linuxguru.pl - dns.ninja
linuxguru.pl
| DNSSEC | ⚠️ Not signed | ||||||
| A | 51.75.52.115🇫🇷 OVH51.75.0.0/16 | ||||||
| PTR | archeo.unixguru.pl | ||||||
| NS | ns1.unixguru.pl ⭐ | ||||||
| A | 2001:41d0:602:2273::1🇫🇷 OVH2001:41d0::/32 IPv6 | ||||||
| PTR | archeo.unixguru.pl | ||||||
| A | 51.75.52.115🇫🇷 OVH51.75.0.0/16 | ||||||
| PTR | archeo.unixguru.pl | ||||||
| NS | ns2.unixguru.pl | ||||||
| A | 79.98.145.34🇵🇱 NitroNet79.98.144.0/21 Nitronet Sp. z o.o. | ||||||
| NS | ns3.unixguru.pl | ||||||
| A | 2001:41d0:701:1100::66c🇩🇪 OVH2001:41d0::/32 IPv6 | ||||||
| PTR | fns2.42.pl | ||||||
| A | 51.38.99.90🇫🇷 OVH51.38.0.0/16 | ||||||
| PTR | fns2.42.pl | ||||||
| MX | archeo.unixguru.pl ⭐ | ||||||
| A | 2001:41d0:602:2273::1🇫🇷 OVH2001:41d0::/32 IPv6 | ||||||
| PTR | archeo.unixguru.pl | ||||||
| A | 51.75.52.115🇫🇷 OVH51.75.0.0/16 | ||||||
| PTR | archeo.unixguru.pl | ||||||
| TXT | v=spf1 include:_spf.unixguru.pl a mx -all | ||||||
| SOA | ns1.unixguru.plhostmaster@linuxguru.pl 2025-06-04 #2 | ||||||
pl
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a-dns.pl ⭐ | ||||||
| NS | b-dns.pl | ||||||
| NS | d-dns.pl | ||||||
| NS | f-dns.pl | ||||||
| NS | h-dns.pl | ||||||
| NS | j-dns.pl | ||||||
| TXT | ccTLD of Poland | ||||||
| SOA | a-dns.pldnsmaster@nask.pl serial=1783751571 | ||||||
Same first word
Similar names
DNS History
9 records (5 active, 4 former)
●NSns1.unixguru.pl2015-12-27 → 2026-07-11 · 3 obs
● 2015-12-27 02:29:20
● 2026-07-11 18:59:28
●NSns2.unixguru.pl2015-08-15 → 2026-07-11 · 2 obs
● 2026-07-11 18:59:28
●NSns3.unixguru.pl2015-08-15 → 2026-07-11 · 2 obs
● 2026-07-11 18:59:28
○NSns4.unixguru.pl2015-08-15 → 2015-08-15 · 3 obs
○ 2015-12-27 02:29:20
○ 2026-07-11 18:59:28
●MXarcheo.unixguru.pl2026-02-20 → 2026-07-11 · 3 obs
● 2026-02-20 15:11:22
● 2026-07-11 18:59:28
○MXsmtp.linuxguru.pl2015-08-15 → 2017-08-22 · 4 obs
● 2017-08-22 05:15:32
○ 2026-02-20 15:11:22
○ 2026-07-11 18:59:28
○A37.187.116.1392015-08-15 → 2015-08-15 · 3 obs
○ 2015-12-27 02:29:20
○ 2026-07-11 18:59:28
●A51.75.52.1152026-02-20 → 2026-07-11 · 3 obs
● 2026-02-20 15:11:22
● 2026-07-11 18:59:28
○A91.121.220.222015-12-27 → 2017-08-22 · 5 obs
● 2015-12-27 02:29:20
● 2017-08-22 05:15:32
○ 2026-02-20 15:11:22
○ 2026-07-11 18:59:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| pl | b-dns.pl, d-dns.pl, f-dns.pl, h-dns.pl... | - |
| linuxguru.pl | ns3.unixguru.pl, ns1.unixguru.pl, ns2.unixguru.pl | 5 records |
✅ Authoritative Response
Server:79.98.145.34
NS records: ns3.unixguru.pl, ns1.unixguru.pl, ns2.unixguru.pl
🔒 DNSSEC Status
❌ Bogus (DNSSEC validation failed)
Validation error at pl: Error: DNS query timeout: 192.195.72.53 for DNSKEY pl
⏱️ Timing
Total: 3703ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 51.75.52.115 |
| NS | 3 | ns3.unixguru.pl, ns2.unixguru.pl... |
| MX | 1 | archeo.unixguru.pl (pri: 10) |
| TXT | 1 | v=spf1 include:_spf.unixguru.pl a mx -al |
| SOA | 1 | ns1.unixguru.pl hostmaster.linuxguru.pl |
📌 Glue Records Collected
Total: 5
Out-of-bailiwick: 5 (ns3.unixguru.pl, ns2.unixguru.pl, ns1.unixguru.pl...)
Analysis
IP Addresses
linuxguru.pl has exactly one IP address — 51.75.52.115.
ns1.unixguru.pl, suszko.eu, unixguru.pl plus two other host names have IP numbers in common with linuxguru.pl.
Name Servers
linuxguru.pl is delegated to three name servers: ns1.unixguru.pl, ns2.unixguru.pl and ns3.unixguru.pl.
linuxguru.pl shares at least some of its name servers with domains including suszko.eu, unixguru.pl and 5.1.0.0.1.7.0.0.0.7.4.0.1.0.0.2.ip6.arpa
Host names pointing to two IP addresses:
ns1.unixguru.pl points to 51.75.52.115 and 2001:41d0:602:2273::1.
ns3.unixguru.pl points to 51.38.99.90 and 2001:41d0:701:1100::66c.
Host names resolving to a single IP address:
ns2.unixguru.pl points to 79.98.145.34.
Mail Servers
linuxguru.pl uses one mail server — archeo.unixguru.pl.
linuxguru.pl shares the same mail server configuration as other domains, including unixguru.pl, archeo.unixguru.pl, ibox.suszko.eu and suszko.eu.
The host archeo.unixguru.pl resolves to 51.75.52.115 and 2001:41d0:602:2273::1 — two IP addresses.