Is it possible to register all subdomains?

Harley · 2023-07-17T15:32:14.351Z

I want to register all subdomains below .studioProject.h-and-c.co.uk

Z

zegevlier•7/17/23, 3:47 PM

What do you mean by register?

Zzegevlier What do you mean by register?

H

HarleyOP•7/17/23, 4:25 PM

like, show a page on all of them

C

Chaika•7/17/23, 4:44 PM

You can use wildcard records: https://blog.cloudflare.com/wildcard-proxy-for-everyone/
But keep in mind, the free universal ssl certificate only covers first level subdomains. That is, if your domain is

h-and-c.co.uk

h-and-c.co.uk

h-and-c.co.uk

h-and-c.co.uk, it would cover

*.h-and-c.co.uk

*.h-and-c.co.uk

*.h-and-c.co.uk

*.h-and-c.co.uk, but not

*.studioProject.h-and-c.co.uk

*.studioProject.h-and-c.co.uk

*.studioProject.h-and-c.co.uk

*.studioProject.h-and-c.co.uk. You'd have to buy Advanced Certificate Manager (ACM - $10 USD/month) and issue another wildcard cert from it

C

Chaika•7/17/23, 4:46 PM

(That is, if you want to take advantage of Cloudflare's CDN/reverse proxy. If you don't, you can use unproxied wildcard records and not need a cert covering it in Cloudflare, your origin would still need a valid cert for it though)

H

HarleyOP•7/17/23, 5:40 PM

ok

H

HarleyOP•7/17/23, 5:57 PM

i'm using dns only and for some reason, hi.hello.h-and-c.co.uk says that the domain doesn't exist but i have created a wildcard dns certificate for *.*.studioProject.h-and-c.co.uk

C

Chaika•7/17/23, 6:05 PM

you can't have two wildcards, only one, and it has to be leftmost

C

Chaika•7/17/23, 6:05 PM

check the blog I linked above, it explains most of the rules/limits around it

H

HarleyOP•7/17/23, 6:05 PM

how do i do that then?

C

Chaika•7/17/23, 6:05 PM

If you create one for *.studioProject.h-and-c.co.uk, hi.hello.studioProject.h-and-c.co.uk would be covered

C

Chaika•7/17/23, 6:05 PM

Wildcards are only supported on the first label. Meaning something like subdomain.*.mycoolwebpage.xyz is not a wildcard on the level of the asterisk character. If you create a DNS record with that name, the asterisk is interpreted as the literal character and not as the wildcard operator.

You cannot create wildcards on multiple levels. So if you create a DNS record on *.*.mycoolwebpage.xyz, only the first asterisk is interpreted as a wildcard while the second one is interpreted as the literal “*” character.

Wildcards will be applied for multiple levels. But a specific record on any equal or lower level will terminate anything on or below this specific record — independent of the type of that specific record. Here is an example. If you have only these two records on your domain

Wildcards are only supported on the first label. Meaning something like subdomain.*.mycoolwebpage.xyz is not a wildcard on the level of the asterisk character. If you create a DNS record with that name, the asterisk is interpreted as the literal character and not as the wildcard operator.

You cannot create wildcards on multiple levels. So if you create a DNS record on *.*.mycoolwebpage.xyz, only the first asterisk is interpreted as a wildcard while the second one is interpreted as the literal “*” character.

Wildcards will be applied for multiple levels. But a specific record on any equal or lower level will terminate anything on or below this specific record — independent of the type of that specific record. Here is an example. If you have only these two records on your domain

Wildcards are only supported on the first label. Meaning something like subdomain.*.mycoolwebpage.xyz is not a wildcard on the level of the asterisk character. If you create a DNS record with that name, the asterisk is interpreted as the literal character and not as the wildcard operator.

You cannot create wildcards on multiple levels. So if you create a DNS record on *.*.mycoolwebpage.xyz, only the first asterisk is interpreted as a wildcard while the second one is interpreted as the literal “*” character.

Wildcards will be applied for multiple levels. But a specific record on any equal or lower level will terminate anything on or below this specific record — independent of the type of that specific record. Here is an example. If you have only these two records on your domain

Wildcards are only supported on the first label. Meaning something like subdomain.*.mycoolwebpage.xyz is not a wildcard on the level of the asterisk character. If you create a DNS record with that name, the asterisk is interpreted as the literal character and not as the wildcard operator.

You cannot create wildcards on multiple levels. So if you create a DNS record on *.*.mycoolwebpage.xyz, only the first asterisk is interpreted as a wildcard while the second one is interpreted as the literal “*” character.

Wildcards will be applied for multiple levels. But a specific record on any equal or lower level will terminate anything on or below this specific record — independent of the type of that specific record. Here is an example. If you have only these two records on your domain

H

HarleyOP•7/17/23, 6:05 PM

ok

H

HarleyOP•7/17/23, 6:06 PM

i with the cloudflare dashboard would point that out as an error

H

HarleyOP•7/17/23, 6:06 PM

still doesn't say it

H

HarleyOP•7/17/23, 6:07 PM

hello.studioProject.h-and-c.co.uk now says 404 and hi.hello.studioProject.h-and-c.co.uk still doesn't exist

C

Chaika•7/17/23, 6:09 PM

The 404 is going to be from your origin, not a cloudflare thing

CChaika The 404 is going to be from your origin, not a cloudflare thing

H

HarleyOP•7/17/23, 6:09 PM

i know that

C

Chaika•7/17/23, 6:09 PM

what's the record you created exactly, just *.studioProject.h-and-c.co.uk?

