master.linux.edu - dns.ninja

master.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

linux.edu

DNSSEC⚠️ Not signed
A2001:41d0:a:62c4::1🇫🇷 OVH2001:41d0::/32 IPv6
A51.75.119.52🇫🇷 OVH51.75.0.0/16
NSmaster.linux.edu ⭐
NScharybdis.linux.edu
NScrux.linux.edu
MXaspmx.l.google.com ⭐
MXalt1.aspmx.l.google.com(20)
MXalt2.aspmx.l.google.com(20)
MXaspmx2.googlemail.com(30)
MXaspmx3.googlemail.com(30)
MXaspmx4.googlemail.com(30)
MXaspmx5.googlemail.com(30)
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

PTR for

52.119.75.51.in-addr.arpa

NS for

linux.edu

Same first word

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DNS History

3 records (2 active, 1 former)

20162017201820192020202120222023202420252026A2001:41d0:a:62c4::151.75.119.5237.187.109.196
●A2001:41d0:a:62c4::12015-07-19 → 2026-07-20 · 2 obs
● 2015-07-19 07:40:40
● 2026-07-20 08:14:40
○A37.187.109.1962015-07-19 → 2026-06-17 · 4 obs
● 2015-07-19 07:40:40
● 2026-06-17 00:48:08
○ 2026-06-18 15:59:54
○ 2026-07-20 08:14:40
●A51.75.119.522026-06-18 → 2026-07-20 · 3 obs
○ 2026-06-17 00:48:08
● 2026-06-18 15:59:54
● 2026-07-20 08:14:40

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
edud.edu-servers.net, b.edu-servers.net, f.edu-servers.net, h.edu-servers.net...-
linux.edumaster.linux.edu, charybdis.linux.edu, crux.linux.edu4 records

✅ Authoritative Response

Server:172.205.254.133

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: 258ms | Queries: -

📄 Records

TypeCountSample Data
A151.75.119.52
AAAA12001:41d0:a:62c4::1

📌 Glue Records Collected

Total: 4

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

Analysis

Name Server Role

linux.edu has master.linux.edu listed as one of its name servers.

charybdis.linux.edu, crux.linux.edu and master.linux.edu regularly act as name servers together.

IP Addresses

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

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