Nginx将所有子域重写为www

Question

我试图找到正确的正则表达式将所有子域重写为www。

因此，例如将w7w.domain.com更改为www.domain.com

或alskdaslkdja.domain.com到www.domain.com

我尝试了很多事情，我的最后一次尝试是：

if ($host ~* (?!www\.)(.*))
{
  set $host_without_www www.$1;
  rewrite ^(.*)$ http://$host_without_www$1 permanent; 
}

但这也不起作用。

我需要抓住这些，不能仅仅将wildcart重写为www.domain.com，因为我在该实例上提供了多个域。

有任何想法吗？

Answer 1

server {
    listen          xx.xx.xx.xx:80;
    server_name     www.example.com;
    # ....
}
server {
    listen          xx.xx.xx.xx:80;
    server_name     example.com *.example.com;
    rewrite         ^ http://www.example.com$request_uri? permanent;
}

Answer 2

server {
  # Prefix server wildcards are checked before regexes, so this
  # will catch anything starting with www.
  server_name www.*;
}

server {
  # This should redirect anything that didn't match the first
  # server to domain.tld

  # I think this regex will capture the domain.tld
  server_name ~(?<domain>[^.]+\.[^.]+)$

  rewrite ^ http://www.$domain$request_uri? permanent;
}