Unbound query high response time for some domains

Zareh Kasparian

1/19/24, 5:54 PM

I'm running unbound version 1.17.0 on FreeBSD 12.2,

For unknow reason I have high query response time for some domains. For example when I run the query for "OKR.com" it takes around 4 Seconds to get the answer back.Knowing that there is no network issue, this happens from some domains.

even from the server it self.

[root@Resolver01 ~]# dig -t A okr.com @127.0.0.1

; <<>> DiG 9.16.26 <<>> -t A okr.com @127.0.0.1
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 4788
;; flags: qr rd ra; QUERY: 1, ANSWER: 10, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1472
;; QUESTION SECTION:
;okr.com.                       IN      A

;; ANSWER SECTION:
okr.com.                600     IN      CNAME   okr.com.w.cdngslb.com.
okr.com.w.cdngslb.com.  60      IN      CNAME   okr.com.queniurc.com.
okr.com.queniurc.com.   60      IN      A       47.246.49.228
okr.com.queniurc.com.   60      IN      A       47.246.49.231
okr.com.queniurc.com.   60      IN      A       47.246.49.230
okr.com.queniurc.com.   60      IN      A       47.246.49.226
okr.com.queniurc.com.   60      IN      A       47.246.49.225
okr.com.queniurc.com.   60      IN      A       47.246.49.227
okr.com.queniurc.com.   60      IN      A       47.246.49.229
okr.com.queniurc.com.   60      IN      A       47.246.49.232

;; Query time: 4444 msec           <<------------>> Time Taken:~ 4 Seconds
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Thu Jan 19 21:06:17 +0330 2023
;; MSG SIZE  rcvd: 227

Questions:

1- What is the reason for this issue?

2- Is there any possible solutions to get the names of domains, which takes high response time?

0 + 0

domain-name-system

unbound

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: Unbound query high response time for some domains

Post an answer

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