日志里有很多"POST /?api=ping

218.82.25.210 - - [17/Jun/2017:23:36:55 +0800] "POST /?api=profile HTTP/1.1" 403 564 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36"
218.82.25.210 - - [17/Jun/2017:23:36:55 +0800] "POST /?api=ping HTTP/1.1" 403 564 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36"
218.82.25.210 - - [17/Jun/2017:23:36:55 +0800] "POST /?api=proxies HTTP/1.1" 403 564 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36"

来自全国各地不固定的ip，请问这个WAF防火墙怎么设置呢？访问频率还不高，1秒钟3次