fluka.cern - robtex.com
fluka.cern
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2001:1458:d00:3c::100:d7🇨🇭 CERN2001:1458::/32 European Organization for Nuclear Research | ||||||
| PTR | lbaas-fc36cd0e-c9d9-466e-9869-b292a072f417.cern.ch | ||||||
| A | 188.184.76.146🇨🇭 CERN188.184.0.0/16 -GPN2 | ||||||
| NS | ext-dns-1.cern.ch ⭐ | ||||||
| A | 2001:1458:1:1::5🇨🇭 CERN2001:1458::/32 European Organization for Nuclear Research | ||||||
| PTR | ext-dns-1.cern.ch | ||||||
| A | 192.65.187.5🇨🇭 CERN192.65.184.0/21 -BLK2 | ||||||
| PTR | ext-dns-1.cern.ch | ||||||
| NS | ext-dns-2.cern.ch | ||||||
| A | 2001:1458:1:2::100:85🇨🇭 CERN2001:1458::/32 European Organization for Nuclear Research | ||||||
| PTR | ext-dns-2.cern.ch | ||||||
| A | 192.91.245.85🇨🇭 CERN192.91.244.0/23 - European Laboratory for Particle Physics CH-1211 Geneva 23, Switzerland | ||||||
| PTR | ext-dns-2.cern.ch | ||||||
| SOA | ext-dns-1.cern.chexternal-dns@cern.ch 2019-05-20 #2 | ||||||
cern
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.nic.cern ⭐ | ||||||
| NS | a2.nic.cern | ||||||
| NS | b0.nic.cern | ||||||
| NS | c0.nic.cern | ||||||
| SOA | a0.nic.cernhostmaster@donuts.email serial=1778683382 | ||||||
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●NSext-dns-1.cern.ch2026-04-29 → 2026-05-13 · 2 obs
● 2026-05-13 14:54:52
●NSext-dns-2.cern.ch2026-04-29 → 2026-05-13 · 2 obs
● 2026-05-13 14:54:52
●A188.184.76.1462026-04-29 → 2026-05-13 · 2 obs
● 2026-05-13 14:54:52
●A2001:1458:d00:3c::100:d72026-04-29 → 2026-05-13 · 2 obs
● 2026-05-13 14:54:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cern | a0.nic.cern, a2.nic.cern, b0.nic.cern, c0.nic.cern | 8 records |
| fluka.cern | ext-dns-1.cern.ch, ext-dns-2.cern.ch | - |
✅ Authoritative Response
Server:192.91.245.85
NS records: ext-dns-1.cern.ch, ext-dns-2.cern.ch
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for fluka.cern (unsigned zone)
⏱️ Timing
Total: 2926ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 188.184.76.146 |
| AAAA | 1 | 2001:1458:d00:3c::100:d7 |
| NS | 2 | ext-dns-1.cern.ch, ext-dns-2.cern.ch |
| SOA | 1 | ext-dns-1.cern.ch external-dns.cern.ch |
📌 Glue Records Collected
Total: 8
In-bailiwick: 8 (a0.nic.cern, a0.nic.cern, a2.nic.cern...)
Analysis
IP Addresses
fluka.cern resolves to two IP numbers: 2001:1458:d00:3c::100:d7 and 188.184.76.146.
other host names including hse.cern, lbaas-fc36cd0e-c9d9-466e-9869-b292a072f417.cern.ch, opendays.cern, acceleratingnews.eu and webfest.cern share IP numbers with fluka.cern.
Name Servers
fluka.cern is delegated to two name servers ext-dns-1.cern.ch and ext-dns-2.cern.ch.
fluka.cern shares the same name server setup as other domains, for instance getindico.com, cern70.cern, united-states.cern, stratum-one-lbp.cern.ch and its.cern.ch.
fluka.cern at least partially shares name servers with other domains, for instance 132.12.194.in-addr.arpa, 184.65.192.in-addr.arpa, 187.65.192.in-addr.arpa, 160.16.192.in-addr.arpa and edna-site.org.
These name servers are commonly used with the following name servers: scsnms.switch.ch, ip-cahcp-1.cern.ch, ip-cahcp-2.cern.ch, ccpntc3.in2p3.fr, ccpnvx.in2p3.fr, whqdns1.who.int, whqdns2.who.int, whqdns3.who.int, ns0.diamond.ac.uk and ns1.diamond.ac.uk.
Host names with two IP numbers:
The host name ext-dns-1.cern.ch points to 2001:1458:1:1::5 and 192.65.187.5; the host name ext-dns-2.cern.ch points to 2001:1458:1:2::100:85 and 192.91.245.85.