天锐局域网扫描器，可扫描局域网内的在线主机及其打开的端口等信息-Tian Rui LAN scanner, can scan online LAN port mainframe and open information

通过端口在线扫描器可以扫描常用的端口和指定的端口是否开放。输入IP或域名，点击开始扫描，即可完成操作。-Online port scanner can scan commonly used ports and designated ports are open. Enter the IP or domain name, click Start scanning to complete the operation.