linuxnet.cz - dns.ninja

linuxnet.cz

DNSSEC🔒 Signed (DS record present)
A2001:1528:240::1f🇨🇿 CASABLANCA-AS2001:1528::/32 Casablanca INT v6 network
PTRneuron.blueboard.cz
A217.11.249.141🇨🇿 CASABLANCA-AS217.11.248.0/23 Casablanca INT
NSshinzon.blueboard.cz ⭐
A2a00:1ed0:45::b🇨🇿 VSHOSTING2a00:1ed0::/32
PTRshinzon.blueboard.cz
A178.251.187.7🇨🇿 VSHOSTING178.251.184.0/21
PTRshinzon.blueboard.cz
NSjaguar.blueboard.cz ⚠️ Not in zone NS records
A2a00:1ed0:45::c🇨🇿 VSHOSTING2a00:1ed0::/32
PTRjaguar.blueboard.cz
A178.251.187.8🇨🇿 VSHOSTING178.251.184.0/21
PTRjaguar.blueboard.cz
NSns2.blueboard.cz
A2a01:4f8:13b:8d4::2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
A195.201.57.122🇩🇪 Hetzner195.201.0.0/16 HETZNER-DC
PTRns2.blueboard.cz
MXmx.blueboard.cz ⭐
A2001:1528:240::ca🇨🇿 CASABLANCA-AS2001:1528::/32 Casablanca INT v6 network
PTRmx.blueboard.cz
A81.0.209.130🇨🇿 CASABLANCA-AS81.0.208.0/23 Casablanca INT
PTRmx.blueboard.cz
TXTv=spf1 a mx include:spf.blueboard.cz -all
SOAshinzon.blueboard.czhostmaster@blueboard.cz 2023-02-31 #49

cz

DNSSEC🔒 Signed (DS record present)
NSa.ns.nic.cz ⭐
NSb.ns.nic.cz
NSc.ns.nic.cz
NSd.ns.nic.cz
SOAa.ns.nic.czhostmaster@nic.cz serial=1786128443

Same first word

linuxnet.co.nz
linuxnet.cloud
linuxnet.net.br
linuxnet.com.tr
linuxnet.ca
linuxnet.com.br
linuxnet.fr
linuxnet.cz
linuxnet.biz
linuxnet.be
linuxnet.se
linuxnet.dk
linuxnet.com
linuxnet.ch
linuxnet.co.uk
linuxnet.net.nz
linuxnet.gr
linuxnet.ru
linuxnet.no
linuxnet.org
linuxnet.at

Similar names

tunnelix.space
netlinux.it
linuxent.com
luxinten.com
netlinux.co.uk
netlinux.cl
entlinux.com
tunelinx.io
netlinux.net
netlinux.ca
netlinux.com
intunexl.co.uk
tunelinx.com
netlinux.cn
lexunint.com
intunexl.com
tunnelix.com
netlinux.org.uk

DNS History

13 records (6 active, 7 former)

