tcping

官网

http://www.tucows.com/downloads

安装

[root@instance-1 ~]# cd /usr/local/src/
[root@instance-1 src]# wget http://linuxco.de/tcping/tcping-1.3.5.tar.gz
[root@instance-1 src]# tar zxf tcping-1.3.5.tar.gz 
[root@instance-1 src]# cd tcping-1.3.5
[root@instance-1 tcping-1.3.5]# gcc -o tcping tcping.c
[root@instance-1 tcping-1.3.5]# cp tcping /usr/bin

测试

[root@instance-1 ~]# tcping www.centoscn.vip 80
www.centoscn.vip port 80 open