windows 下 psping 測tcp連結

一般用telnet ip port做遠端服務是否有開啟的設定，但有點麻煩，參考這兒有linux下的解法

linux hping 安裝與做 tcpping

windows下可以下載免安裝的工具，使用psping的指令做到一樣的效果，下載在這兒

• https://technet.microsoft.com/en-us/sysinternals/psping.aspx

執行的示例如下所示：
C:\>psping www.google.com:80

PsPing v2.01 - PsPing - ping, latency, bandwidth measurement utility
Copyright (C) 2012-2014 Mark Russinovich
Sysinternals - www.sysinternals.com

TCP connect to 64.233.188.103:80:
5 iterations (warmup 1) connecting test:
Connecting to 64.233.188.103:80 (warmup): 1.39ms
Connecting to 64.233.188.103:80: 1.30ms
Connecting to 64.233.188.103:80: 1.57ms
Connecting to 64.233.188.103:80: 1.84ms
Connecting to 64.233.188.103:80: 2.06ms

TCP connect statistics for 64.233.188.103:80:
  Sent = 4, Received = 4, Lost = 0 (0% loss),
  Minimum = 1.30ms, Maximum = 2.06ms, Average = 1.69ms