
linux.aq
linux.com.es
linux.monster
linux.report
linux.ec
linux.systems
linux.events
linux.repair
linux.or.kr
linux.casa
linux.co.kr
linux.careers
linux.biz
linux.ru
linux.cz
linux.kiev.ua
linux.lv
linux.community
linux.org.au
linux.st
linux.pf
linux.at
linux.org.na
linux.academy
linux.or.tz
linux.org.pe
linux.edu.lv
linux.ro
linux.technology
linux.sh.cn
linux.vc
linux.su

Similar names

linux.tc
linux.vn
linux.conf.au
lunix.com.ar
linux.gen.nz
lunix.org
linux.gr
linux.lol
linux.uk
linux.coffee
nuxli.ch
xunli.xyz
ulinx.io
luxin.nl
inlux.eu
luxin.eu
lunix.at
nilux.com.br
luxin.co
luxin.sk
inlux.cn
linxu.de
luxin.it
lunix.info
lixun.com
xunli.cn
lunix.hu
xulin.com
luxin.dnsalias.com
inlux.org
xinul.de
nilux.fr
nulix.ca
unlix.com
xulin.de
xunil.co.nz
inlux.sk
xunil.net
lunix.ch
nilux.net
inlux.ru
nuxli.net
lixun.sg
lunix.dk
xulin.df.gov.br
xunil.com
luxin.me
xinlu.com
nilux.no
luxin.net
xulin.info
nuxli.biz
lixun.tw
nuxli.com
xunil.at
nuxli.be
ulnix.com

DNS History

15 records (12 active, 3 former)

