Τι είναι το PortScan; The ports of a computer are used for communication in IT. The article would become huge if we tried to describe the technical details, but you can understand their function if you consider that ports allow interactions with other Appliances.
Common ports are: TCP 21 FTP, door 23 for Telnet and port 80 for Hypertext Transfer Protocol (HTTP).
While it makes sense that some ports should be open on your system, to be able to use the above services and more. But you should often make sure that only the doors you need are open.
Ports or Ports can reveal information about services running on a device, if they are open, they allow third party connections.
The PortScan is a free portable Windows program that scans your network and displays all the open doors for each device it detects.
Advice: To find the IP address of a device you are using search for cmd.exe, run .exe, type ipconfig, and check the IPv4 address of the adapter listed there.
The program scans shared ports by default, something you can change from the scan type. The two other options provided give you the ability to scan all of your ports.
Scanning is quite fast and results are displayed immediately. Each device is listed with the IP address it uses, along with the hostname. One click on the device displays additional information including the device's Mac address and all open ports found during the scan.
What am I doing next?
One of the goals of PortScan is to check for open ports to determine if they need to be open. The best for your safety is to close all unnecessary ports.
An example: The 554 RTSP port is used by Streaming Protocol Real Time which uses the Windows Media for transmission services streaming. If you are not using Windows Media with this feature, there is no need to have the port open.
As you understand to close ports, you need to know which service or program it uses. If you do not know anything or have any doubts, an internet research or a test will show you.
We should mention that some ports, especially those with five digits, can be used randomly by programs. If for example you run the uTorrent, you will notice that many ports are constantly opening and closing.
You can download the application from the link below
