Open
Description
Platform
Other
Protocol
Regular
Do you use AdGuard app?
Yes I am
Your configuration
No response
Traceroute to AdGuard DNS
traceroute to 94.140.14.14 (94.140.14.14), 64 hops max, 40 byte packets
1 10.0.0.1 (10.0.0.1) 42.787 ms 24.597 ms 2.991 ms
2 192.168.30.99 (192.168.30.99) 3.446 ms 3.296 ms 2.612 ms
3 vl998.core1-m1.as132405.net (103.13.86.193) 12.141 ms 17.422 ms 12.233 ms
4 et15-707.nxtpe01.per01.nexthop.net.au (103.232.248.118) 19.077 ms 11.383 ms 11.007 ms
5 et51-1-5.nxtpe04.syd01.nexthop.net.au (103.251.4.18) 87.679 ms 161.864 ms 54.689 ms
6 et30-1.nxtpe01.syd01.nexthop.net.au (103.251.4.52) 55.728 ms 52.550 ms 64.488 ms
7 202.77.88.64 (202.77.88.64) 66.835 ms 120.486 ms 53.089 ms
8 dns.adguard-dns.com (94.140.14.14) 53.371 ms 55.546 ms 57.695 ms
Issue Details
For a domain that has both a CNAME and a TXT record with identical names e.g.:
foo.eggmaps.com. 300 IN TXT "bar"
foo.eggmaps.com. 64 IN CNAME www.example.com.AdGuard DNS incorrectly returns the CNAME data even when the query type is TXT :
; <<>> DiG 9.10.6 <<>> +nsid TXT foo.eggmaps.com @dns.adguard.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 27431
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 1, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 0
; NSID
;; QUESTION SECTION:
;foo.eggmaps.com. IN TXT
;; ANSWER SECTION:
foo.eggmaps.com. 64 IN CNAME www.example.com.
www.example.com. 64 IN CNAME www.example.com-v4.edgesuite.net.
www.example.com-v4.edgesuite.net. 64 IN CNAME a1422.dscr.akamai.net.
;; AUTHORITY SECTION:
dscr.akamai.net. 64 IN SOA n0dscr.akamai.net. hostmaster.akamai.com. 1738136155 1000 1000 1000 1800
;; Query time: 53 msec
;; SERVER: 94.140.15.15#53(94.140.15.15)
;; WHEN: Wed Jan 29 15:39:51 AWST 2025
;; MSG SIZE rcvd: 213
Other DNS services return the correct answer for the query's record type. E.g. with cloudflare:
; <<>> DiG 9.10.6 <<>> +nsid TXT foo.eggmaps.com @1.1.1.1
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 7259
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1232
; NSID: 38 34 6d 34 34 ("84m44")
;; QUESTION SECTION:
;foo.eggmaps.com. IN TXT
;; ANSWER SECTION:
foo.eggmaps.com. 300 IN TXT "bar"
;; Query time: 53 msec
;; SERVER: 1.1.1.1#53(1.1.1.1)
;; WHEN: Wed Jan 29 15:40:13 AWST 2025
;; MSG SIZE rcvd: 69
Google, Cloudflare and OpenDNS all behave properly.
Expected Behavior
I expected the AdGuard DNS server to return the TXT record when requested, and the CNAME record when requested.
Actual Behavior
AdGuard DNS server returns the CNAME record and doesn't return the TXT record, even when the TXT resource record type is specified.
Screenshots
Screenshot 1:
Additional Information
No response