20162017201820192020202120222023202420252026NScharybdis.linux.educrux.linux.edumaster.linux.eduns1.signal1network.comns2.signal1network.comMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx.l.google.comaspmx2.googlemail.comaspmx3.googlemail.comaspmx4.googlemail.comaspmx5.googlemail.comA2001:41d0:a:62c4::151.75.119.5237.187.109.196
●NScharybdis.linux.edu2026-03-03 → 2026-07-12 · 3 obs
○ 2015-07-08 10:38:24
● 2026-03-03 01:13:32
● 2026-07-12 03:32:42
●NScrux.linux.edu2026-03-03 → 2026-07-12 · 3 obs
○ 2015-07-08 10:38:24
● 2026-03-03 01:13:32
● 2026-07-12 03:32:42
●NSmaster.linux.edu2015-07-08 → 2026-07-12 · 2 obs
● 2015-07-08 10:38:24
● 2026-07-12 03:32:42
○NSns1.signal1network.com2015-07-08 → 2026-06-17 · 47 obs
● 2015-07-08 10:38:24
● 2026-03-03 01:13:32
○ 2026-03-04 02:26:02
○ 2026-03-13 05:33:20
● 2026-03-13 19:49:28
● 2026-03-14 06:28:50
○ 2026-03-23 14:49:56
○ 2026-03-26 08:24:36
● 2026-03-27 16:41:54
● 2026-03-29 00:03:44
○ 2026-03-29 00:54:06
○ 2026-03-30 07:54:30
● 2026-03-30 19:03:56
● 2026-04-02 21:16:04
○ 2026-04-02 23:50:04
○ 2026-04-05 11:11:48
● 2026-04-05 22:49:50
○ 2026-04-06 23:25:56
○ 2026-04-07 00:33:04
● 2026-04-08 03:08:56
● 2026-04-11 22:43:46
○ 2026-04-13 14:04:50
○ 2026-04-16 01:23:44
● 2026-04-19 14:19:24
○ 2026-04-19 23:38:28
● 2026-04-22 02:07:02
● 2026-04-22 15:09:12
○ 2026-04-23 01:02:30
○ 2026-04-23 19:33:42
● 2026-04-25 23:35:48
○ 2026-04-26 08:03:54
○ 2026-05-04 22:16:16
● 2026-05-06 06:50:12
● 2026-05-06 15:00:20
○ 2026-05-06 15:39:54
○ 2026-05-19 04:11:44
● 2026-05-19 05:39:58
○ 2026-05-26 11:05:08
● 2026-05-27 08:13:52
○ 2026-05-27 09:10:46
● 2026-05-28 16:04:00
● 2026-05-31 02:51:18
○ 2026-06-09 10:39:24
○ 2026-06-14 13:25:00
● 2026-06-17 00:48:08
○ 2026-06-18 15:59:54
○ 2026-07-12 03:32:42
○NSns2.signal1network.com2015-07-08 → 2026-06-17 · 47 obs
● 2015-07-08 10:38:24
● 2026-03-03 01:13:32
○ 2026-03-04 02:26:02
○ 2026-03-13 05:33:20
● 2026-03-13 19:49:28
● 2026-03-14 06:28:50
○ 2026-03-23 14:49:56
○ 2026-03-26 08:24:36
● 2026-03-27 16:41:54
● 2026-03-29 00:03:44
○ 2026-03-29 00:54:06
○ 2026-03-30 07:54:30
● 2026-03-30 19:03:56
● 2026-04-02 21:16:04
○ 2026-04-02 23:50:04
○ 2026-04-05 11:11:48
● 2026-04-05 22:49:50
○ 2026-04-06 23:25:56
○ 2026-04-07 00:33:04
● 2026-04-08 03:08:56
● 2026-04-11 22:43:46
○ 2026-04-13 14:04:50
○ 2026-04-16 01:23:44
● 2026-04-19 14:19:24
○ 2026-04-19 23:38:28
● 2026-04-22 02:07:02
● 2026-04-22 15:09:12
○ 2026-04-23 01:02:30
○ 2026-04-23 19:33:42
● 2026-04-25 23:35:48
○ 2026-04-26 08:03:54
○ 2026-05-04 22:16:16
● 2026-05-06 06:50:12
● 2026-05-06 15:00:20
○ 2026-05-06 15:39:54
○ 2026-05-19 04:11:44
● 2026-05-19 05:39:58
○ 2026-05-26 11:05:08
● 2026-05-27 08:13:52
○ 2026-05-27 09:10:46
● 2026-05-28 16:04:00
● 2026-05-31 02:51:18
○ 2026-06-09 10:39:24
○ 2026-06-14 13:25:00
● 2026-06-17 00:48:08
○ 2026-06-18 15:59:54
○ 2026-07-12 03:32:42
●MXalt1.aspmx.l.google.com2015-07-08 → 2026-07-12 · 5 obs
● 2015-07-08 10:38:24
● 2017-02-14 01:07:24
○ 2026-06-20 14:25:00
● 2026-06-24 05:10:52
● 2026-07-12 03:32:42
●MXalt2.aspmx.l.google.com2015-07-08 → 2026-07-12 · 5 obs
● 2015-07-08 10:38:24
● 2017-02-14 01:07:24
○ 2026-06-20 14:25:00
● 2026-06-24 05:10:52
● 2026-07-12 03:32:42
●MXaspmx.l.google.com2015-07-08 → 2026-07-12 · 5 obs
● 2015-07-08 10:38:24
● 2017-02-14 01:07:24
○ 2026-06-20 14:25:00
● 2026-06-24 05:10:52
● 2026-07-12 03:32:42
●MXaspmx2.googlemail.com2015-07-08 → 2026-07-12 · 5 obs
● 2015-07-08 10:38:24
● 2017-02-14 01:07:24
○ 2026-06-20 14:25:00
● 2026-06-24 05:10:52
● 2026-07-12 03:32:42
●MXaspmx3.googlemail.com2015-07-08 → 2026-07-12 · 5 obs
● 2015-07-08 10:38:24
● 2017-02-14 01:07:24
○ 2026-06-20 14:25:00
● 2026-06-24 05:10:52
● 2026-07-12 03:32:42
●MXaspmx4.googlemail.com2015-07-08 → 2026-07-12 · 5 obs
● 2015-07-08 10:38:24
● 2017-02-14 01:07:24
○ 2026-06-20 14:25:00
● 2026-06-24 05:10:52
● 2026-07-12 03:32:42
●MXaspmx5.googlemail.com2015-07-08 → 2026-07-12 · 5 obs
● 2015-07-08 10:38:24
● 2017-02-14 01:07:24
○ 2026-06-20 14:25:00
● 2026-06-24 05:10:52
● 2026-07-12 03:32:42
●A2001:41d0:a:62c4::12015-07-08 → 2026-07-12 · 5 obs
● 2015-07-08 10:38:24
● 2017-02-14 01:07:24
○ 2026-06-20 14:25:00
● 2026-06-24 05:10:52
● 2026-07-12 03:32:42
○A37.187.109.1962015-07-08 → 2026-06-17 · 4 obs
● 2015-07-08 10:38:24
● 2026-06-17 00:48:08
○ 2026-06-18 15:59:54
○ 2026-07-12 03:32:42
●A51.75.119.522026-06-18 → 2026-07-12 · 5 obs
○ 2026-06-17 00:48:08
● 2026-06-18 15:59:54
○ 2026-06-20 14:25:00
● 2026-06-24 05:10:52
● 2026-07-12 03:32:42

