不管是在Linux 或Window 上, 你一定或多或少使用過Ping 這個指令吧！ 使用Ping 指令可以讓你迅速知道目標主機現在是否存活(當然有其他例外) 。 ... <看更多>

Ping is a specific ICMP protocol. You cannot send ICMP packets in pure Java. However, you can open a TCP Socket to a specific port and send it ... ... <看更多>

Ping with socket.io. GitHub Gist: instantly share code, notes, and snippets. ... <看更多>

But the the ping transfer the 400 bytes at a time in that socket. How it is possible. At the same time the received packet size is only 72. Why ... ... <看更多>