将网站http跳转至https，并将www域名重定向至不带www

server {
    listen 80;
    ...
    return 301 https://$server_name$request_uri;
}

server {
    listen 443;
    ...
}

    if ($http_host = www.liaobu.de) {
    return 301 https://liaobu.de$request_uri;
    }

server {
    listen 80;
    ...
    return 301 https://$server_name$request_uri;
}

server {
    listen 443;
    if ($http_host = www.liaobu.de) {
    return 301 https://liaobu.de$request_uri;
    }
    ...
}