linux-firewall.de - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

linux-firewall.de

DNSSEC⚠️ Not signed
A46.4.233.245🇩🇪 Hetzner46.4.0.0/16 HETZNER-RZ-FKS-BLK3
PTRkundenwebs.sys2.de
NSns.sys2.de ⭐
A2a01:4f8:130:7ffc::248🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
A46.4.233.248🇩🇪 Hetzner46.4.0.0/16 HETZNER-RZ-FKS-BLK3
PTRns.sys2.de
NSmrtg.sys2.de
A2001:41d0:701:1100::14b1🇩🇪 OVH2001:41d0::/32 IPv6
PTRmrtg.sys2.de
A51.68.191.157🇫🇷 OVH51.68.0.0/16
PTRmrtg.sys2.de
MXmx.sys2.de ⭐
A2a01:4f8:130:7ffc::240🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRmx.sys2.de
A46.4.233.240🇩🇪 Hetzner46.4.0.0/16 HETZNER-RZ-FKS-BLK3
PTRmx.sys2.de
TXTv=spf1 mx a:mx.sys2.de a:mail.sys2.de a:portal.sys2.de a:mrtg.sys2.de -all
SOAns.sys2.dehostmaster@linux-firewall.de serial=1786453174

de

DNSSEC🔒 Signed (DS record present)
NSf.nic.de ⭐
NSa.nic.de
NSl.de.net ⚠️ Not in parent delegation
NSn.de.net ⚠️ Not in parent delegation
NSs.de.net ⚠️ Not in parent delegation
NSz.nic.de
SOAf.nic.dedns-operations@denic.de serial=1786854473

Subdomains

hostmaster.linux-firewall.de

Same first word

linux-firewall.biz
linux-firewall.eu
linux-firewall.com
linux-firewall.org
linux-firewall.de
linux-firewall.info

Similar names

firewall-linux.de

DNS History

6 records (4 active, 2 former)

20162017201820192020202120222023202420252026NSmrtg.sys2.dens.sys2.devs2.sys2.deMXmx.sys2.deportal.sys2.deA46.4.233.245
●NSmrtg.sys2.de2026-02-20 → 2026-08-16 · 3 obs
○ 2019-04-08 17:32:40
● 2026-02-20 13:15:40
● 2026-08-16 04:33:54
●NSns.sys2.de2015-07-01 → 2026-08-16 · 2 obs
● 2015-07-01 13:25:52
● 2026-08-16 04:33:54
○NSvs2.sys2.de2015-07-01 → 2019-04-08 · 4 obs
● 2015-07-01 13:25:52
● 2019-04-08 17:32:40
○ 2026-02-20 13:15:40
○ 2026-08-16 04:33:54
●MXmx.sys2.de2026-02-20 → 2026-08-16 · 3 obs
○ 2019-04-08 17:32:40
● 2026-02-20 13:15:40
● 2026-08-16 04:33:54
○MXportal.sys2.de2015-07-01 → 2019-04-08 · 4 obs
● 2015-07-01 13:25:52
● 2019-04-08 17:32:40
○ 2026-02-20 13:15:40
○ 2026-08-16 04:33:54
●A46.4.233.2452015-07-01 → 2026-08-16 · 2 obs
● 2015-07-01 13:25:52
● 2026-08-16 04:33:54

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
def.nic.de, a.nic.de, z.nic.de-
linux-firewall.dens.sys2.de, mrtg.sys2.de2 records

✅ Authoritative Response

Server:46.4.233.248

NS records: ns.sys2.de, mrtg.sys2.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for linux-firewall.de (unsigned zone)

⏱️ Timing

Total: 505ms | Queries: -

📄 Records

TypeCountSample Data
A146.4.233.245
NS2ns.sys2.de, mrtg.sys2.de
MX1mx.sys2.de (pri: 20)
TXT1v=spf1 mx a:mx.sys2.de a:mail.sys2.de a:
SOA1ns.sys2.de hostmaster.linux-firewall.de

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns.sys2.de, mrtg.sys2.de)

Analysis

Hierarchy

The domain hostmaster.linux-firewall.de falls under the parent linux-firewall.de.

IP Addresses

linux-firewall.de resolves to just one IP address, 46.4.233.245.

Two other host names, along with hostmaster.linux-firewall.de, linux-firewall.info and admin.sys2.de, also share IP numbers with linux-firewall.de.

Name Servers

linux-firewall.de uses two name servers for its delegation: mrtg.sys2.de and ns.sys2.de.

linux-firewall.de shares its NS records with other domains, for example bildreihe.de, agnes-esser.de, rosenkreuzer.net and two others.

At least some of linux-firewall.de's name servers are shared with other domains, for example langzeiterfahrung.de, hoermann-enterprises.com, linux-firewall.biz and two more.

These name servers tend to be used in conjunction with the name servers vs2.sys2.de.

The two host names mrtg.sys2.de and ns.sys2.de each have a pair of IP addresses: mrtg.sys2.de has 51.68.191.157 and 2001:41d0:701:1100::14b1, and ns.sys2.de has 46.4.233.248 and 2a01:4f8:130:7ffc::248.

Mail Servers

The sole mail server for linux-firewall.de is mx.sys2.de.

Among the domains sharing a mail server setup with linux-firewall.de are cx1.sys2.de, vf10.sys2.de, problemlos.net and two others.

mx.sys2.de directs to two IP numbers, 46.4.233.240 and 2a01:4f8:130:7ffc::240.