How to make a redirect from a subdomain to the main domain?

Question

Nginx

Hello.
There is a main domain https://topligarun.ru/ on Bitrix. the sales regions module is installed.
There are many subdomains by city.
The task is to make a redirect to the main domain from some cities.
For example, https://anapa.topligarun.ru/ etc.
Tell me where to do it in nginx or apache, and how to do it right?
I've tried it here and there, it doesn't work.

Answer 1

server {
    listen       80;
    server_name  anapa.topligarun.ru msk.topligarun.ru spb.topligarun.ru; 
    return       301 http://topligarun.ru$request_uri;
}
server {
    listen       80;
    server_name  topligarun.ru
    #тут основной конфиг
}

Answer 2

if ($host != topligarun.ru  )
{return 301 https://topligarun.ru$request_uri;}

Something like this