limit_req_zone $binary_remote_addr zone=one:10m rate=25r/s;
limit_conn_zone $binary_remote_addr zone=perip:10m;
limit_conn_zone $server_name zone=perserver:10m;
limit_conn perip 50;
location ~ \.(php)$ {
limit_req zone=one burst=35;
try_files $uri =404;
.....
.....
.....
}