I can't access to random subdomain although setting up the cname wildcard

I can’t access to random subdomain although setting up the cname WILDCARD *. For example, I can’t access 11.itproo.com, 12.itproo.com. However, when I setting up specific subdomain like sub.itproo.com, it works

How to access to random subdomain ? Thank you

That’s not a very specific error.

Cloudflare supports wildcard DNS, but only Enterprise plans will let you :orange: Proxy it.

Hi,
Sorry for not mention the detail of the problem. I just updated my thread @sdayman

I can’t replicate that. I added a sub CNAME, and then a wildcard CNAME and they all resolve.

Are the two name servers at the bottom of your DNS page Doug and Savanna?

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Yes,
they are Doug and Savanna


You’ll have to get Support to investigate this. Using your email address associated with your account, email them: support AT cloudflare DOT com

When you get the ticket number in the reply, please post it here.

Hi, my ticket number is 2211447

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You’ll probably get an automated response telling you to ask the community and some links to possible solutions. Make sure you reply back so they know you really need their help.

I’ll put this thread in the escalation queue.

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Hi @thedogcampaign
I was looking into this and could not reproduce this on my zone either.
How was this record added? It seems to be treating the “*” literally instead of like a wildcard:

dig "*.itproo.com" +short
bingwebmaster112.herokuapp.com.
3.229.18.97
54.159.26.13
34.227.42.87
34.228.50.116
52.54.141.46
52.45.150.232
52.22.80.219
34.194.143.156

Hi,
I don’t quite understand what you mean but the value of the content column is
bingwebmaster112.herokuapp.com

Hi @thedogcampaign, I mean what steps you followed to add this dns entry?
Did you do it through the dashboard by clicking on +Add record? If so, what content did you add there? Just * and the CNAME target like bellow?:

Yes, I did it through the dashboard by clicking “Add record” then fill information like below image

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Thanks for confirming.
I will follow up on the ticket then, as this will need further troubleshooting. :slight_smile:

2 Likes

Hi @thedogcampaign!

This is now resolved it seems:

~$ dig @doug.ns.cloudflare.com 11.itproo.com

; <<>> DiG 9.11.5-P4-5.1+deb10u5-Debian <<>> @doug.ns.cloudflare.com 11.itproo.com
; (6 servers found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 40300
;; flags: qr rd ra; QUERY: 1, ANSWER: 9, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;11.itproo.com.                 IN      A

;; ANSWER SECTION:
11.itproo.com.          300     IN      CNAME   bingwebmaster112.herokuapp.com.
bingwebmaster112.herokuapp.com. 60 IN   A       54.236.176.76
bingwebmaster112.herokuapp.com. 60 IN   A       3.221.43.225
bingwebmaster112.herokuapp.com. 60 IN   A       3.219.126.122
bingwebmaster112.herokuapp.com. 60 IN   A       52.200.31.227
bingwebmaster112.herokuapp.com. 60 IN   A       34.199.140.75
bingwebmaster112.herokuapp.com. 60 IN   A       23.22.180.24
bingwebmaster112.herokuapp.com. 60 IN   A       107.20.205.67
bingwebmaster112.herokuapp.com. 60 IN   A       3.213.124.232

;; Query time: 84 msec
;; SERVER: 108.162.193.159#53(108.162.193.159)
;; WHEN: Thu Jul 22 14:02:08 UTC 2021
;; MSG SIZE  rcvd: 211
~$ dig @savanna.ns.cloudflare.com 12.itproo.com

; <<>> DiG 9.11.5-P4-5.1+deb10u5-Debian <<>> @savanna.ns.cloudflare.com 12.itproo.com
; (6 servers found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 7252
;; flags: qr rd ra; QUERY: 1, ANSWER: 9, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;12.itproo.com.                 IN      A

;; ANSWER SECTION:
12.itproo.com.          300     IN      CNAME   bingwebmaster112.herokuapp.com.
bingwebmaster112.herokuapp.com. 60 IN   A       3.224.209.49
bingwebmaster112.herokuapp.com. 60 IN   A       34.205.204.79
bingwebmaster112.herokuapp.com. 60 IN   A       34.206.253.122
bingwebmaster112.herokuapp.com. 60 IN   A       23.22.180.24
bingwebmaster112.herokuapp.com. 60 IN   A       3.223.221.167
bingwebmaster112.herokuapp.com. 60 IN   A       34.194.143.156
bingwebmaster112.herokuapp.com. 60 IN   A       52.0.12.63
bingwebmaster112.herokuapp.com. 60 IN   A       3.223.104.152

;; Query time: 103 msec
;; SERVER: 108.162.194.136#53(108.162.194.136)
;; WHEN: Thu Jul 22 14:03:47 UTC 2021
;; MSG SIZE  rcvd: 211

Kindly mark this thread as resolved by picking one of the answers as the solution.