Changed nameservers to a CDN, now I can't get to port 2083

[GoWilkes]

I recently signed up with Ezoic, and part of the process requires changing the nameservers to their CDN. I did that last night, and now I can't access port 2083! That's cPanel and phpMyAdmin. The browser just runs until it times out.

I can access WHM, though, and can get to phpMyAdmin that way.

I turned off CSF but that had no impact.

Any suggestions where else I should look?

 

[GoWilkes]

Minor update, I added the CDN's IP addresses to Remote MySQL and whitelisted them in cPHulk, but that didn't help.

 

[quietFinn]

Nameservers have nothing to do with ports.
What do you mean by " changing the nameservers to their CDN "?

 

[GoWilkes]

I had the DNS records on the server, with A names for NS1 and NS2. Then the nameservers at the registrar pointed to ns1/ns2.mydomain.com. Standard, I think.

In order to use Ezoic, they copy the DNS records from the server to their end, and I had to change the nameservers to point to the ones they supplied. So now DNS is hosted on their end. I see now that they use Cloudflare.

After changing the nameservers at the registrar, I found that I can't get to mydomain.com/cpanel or mydomain.com:2083. But I CAN get to server.mydomain.com/whm and server.mydomain.com:2087.

Yesterday, when I tried to go to cPanel the browser would run forever before giving me an ERR_CONNECTION_TIMED_OUT. Today it's showing me the Cloudflare version of "Connection timed out", with error code 522. From their timeout page:

An Error 522 means that the request was able to connect to your web server, but that the request didn't finish.

The only thing I changed was the nameservers at the registrar, so something somewhere along the way has to be blocking their IP from accessing the port.

 

[quietFinn]

You could Google for ex. "cloudflare blocking cpanel" and you will get some help.

 

[GoWilkes]

Thanks, @quietFinn. THAT is taking me down a rabbit hole!! LOL

Turns out that Ezoic uses Cloudflare, but I don't have access to CF's full dashboard. So I can't create rules or anything, all I can do is play with the DNS records. I read a lot of people say that they could use cpanel.mydomain.com but not mydomain.com:2083, but that subdomain isn't in my DNS records.

I create an A record for cpanel with my server's IP as the value, but that just takes me to /cgi-sys/defaultwebpage.cgi

If that DNS record is wrong, can you suggest what it should be? I haven't been able to find that, Google results just tell me how to create a DNS record with cPanel :-/

 

[cPRex]

I'd recommend speaking to that CDN provider for their specific workaround. If you have to use the subdomain instead of the direct port, you'll want to make sure the service domains are enabled on the machine - Service and Proxy Subdomains | cPanel & WHM Documentation