How to understand isp?

Question

ISPmanager

2 domains -
b2mails.ru / 164.132.45.33
myb2bmails.ru / 51.255.5.87
PTR is normal, ping over the domain gives a normal Ip
, but when I go to 51.255.5.87 I get to b2mails.ru, while I get through the domain normally myb2bmails.ru / 51.255.5.87 I
rummaged through everything, I don’t understand what’s wrong, all ips are assigned, respectively, each to its own domain.

Answer 1

Probably need to tweak this: https://doc.ispsystem.ru/index.php/%D0%9F%D1%80%D0...