Network Monitor Tool (Free)

您可以平进行监控TCP或HTTP，做一个DNS查询和端口扫描服务器上。

Use the Menu to select one of the many tasks.\n\n

Ping, Port Scanner, DNS and Network Info: are the regular tools used in Networking. Ping here uses Socket connect, and not ICMP messages.\n\n

Monitor: Enter an IP address and the tool will monitor the server's health periodically. Either HTTP or a TCP 3-way handshake method is used for checking connectivity.\n

Please kill the app and start afresh for Monitor, in case it does not work.\n

History: Whenever an IP address is entered, it is also saved in History sub-menu. Select the IP address, and click on Select, to auto populate this on all menu screens.