The iputils package contains ping, a basic networking tool. The ping command sends a series of ICMP protocol ECHO_REQUEST packets to as pecified network host and can tell you if that machine is alive and receiving networ

在linux环境下编译后，可以单独执行，测试linux的网络端口，类似于windows的ping命令。-Compiled in the linux environment, you can separate the implementation, testing, linux network port, similar to the windows of the ping command.