(Check the active port: for computers connected to the Internet, pay great attention to the switching of some ports. This is to prevent some Trojans from using some ports of the computer to provide remote connections. As a local area network administrator, you should also know the port switch of the computer like the back of your hand. Enter the "active port view" window and click the "Refresh" button to find the local address, the remote address that is transmitting data with the local machine, the data protocol, and the port status. Port scanning: a port is a potential communication channel, that is, an intrusion channel. Many useful information can be obtained by scanning the port of the target computer. Domain name resolution: convert domain name to IP address value. Multi IP view: query the multi IP addresses occupied by a domain name. System function: its function point is shown in Figure 5 on the right. Scanning IP segment setting: if the LAN is divided into several network segments, use this function to set it once, and then the system will automatically scan the set IP segment every time the LAN is scanned. For example, after setting the three IP segments 192.168.0192.168.1192.168.3, the system will automatically scan these three network ends every time. This is very useful for multi segment LANs. Scanning speed setting: the scanning speed can be set. If you slow down the scanning speed, you can scan the computers in the LAN that respond slowly due to the poor network environment. Scan the network: scan the IP address, MAC address, machine name, workgroup, shared file and other information of all computers in the LAN. When the remote computer is equipped with a firewall, it may not be scanned. Send message: you can send information directly to the remote computer. Unregistered versions can only be sent to one computer at a time; The registered version can be sent to all hosts in a workgroup at one time, or to all hosts in the network at one time. When the remote host is windwos9x/me, you must run lanserver under the software installation directory on the remote host once Exe program. Search share: you can search all shared files in the network. After scanning for shares, you can search for all types of shared files by file type. The registered version can save the searched shared files.)
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