hostmaster.linux-firewall.de - dns.ninja
hostmaster.linux-firewall.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 46.4.233.245🇩🇪 Hetzner46.4.0.0/16 HETZNER-RZ-FKS-BLK3 | ||||||
| PTR | kundenwebs.sys2.de | ||||||
| MX | mx.sys2.de ⭐ | ||||||
| A | 2a01:4f8:130:7ffc::240🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | mx.sys2.de | ||||||
| A | 46.4.233.240🇩🇪 Hetzner46.4.0.0/16 HETZNER-RZ-FKS-BLK3 | ||||||
| PTR | mx.sys2.de | ||||||
linux-firewall.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 46.4.233.245🇩🇪 Hetzner46.4.0.0/16 HETZNER-RZ-FKS-BLK3 | ||||||
| NS | ns.sys2.de ⭐ | ||||||
| NS | mrtg.sys2.de | ||||||
| MX | mx.sys2.de ⭐ | ||||||
| TXT | v=spf1 mx a:mx.sys2.de a:mail.sys2.de a:portal.sys2.de a:mrtg.sys2.de -all | ||||||
| SOA | ns.sys2.dehostmaster@linux-firewall.de serial=1782587850 | ||||||
Same first word
Similar names
DNS History
3 records (2 active, 1 former)
●MXmx.sys2.de2026-03-24 → 2026-06-30 · 3 obs
● 2026-03-24 01:58:38
● 2026-06-30 02:09:56
○MXportal.sys2.de2015-05-13 → 2016-09-23 · 4 obs
● 2016-09-23 10:24:36
○ 2026-03-24 01:58:38
○ 2026-06-30 02:09:56
●A46.4.233.2452015-05-13 → 2026-06-30 · 2 obs
● 2026-06-30 02:09:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| linux-firewall.de | ns.sys2.de, mrtg.sys2.de | 2 records |
✅ Authoritative Response
Server:46.4.233.248
NS records: ns.sys2.de, mrtg.sys2.de
🔒 DNSSEC Status
❌ Bogus (DNSSEC validation failed)
Validation error at linux-firewall.de: Error: DNS query timeout: 194.0.0.53 for DS linux-firewall.de
⏱️ Timing
Total: 3646ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 46.4.233.245 |
| MX | 1 | mx.sys2.de (pri: 20) |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (mrtg.sys2.de, ns.sys2.de)
Analysis
IP Addresses
hostmaster.linux-firewall.de directs to one IP number, which is 46.4.233.245.
Among the host names that share IP numbers with hostmaster.linux-firewall.de are linuxsicherheit.de, fstmta.sys2.de, zlnats.sys2.de and two others.
Mail Servers
hostmaster.linux-firewall.de routes its mail through a single mail server, mx.sys2.de.
hostmaster.linux-firewall.de has the same mail server arrangement as a number of other domains, for example hostmaster.sysquadrat.de, venus1.sys2.de, hn3.sys2.de and two more.
mx.sys2.de has two IP addresses: 46.4.233.240 and 2a01:4f8:130:7ffc::240.