What service is port 445?

Port 445 provides file or printer sharing services in the LAN; port 445 is also a TCP port. This port plays the same role as port 139 in Windows 2000 Server or Windows Server 2003 systems.

The operating environment of this article: windows7 system, Dell G3 computer

Port 445 is also a TCP port, which is used in Windows 2000 Server or Windows The role played in the Server 2003 system is exactly the same as port 139. Specifically, it also provides file or printer sharing services in a local area network.

However, this port works based on the CIFS protocol (Common Internet File System Protocol), and port 139 is based on the SMB protocol (Server Protocol Suite) to provide external sharing services. Similarly, an attacker who establishes a request connection with port 445 can also obtain various shared information within the specified LAN.

Port 445 is a port with mixed reputation. With it, we can easily access various shared folders or shared printers in the LAN, but it is precisely because of it that hackers have an opportunity to take advantage of it. They can secretly share your hard drive through this port, and even format your hard drive silently!

File sharing in the LAN simple group cannot be realized after port 445 is turned off. But you can also achieve file sharing by setting up an FTP server. It can be closed!

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