linux.koeln - robtex.com
linux.koeln
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a01:239:314:9400::35🇩🇪 IONOS-AS2a01:239::/32 IONOS SE ber.de | ||||||
| A | 212.132.101.35🇬🇧 IONOS-AS212.132.96.0/19 IONOS SE ber.de | ||||||
| NS | ns1.rieker.cloud ⭐ | ||||||
| A | 2a01:239:314:9400::35🇩🇪 IONOS-AS2a01:239::/32 IONOS SE ber.de | ||||||
| A | 212.132.101.35🇬🇧 IONOS-AS212.132.96.0/19 IONOS SE ber.de | ||||||
| PTR | srv01.rieker.cloud | ||||||
| NS | ns2.rieker.cloud | ||||||
| A | 2a01:239:314:9400::36🇩🇪 IONOS-AS2a01:239::/32 IONOS SE ber.de | ||||||
| A | 212.132.101.36🇬🇧 IONOS-AS212.132.96.0/19 IONOS SE ber.de | ||||||
| PTR | srv01.rieker.cloud | ||||||
| MX | mail.linux.koeln ⭐ | ||||||
| A | 2a01:239:314:9400::35🇩🇪 IONOS-AS2a01:239::/32 IONOS SE ber.de | ||||||
| A | 212.132.101.35🇬🇧 IONOS-AS212.132.96.0/19 IONOS SE ber.de | ||||||
| PTR | srv01.rieker.cloud | ||||||
| TXT | v=spf1 +a +mx +a:srv01.rieker.cloud -all | ||||||
| SOA | ns1.rieker.cloudeugen@rieker.cloud 2026-03-25 #2 | ||||||
koeln
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns1.ryce-rsp.com ⭐ | ||||||
| NS | dns.ryce-rsp.com | ||||||
| NS | ns1.dns.business | ||||||
| SOA | ns1.ryce-rsp.comsupport@ryce-rsp.com 2025-07-18 #46 | ||||||
Subdomains
mail.linux.koeln |
Same first word
Similar names
DNS History
13 records (5 active, 8 former)
○NSns1.netzpanik.de2017-01-07 → 2017-01-07 · 3 obs
○ 2018-01-16 11:31:28
○ 2026-05-09 19:28:00
●NSns1.rieker.cloud2026-02-18 → 2026-05-09 · 3 obs
● 2026-02-18 18:13:30
● 2026-05-09 19:28:00
○NSns1.rieker.engineering2018-01-16 → 2018-01-16 · 4 obs
● 2018-01-16 11:31:28
○ 2026-02-18 18:13:30
○ 2026-05-09 19:28:00
○NSns2.netzpanik.de2017-01-07 → 2017-01-07 · 3 obs
○ 2018-01-16 11:31:28
○ 2026-05-09 19:28:00
●NSns2.rieker.cloud2026-02-18 → 2026-05-09 · 3 obs
● 2026-02-18 18:13:30
● 2026-05-09 19:28:00
○NSns2.rieker.engineering2018-01-16 → 2018-01-16 · 4 obs
● 2018-01-16 11:31:28
○ 2026-02-18 18:13:30
○ 2026-05-09 19:28:00
●MXmail.linux.koeln2017-01-07 → 2026-05-09 · 4 obs
○ 2018-01-16 11:31:28
● 2026-02-18 18:13:30
● 2026-05-09 19:28:00
○MXsrv.rieker.engineering2018-01-16 → 2018-01-16 · 4 obs
● 2018-01-16 11:31:28
○ 2026-02-18 18:13:30
○ 2026-05-09 19:28:00
○A176.9.108.1802018-01-16 → 2018-01-16 · 4 obs
● 2018-01-16 11:31:28
○ 2026-02-18 18:13:30
○ 2026-05-09 19:28:00
●A212.132.101.352026-02-18 → 2026-05-09 · 3 obs
● 2026-02-18 18:13:30
● 2026-05-09 19:28:00
○A2a01:238:43a9:5200:52ea:c9e4:9923:f6aa2017-01-07 → 2017-01-07 · 3 obs
○ 2018-01-16 11:31:28
○ 2026-05-09 19:28:00
●A2a01:239:314:9400::352026-02-18 → 2026-05-09 · 3 obs
● 2026-02-18 18:13:30
● 2026-05-09 19:28:00
○A85.214.86.1722017-01-07 → 2017-01-07 · 3 obs
○ 2018-01-16 11:31:28
○ 2026-05-09 19:28:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| koeln | dns.ryce-rsp.com, ns1.dns.business, ns1.ryce-rsp.com | 6 records |
| linux.koeln | ns1.rieker.cloud, ns2.rieker.cloud | - |
✅ Authoritative Response
Server:212.132.101.35
NS records: ns1.rieker.cloud, ns2.rieker.cloud
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for linux.koeln (unsigned zone)
⏱️ Timing
Total: 1427ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 212.132.101.35 |
| AAAA | 1 | 2a01:239:314:9400::35 |
| NS | 2 | ns2.rieker.cloud, ns1.rieker.cloud |
| MX | 1 | mail.linux.koeln (pri: 10) |
| TXT | 1 | v=spf1 +a +mx +a:srv01.rieker.cloud -all |
| SOA | 1 | ns1.rieker.cloud eugen.rieker.cloud |
📌 Glue Records Collected
Total: 6
Out-of-bailiwick: 6 (dns.ryce-rsp.com, dns.ryce-rsp.com, ns1.dns.business...)
Analysis
Hierarchy
linux.koeln is parent of mail.linux.koeln.
IP Addresses
linux.koeln points to two IP numbers: 2a01:239:314:9400::35 and 212.132.101.35.
Other host names, for instance netzpanik.de, srv01.rieker.cloud, isp-plus.de, mail.netzpanik.com and netzpanik.com share IP numbers with linux.koeln.
Name Servers
linux.koeln's delegation is to two name servers ns1.rieker.cloud and ns2.rieker.cloud.
linux.koeln shares the same name server configuration as other domains, such as ispplus.de, service-server.net, germanbyte.com, rieker.engineering and creaus.com.
Host names with two IP numbers: ns1.rieker.cloud points to 2a01:239:314:9400::35 and 212.132.101.35; ns2.rieker.cloud points to 2a01:239:314:9400::36 and 212.132.101.36
Mail Servers
linux.koeln is served by a single mail server, mail.linux.koeln.
Hostname mail.linux.koeln resolves to two IPs: 2a01:239:314:9400::35 and 212.132.101.35.