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
edud.edu-servers.net, i.edu-servers.net, l.edu-servers.net, k.edu-servers.net...-
linux.edumaster.linux.edu, charybdis.linux.edu, crux.linux.edu4 records

✅ Authoritative Response

Server:51.75.119.52

NS records: master.linux.edu, charybdis.linux.edu, crux.linux.edu

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for linux.edu (unsigned zone)

⏱️ Timing

Total: 499ms | Queries: -

📄 Records

TypeCountSample Data
A151.75.119.52
AAAA12001:41d0:a:62c4::1
NS3crux.linux.edu, master.linux.EDU...
MX7ASPMX5.GOOGLEMAIL.COM (pri: 30), ALT2.ASPMX.L.GOOGLE.COM (pri: 20)...
TXT2google-site-verification=haFgbqgqnSfKwzJ, v=spf1 ip4:51.75.119.52 ip6:2001:41d0:a:
SOA1master.linux.EDU eduard.linux.edu

📌 Glue Records Collected

Total: 4

In-bailiwick: 4 (master.linux.edu, master.linux.edu, charybdis.linux.edu...)

Analysis

Hierarchy

linux.edu is a parent domain; its children include ns1.linux.edu, web.linux.edu, crux.linux.edu, charybdis.linux.edu, master.linux.edu and a few other host names.

IP Addresses

linux.edu directs to two IP numbers, 51.75.119.52 and 2001:41d0:a:62c4::1

Additional host names — edzoe.net, ns.ownme.org, master.linux.edu and two others — share IP numbers with linux.edu.

Name Servers

The authoritative name servers for linux.edu are charybdis.linux.edu, crux.linux.edu and master.linux.edu — three in total.

Host names with two IP numbers:

master.linux.edu directs traffic to 51.75.119.52 and 2001:41d0:a:62c4::1.

Host names pointing to a single IP address:

charybdis.linux.edu has the IP address 35.211.12.166.

crux.linux.edu has the IP address 172.205.254.133.

Mail Servers

The MX records for linux.edu point to 7 mail servers — aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and 4 other.

linux.edu shares mail servers — at least in part — with other domains, including ns500693.ns500693.ns500699.ns500699.ns500693.ns500734.ns500693.ns500693.ns500693.ns500693.ns500699.ns500693.ns500588.ns500632.ns500612.ns500612.ns500110.dtrkdll.com, ns500742.ns500754.ns500742.ns500754.ns500754.ns500731.ns500704.ns500131.lustychickser.com, ns500754.ns500671.ns500742.ns500731.ns500671.ns500704.ns500688.ns500705.ns500688.ns500649.ns500291.ns500131.lustychickser.com and two others.

These mail servers are frequently used alongside mail servers aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and 3 other.

Host names with two IP numbers:

aspmx2.googlemail.com directs traffic to 108.177.123.26 and 2800:3f0:4003:c0f::1b.

aspmx3.googlemail.com directs traffic to 172.253.116.26 and 2a00:1450:400b:c02::1b.

aspmx4.googlemail.com directs traffic to 192.178.223.27 and 2a00:1450:4009:c0f::1b.

aspmx5.googlemail.com directs traffic to 172.253.157.26 and 2a00:1450:400c:c23::1a.

aspmx.l.google.com directs traffic to 142.251.179.27 and 2607:f8b0:4004:c21::1b.

alt1.aspmx.l.google.com directs traffic to 108.177.123.27 and 2800:3f0:4003:c0f::1a.

alt2.aspmx.l.google.com directs traffic to 172.253.116.26 and 2a00:1450:400b:c02::1a.

Both aspmx3.googlemail.com and alt2.aspmx.l.google.com resolve to 172.253.116.26 IP addresses each.