linux nginx php-fpm被攻击

1.nginx错误日志：报错

2018/05/30 16:30:55 [error] 8765#0: *1485 connect() to unix:/tmp/php-70-cgi.sock failed (11: Resource temporarily unavailable) while connecting to upstream, client: 176.31.106.27, server: v9.getfollowers.cn, request: "POST /order/coinorder_like HTTP/1.0", upstream: "fastcgi://unix:/tmp/php-70-cgi.sock:", host: "v9.getfollowers.cn"

2.原因，一直有人请求这个端口

3.方法：

　　1.nginx限制

　　2.linux防火墙的限制