H

HarleyOP•7/17/23, 6:09 PM

*.studioproject on the dashboard

C

Chaika•7/17/23, 6:12 PM

The recursion stops the second it hits anything that does exist. For example, if you have a record for

hello.studioproject

hello.studioproject

hello.studioproject

hello.studioproject, the wildcard will stop recursing, and not hit

hi.hello.studioproject

hi.hello.studioproject

hi.hello.studioproject

hi.hello.studioproject

H

HarleyOP•7/17/23, 6:12 PM

ok, these are all of the records for .studioproject

H

HarleyOP•7/17/23, 6:12 PM

TXT
hi.hello.studioproject

H

HarleyOP•7/17/23, 6:13 PM

A
*.studioproject

C

Chaika•7/17/23, 6:13 PM

Right, so since you have a TXT Record for that, the A wildcard won't apply

C

Chaika•7/17/23, 6:13 PM

you'd have to manually create the A record for that

H

HarleyOP•7/17/23, 6:13 PM

but i need a txt or my hosting provider won't work

H

HarleyOP•7/17/23, 6:13 PM

all of my A records go to the same ip if that helps

C

Chaika•7/17/23, 6:14 PM

Should the txt record be wildcard, or does it have to be on hi.hello?

H

HarleyOP•7/17/23, 6:14 PM

hi.hello

H

HarleyOP•7/17/23, 6:16 PM

i removed the txt and it still doesn't work

C

Chaika•7/17/23, 6:16 PM

Then if you want the same wildcard behavior on hi.hello, create another A record on hi.hello.studioproject with the same value, and then a second wildcard on *.hi.hello.studioproject with the same value, and it'll be like the txt record isn't therre

HHarley i removed the txt and it still doesn't work

C

Chaika•7/17/23, 6:16 PM

That's just cache
;; QUESTION SECTION:
;hi.hello.studioProject.h-and-c.co.uk. IN A

;; ANSWER SECTION:
hi.hello.studioProject.h-and-c.co.uk. 300 IN A redacted

H

HarleyOP•7/17/23, 6:16 PM

tf?

C

Chaika•7/17/23, 6:17 PM

You can use dig on Linux, i.e

dig hi.hello.studioProject.h-and-c.co.uk @aarav.ns.cloudflare.com

dig hi.hello.studioProject.h-and-c.co.uk @aarav.ns.cloudflare.com

dig hi.hello.studioProject.h-and-c.co.uk @aarav.ns.cloudflare.com

dig hi.hello.studioProject.h-and-c.co.uk @aarav.ns.cloudflare.com querying your authoritive nameserver to test things without cache getting in the way, Cf's DNS propogation is pretty fast, like a few seconds world wide, ignoring cache

H

HarleyOP•7/17/23, 6:17 PM

and u just exposed my hosting ip :P

C

Chaika•7/17/23, 6:17 PM

well with dns-only it's always going to be exposed, but sure I can edit it out

H

HarleyOP•7/17/23, 6:18 PM

i still don't get it

H

HarleyOP•7/17/23, 6:18 PM

so, what do i put in the a record

C

Chaika•7/17/23, 6:18 PM

This is the condition you are currently hitting that is confusing you

Wildcards will be applied for multiple levels. But a specific record on any equal or lower level will terminate anything on or below this specific record — independent of the type of that specific record.

H

HarleyOP•7/17/23, 6:18 PM

H

HarleyOP•7/17/23, 6:19 PM

so, what do i put in that

C

Chaika•7/17/23, 6:19 PM

For what? what's your goal?

C

Chaika•7/17/23, 6:19 PM

Maybe it's better to ask what specifically you are confused about

H

HarleyOP•7/17/23, 6:19 PM

to get *.*.studioproject.h-and-c.co.uk working

C

Chaika•7/17/23, 6:20 PM

You're fine with DNS-only right? and you want the TXT record on hi.hello.studioproject?

H

HarleyOP•7/17/23, 6:20 PM

yes

H

HarleyOP•7/17/23, 6:20 PM

i have it as dns only so that cf doesn't keep breaking things

H

HarleyOP•7/17/23, 6:20 PM

because that's what it keeps doing as proxied

C

Chaika•7/17/23, 6:21 PM

probably because your configuration doesn't support ssl/tls

C

Chaika•7/17/23, 6:21 PM

anyway, you would want your records like this

A *.studioproject.h-and-c.co.uk <serverip> dns-only
A hi.hello.studioproject.h-and-c.co.uk <serverip> dns-only
A *.hi.hello.studioproject.h-and-c.co.uk <serverip> dns-only
TXT hi.hello.studioproject.h-and-c.co.uk <txt>

A *.studioproject.h-and-c.co.uk <serverip> dns-only
A hi.hello.studioproject.h-and-c.co.uk <serverip> dns-only
A *.hi.hello.studioproject.h-and-c.co.uk <serverip> dns-only
TXT hi.hello.studioproject.h-and-c.co.uk <txt>

A *.studioproject.h-and-c.co.uk <serverip> dns-only
A hi.hello.studioproject.h-and-c.co.uk <serverip> dns-only
A *.hi.hello.studioproject.h-and-c.co.uk <serverip> dns-only
TXT hi.hello.studioproject.h-and-c.co.uk <txt>

A *.studioproject.h-and-c.co.uk <serverip> dns-only
A hi.hello.studioproject.h-and-c.co.uk <serverip> dns-only
A *.hi.hello.studioproject.h-and-c.co.uk <serverip> dns-only
TXT hi.hello.studioproject.h-and-c.co.uk <txt>

Is it possible to register all subdomains?

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