How to treat the error The site my.mysite.ru did not send data. ERR_EMPTY_RESPONSE?

Question

Domain Name System

Hello. I have a main domain mysite.ru. I created 3 subdomains.
my.mysite.ru
mine.mysite.ru
yours.mysite.ru
In the hosting panel (fastVPS) I went to the DNS settings - zone of the main domain mysite.ru and added 3 A records
Name my IP 1.1.1.1.
The mine IP name is 1.1.1.1.
Name yours IP 1.1.1.1.
Passed resp. more than 48 hours + I registered domains and IP in hosts.
Ping passes -0 lost packets.
Error:
Page not available
Site my.mysite.ru did not send data.
ERR_EMPTY_RESPONSE
What did I do wrong?
Or maybe something else needs to be done. Domain on Vesta. There are A records of my domains 1.1.1.1.
and there is NS dns.fastdns24.com.

Answer 1

Probably problems with setting up sites in the vest itself, otherwise everything would work at least for this.
Or you spelled it wrong.

In the hosting panel (fastVPS), I went to the DNS settings - zones of the main domain mysite.ru and added 3 A records

Not the best option, it is much easier to register the direction of all subdomains to the server at once.
If you tell me the domain, I can tell you where I went wrong.
PS I'm afraid my answer is late, but still suddenly helps)

Answer 2

In your case, there was an error in the server settings. But others may have other problems. Therefore, I decided to supplement the answer, maybe it will be useful to someone.
1. Also try resetting your network settings.
2. Clear your browser cache.
3. Change DNS to google, yandex or cloudflare. Usually, when creating domains, if the provider's servers are used, the information is not updated so quickly. And using global addresses fixes the problem.
4. Check if the Internet is working. You can use the command ping habr.com -n 20. Sending packets will start. If you see a message about the interval exceeded, then most likely the problem is on the side of a poor Internet connection. Contact your ISP to resolve the issue. Read more here https://onoutbukax.ru/err-empty-response/