20162017201820192020202120222023202420252026NSjaguar.blueboard.czns2.blueboard.czshinzon.blueboard.czns.wedos.comns.wedos.czns.wedos.euns.wedos.netMXmx.blueboard.czlinuxnet.czA2001:1528:240::1f217.11.249.14137.157.192.15977.93.197.98
●NSjaguar.blueboard.cz2026-08-07 → 2026-08-07 · 3 obs
○ 2017-12-29 02:50:42
● 2026-08-07 19:05:28
● 2026-08-07 19:05:30
○NSns.wedos.com2015-08-17 → 2017-12-29 · 7 obs
● 2015-08-17 02:28:46
● 2015-12-19 18:51:04
○ 2016-03-16 12:26:18
● 2016-05-17 17:38:20
● 2017-12-29 02:50:42
○ 2026-08-07 19:05:28
○ 2026-08-07 19:05:30
○NSns.wedos.cz2015-08-17 → 2017-12-29 · 7 obs
● 2015-08-17 02:28:46
● 2015-12-19 18:51:04
○ 2016-03-16 12:26:18
● 2016-05-17 17:38:20
● 2017-12-29 02:50:42
○ 2026-08-07 19:05:28
○ 2026-08-07 19:05:30
○NSns.wedos.eu2015-08-17 → 2017-12-29 · 7 obs
● 2015-08-17 02:28:46
● 2015-12-19 18:51:04
○ 2016-03-16 12:26:18
● 2016-05-17 17:38:20
● 2017-12-29 02:50:42
○ 2026-08-07 19:05:28
○ 2026-08-07 19:05:30
○NSns.wedos.net2015-08-17 → 2017-12-29 · 7 obs
● 2015-08-17 02:28:46
● 2015-12-19 18:51:04
○ 2016-03-16 12:26:18
● 2016-05-17 17:38:20
● 2017-12-29 02:50:42
○ 2026-08-07 19:05:28
○ 2026-08-07 19:05:30
●NSns2.blueboard.cz2026-08-07 → 2026-08-07 · 3 obs
○ 2017-12-29 02:50:42
● 2026-08-07 19:05:28
● 2026-08-07 19:05:30
●NSshinzon.blueboard.cz2026-08-07 → 2026-08-07 · 3 obs
○ 2017-12-29 02:50:42
● 2026-08-07 19:05:28
● 2026-08-07 19:05:30
○MXlinuxnet.cz2017-12-29 → 2017-12-29 · 3 obs
● 2017-12-29 02:50:42
○ 2026-08-07 19:05:28
○ 2026-08-07 19:05:30
●MXmx.blueboard.cz2026-08-07 → 2026-08-07 · 3 obs
○ 2017-12-29 02:50:42
● 2026-08-07 19:05:28
● 2026-08-07 19:05:30
●A2001:1528:240::1f2026-08-07 → 2026-08-07 · 3 obs
○ 2017-12-29 02:50:42
● 2026-08-07 19:05:28
● 2026-08-07 19:05:30
●A217.11.249.1412026-08-07 → 2026-08-07 · 3 obs
○ 2017-12-29 02:50:42
● 2026-08-07 19:05:28
● 2026-08-07 19:05:30
○A37.157.192.1592015-08-17 → 2016-10-26 · 7 obs
● 2015-08-17 02:28:46
● 2015-12-19 18:51:04
○ 2016-03-16 12:26:18
● 2016-05-17 17:38:20
● 2016-10-26 20:38:16
○ 2017-12-29 02:50:42
○ 2026-08-07 19:05:30
○A77.93.197.982017-12-29 → 2017-12-29 · 4 obs
○ 2016-10-26 20:38:16
● 2017-12-29 02:50:42
○ 2026-08-07 19:05:28
○ 2026-08-07 19:05:30

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cza.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz8 records
linuxnet.czns2.blueboard.cz, jaguar.blueboard.cz, shinzon.blueboard.cz3 records

✅ Authoritative Response

Server:195.201.57.122

NS records: ns2.blueboard.cz, jaguar.blueboard.cz, shinzon.blueboard.cz

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1090ms | Queries: -

📄 Records

TypeCountSample Data
A1217.11.249.141
AAAA12001:1528:240::1f
NS2shinzon.blueboard.cz, ns2.blueboard.cz
MX1mx.blueboard.cz (pri: 10)
TXT1v=spf1 a mx include:spf.blueboard.cz -al
SOA1shinzon.blueboard.cz hostmaster.blueboar

📌 Glue Records Collected

Total: 11

In-bailiwick: 8 (a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz...)

Out-of-bailiwick: 3 (ns2.blueboard.cz, jaguar.blueboard.cz, shinzon.blueboard.cz)

Analysis

IP Addresses

linuxnet.cz has two IP addresses: 217.11.249.141 and 2001:1528:240::1f

www.interierexpress.cz, stoklasa.eu, www.cevela.eu plus two other host names have IP numbers in common with linuxnet.cz.

Name Servers

Three name servers are authoritative for linuxnet.cz: jaguar.blueboard.cz, ns2.blueboard.cz and shinzon.blueboard.cz.

At least some of linuxnet.cz's name servers are shared with other domains, for example moodlik.cz, intersite.info, renovix.sk and two more.

These name servers tend to be used in conjunction with the name servers ns2.miniserver.cz.

jaguar.blueboard.cz resolves to 178.251.187.8 and 2a00:1ed0:45::c. ns2.blueboard.cz resolves to 195.201.57.122 and 2a01:4f8:13b:8d4::2. shinzon.blueboard.cz resolves to 178.251.187.7 and 2a00:1ed0:45::b. All three hostnames point to two IP numbers each.

Mail Servers

linuxnet.cz uses one mail server — mx.blueboard.cz.

The mail server setup of linuxnet.cz matches that of other domains such as farad.cz, toprumy.cz, city-mag.cz and two others.

mx.blueboard.cz directs to two IP numbers, 81.0.209.130 and 2001:1528:240::ca.