如何检测服务器IP有没有被TCP阻断

要检测服务器IP有没有被TCP阻断，只需要用tcpping工具ping一下你的服务器IP有没有丢包就能判定了，安装tcpping命令如下：

一、先安装tcptraceroute软件包：

Debian/Ubuntu系统命令如下:

root@itkylin.com:~# sudo apt-get install tcptraceroute

CentOS/REHL系统命令如下:

root@itkylin.com:~# sudo yum install tcptraceroute

二、到tcpping网站下载可执行软件包后直接给执行权限即可运行：

root@itkylin.com:~# cd /usr/bin
root@itkylin.com:~# sudo wget http://www.vdberg.org/~richard/tcpping
root@itkylin.com:~# sudo chmod 755 tcpping

三、运行tcpping命令测试itkylin.com网站IP的线路质量：

root@itkylin.com:~# tcpping www.itkylin.com
seq 0: tcp response from 104.27.152.194 (104.27.152.194) <syn,ack>0.996 ms
traceroute to www.itkylin.com (104.27.152.194), 255 hops max, 60 byte packets
seq 1: tcp response from 104.27.152.194 (104.27.152.194) <syn,ack>1.379 ms
traceroute to www.itkylin.com (104.27.152.194), 255 hops max, 60 byte packets
seq 2: tcp response from 104.27.152.194 (104.27.152.194) <syn,ack>1.769 ms
traceroute to www.itkylin.com (104.27.152.194), 255 hops max, 60 byte packets
seq 3: tcp response from 104.27.152.194 (104.27.152.194) <syn,ack>1.178 ms
traceroute to www.itkylin.com (104.27.152.194), 255 hops max, 60 byte packets
seq 4: tcp response from 104.27.152.194 (104.27.152.194) <syn,ack>1.431 ms
traceroute to www.itkylin.com (104.27.152.194), 255 hops max, 60 byte packets
seq 5: tcp response from 104.27.152.194 (104.27.152.194) <syn,ack>1.719 ms</syn,ack></syn,ack></syn,ack></syn,ack></syn,ack></syn,ack>

使用tcping ip 端口 若返回的结果一会能通一会不通的就是tcp问题了。

教程教你怎么查看服务器有没有被TCP阻断