Cannot resolve nbp.pl


#1

cannot lookup www.nbp.pl and nbp.pl with cloudflare dns 1.1.1.1 but it works with 8.8.8.8 or ISP-DNS.
Can someone confirm this is a bug?


#2

working here:

nslookup nbp.pl 1.1.1.1
Server: 1.1.1.1
Address: 1.1.1.1#53

Non-authoritative answer:
Name: nbp.pl
Address: 185.16.147.10

Please follow these steps and porst your results here. This helps a lot to troubleshoot this.


#3

[email protected]:~# dig nbp.pl @1.1.1.1

; <<>> DiG 9.11.3-1-Debian <<>> nbp.pl @1.1.1.1
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 38276
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1452
;; QUESTION SECTION:
;nbp.pl. IN A

;; AUTHORITY SECTION:
nbp.pl. 900 IN SOA dns.nbp.pl. root.dns.nbp.pl. 19 900 300 604800 86400

;; Query time: 29 msec
;; SERVER: 1.1.1.1#53(1.1.1.1)
;; WHEN: Fri Jun 22 05:56:02 EDT 2018
;; MSG SIZE rcvd: 80

[email protected]:~# dig nbp.pl @1.0.0.1

; <<>> DiG 9.11.3-1-Debian <<>> nbp.pl @1.0.0.1
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 58765
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1452
;; QUESTION SECTION:
;nbp.pl. IN A

;; AUTHORITY SECTION:
nbp.pl. 900 IN SOA dns.nbp.pl. root.dns.nbp.pl. 19 900 300 604800 86400

;; Query time: 28 msec
;; SERVER: 1.0.0.1#53(1.0.0.1)
;; WHEN: Fri Jun 22 05:56:32 EDT 2018
;; MSG SIZE rcvd: 80

[email protected]:~# dig nbp.pl @8.8.8.8

; <<>> DiG 9.11.3-1-Debian <<>> nbp.pl @8.8.8.8
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 63935
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;nbp.pl. IN A

;; ANSWER SECTION:
nbp.pl. 1190 IN A 185.16.147.10

;; Query time: 26 msec
;; SERVER: 8.8.8.8#53(8.8.8.8)
;; WHEN: Fri Jun 22 05:56:37 EDT 2018
;; MSG SIZE rcvd: 51

dig +short CHAOS TXT id.server @1.1.1.1
“vie02”

dig +short CHAOS TXT id.server @1.0.0.1
“vie02”


#4

any news on that?


#5

Do I need to provide any more information or just wait?


#6

Why does nobody answer?


#7

Hi, it seems to be a problem with 195.85.196.18 (dns3.nbp.pl), sometimes it’s returning an empty answer, which is why it’s working in some places and not in some others:

;; ->>HEADER<<- opcode: QUERY; status: NOERROR; id: 27840
;; Flags: qr aa  QUERY: 1; ANSWER: 0; AUTHORITY: 1; ADDITIONAL: 1

;; EDNS PSEUDOSECTION:
;; Version: 0; flags: ; UDP size: 4096 B; ext-rcode: Unused

;; QUESTION SECTION
nbp.pl.		A

;; AUTHORITY SECTION
nbp.pl.             	900	SOA	dns.nbp.pl. root.dns.nbp.pl. 19 900 300 604800 86400

I’ll try to reach out to the provider.


#8

thank you so much for your answer.


#9

NBP has responded (thanks!), looks like some queries were treated as if they were coming from their internal network (source address overlap). It seems like it’s fixed as of now, can you check?


#10

thank you, yes! it is working