linuxguru.eu - dns.ninja
linuxguru.eu
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 77.48.10.152🇨🇿 VODAFONE-CZ-AS77.48.0.0/17 Vodafone Czech Republic a.s. | ||||||
| PTR | ispconfig.chalupsky.org | ||||||
| NS | ns1.ignum.com ⭐ | ||||||
| A | 2a00:1e40:a:53::5🇸🇰 IGNUM-AS2a00:1e40:a::/48 | ||||||
| PTR | ns1-bra.core.webglobe.com | ||||||
| A | 185.65.223.35🇸🇰 IGNUM-AS185.65.223.0/24 | ||||||
| PTR | ns1-bra.core.webglobe.com | ||||||
| NS | ns2.ignum.cz | ||||||
| A | 2001:1ab0:7e1e:2::5🇨🇿 IGNUM-AS2001:1ab0::/32 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/ | ||||||
| PTR | ns2-prg.core.webglobe.com | ||||||
| A | 217.31.48.201🇨🇿 IGNUM-AS217.31.48.0/20 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/ | ||||||
| PTR | ns2-prg.core.webglobe.com | ||||||
| MX | linuxguru.eu ⭐ 🔒 | ||||||
| A | 77.48.10.152🇨🇿 VODAFONE-CZ-AS77.48.0.0/17 Vodafone Czech Republic a.s. | ||||||
| PTR | ispconfig.chalupsky.org | ||||||
| TXT | v=spf1 mx ip4:77.48.10.152 -all | ||||||
| SOA | ns1.ignum.comhostmaster@ignum.cz 2026-06-30 #1 | ||||||
eu
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | si.dns.eu ⭐ | ||||||
| NS | be.dns.eu | ||||||
| NS | w.dns.eu | ||||||
| NS | x.dns.eu | ||||||
| NS | y.dns.eu | ||||||
| SOA | si.dns.eutech@eurid.eu serial=1126022804 | ||||||
MX for
linuxguru.eu |
Subdomains
server.linuxguru.eu |
Same first word
Similar names
DNS History
6 records (4 active, 2 former)
●MXlinuxguru.eu2015-05-07 → 2026-07-11 · 2 obs
● 2026-07-11 13:43:20
○A109.107.200.1552016-04-19 → 2017-01-23 · 5 obs
● 2016-04-19 13:09:08
● 2017-01-23 16:38:54
○ 2019-03-17 04:36:24
○ 2026-07-11 13:43:20
○A217.16.185.2152015-05-07 → 2015-12-31 · 4 obs
● 2015-12-31 19:25:42
○ 2016-04-19 13:09:08
○ 2026-07-11 13:43:20
●A77.48.10.1522019-03-17 → 2026-07-11 · 3 obs
● 2019-03-17 04:36:24
● 2026-07-11 13:43:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| eu | be.dns.eu, x.dns.eu, y.dns.eu, w.dns.eu... | - |
| linuxguru.eu | ns1.ignum.com, ns2.ignum.cz | - |
✅ Authoritative Response
Server:217.31.48.201
NS records: ns1.ignum.com, ns2.ignum.cz
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 2093ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 77.48.10.152 |
| NS | 2 | ns1.ignum.com, ns2.ignum.cz |
| MX | 1 | linuxguru.eu (pri: 10) |
| TXT | 1 | v=spf1 mx ip4:77.48.10.152 -all |
| SOA | 1 | ns1.ignum.com hostmaster.ignum.cz |
Analysis
Hierarchy
server.linuxguru.eu is a subdomain of linuxguru.eu.
Mail Server Role
linuxguru.eu serves as a mail server for linuxguru.eu.
IP Addresses
linuxguru.eu has exactly one IP address — 77.48.10.152.
Other host names — ispconfig.chalupsky.org, chalupsky.org, server.linuxguru.eu and citrus.chalupsky.org — share IP numbers with linuxguru.eu.
Name Servers
linuxguru.eu is delegated to two name servers: ns1.ignum.com and ns2.ignum.cz.
The name server configuration of linuxguru.eu is shared with other domains, for instance idluh.sk, businessplus.cz, jixe.cz and two others.
The name servers of linuxguru.eu overlap at least partially with those of other domains — among them studyprograms.cz, hortis.net, tradinet.cz and two more.
The name servers ns1.ignum.eu, ns2.ignum.eu and ns3.ignum.eu are commonly seen alongside these name servers.
ns1.ignum.com and ns2.ignum.cz each resolve to two IP addresses: ns1.ignum.com points to 185.65.223.35 and 2a00:1e40:a:53::5, while ns2.ignum.cz points to 217.31.48.201 and 2001:1ab0:7e1e:2::5.
Mail Servers
linuxguru.eu uses exactly one mail server, which is linuxguru.eu.
linuxguru.eu resolves to a single IP number: 77.48.10.152.