Block extension for specified IP address

[Dr_tux]

Thanks for your help. I solved it as follows.

 location ~* \.(exe)$ {
               proxy_pass http://127.0.0.1:4545;
               allow 192.168.1.1/32; 
               deny all;
}

Best.

Posted at Nginx Forum: https://forum.nginx.org/read.php?2,290354,290412#msg-290412