Signed-off-by: arraykeys@gmail.com <arraykeys@gmail.com>

README.md

@@ -31,6 +31,7 @@ Proxy是golang实现的高性能http,https,websocket,tcp,udp,socks5代理服务
 - [v3.0手册](https://github.com/snail007/goproxy/tree/v3.0)
 - [v2.x手册](https://github.com/snail007/goproxy/tree/v2.2)
 
+* auto-gen TOC:
 {:toc}
 
 ### Fast Start  

services/socks.go

@@ -393,6 +393,9 @@ func (s *Socks) proxyTCP(inConn *net.Conn, methodReq socks.MethodsRequest, reque
 	defer utils.CloseConn(&outConn)
 	var err interface{}
 	useProxy := true
+	tryCount := 0
+	maxTryCount := 3
+	for {
 		if *s.cfg.Always {
 			outConn, err = s.getOutConn(methodReq.Bytes(), request.Bytes(), request.Addr())
 		} else {
@@ -408,6 +411,13 @@ func (s *Socks) proxyTCP(inConn *net.Conn, methodReq socks.MethodsRequest, reque
 				outConn, err = utils.ConnectHost(request.Addr(), *s.cfg.Timeout)
 			}
 		}
+		tryCount++
+		if err == nil || tryCount > maxTryCount {
+			break
+		} else {
+			log.Printf("get out conn fail,%s,retrying...", err)
+		}
+	}
 	if err != nil {
 		log.Printf("get out conn fail,%s", err)
 		request.TCPReply(socks.REP_NETWOR_UNREACHABLE)