簡述
網絡延遲用的最多的是基於icmp協議的ping，但是對於一些禁止ping的服務端將不起作用，這個時候如果我們想要測試網絡延遲那么可以使用tcping工具；此工具的原理和他的名字一樣是基於tcp協議的，通過tcp的三次握手實現；
安裝
Centos：
yum install tcptraceroute bc -y
wget -O tcping https://soft.mengclaw.com/Bash/TCP-PING
chmod +x tcping
mv tcping /usr/bin
Windows:
windows的tcping和linux下的不是同一個軟件，但是基礎的使用方式差不多，具體看下幫助信息，下載地址如下：
https://download.elifulkerson.com//files/tcping/0.39/tcping.exe
使用
[root@192.168.128.129 ~]# ./tcping
tcpping v1.7 Richard van den Berg <richard@vdberg.org>
Usage: tcping [-d] [-c] [-C] [-w sec] [-q num] [-x count] ipaddress [port]
-d print timestamp before every result
-c print a columned result line
-C print in the same format as fping's -C option
-w wait time in seconds (defaults to 3)
-r repeat every n seconds (defaults to 1)
-x repeat n times (defaults to unlimited)
See also: man tcptraceroute
demo:
[root@192.168.128.128 ~]# tcping baidu.com 443
traceroute to shein.com (35.166.139.52), 255 hops max, 60 byte packets
seq 0: tcp response from ec2-35-166-139-52.us-west-2.compute.amazonaws.com (35.166.139.52) <syn,ack> 2.964 ms
traceroute to shein.com (35.166.139.52), 255 hops max, 60 byte packets
seq 1: tcp response from ec2-35-166-139-52.us-west-2.compute.amazonaws.com (35.166.139.52) <syn,ack> 3.065 ms
traceroute to shein.com (35.166.139.52), 255 hops max, 60 byte packets
seq 2: tcp response from ec2-35-166-139-52.us-west-2.compute.amazonaws.com (35.166.139.52) <syn,ack> 2.683 ms
traceroute to shein.com (35.166.139.52), 255 hops max, 60 byte packets