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Netstat Utility - For system administrators, the netstat tool is indispensable as it provides vital insights into device connectivity status and port utilization. Moreover, there are numerous other details about netstat waiting to be explored in this article.
1. What is the netstat command?
Netstat, also referred to as Network Statics, is a command line executed on the Command Prompt tool of Windows. Netstat is commonly utilized for scanning, accessing other machines in the network, remote desktop, and many other utilities.
2. How to Open Netstat Command?
Step 1: Press the Windows + R key combination to open the Run dialog box. Then, type CMD (1) => OK (2)
Step 2: Enter the command netstat and press Enter to automatically scan and find IP addresses, ports on the device.
3. Structure of netstat Command on Windows
There are 12 subcommands in the netstat command structure:
netstat [-a] [-b] [-e] [-f] [-n] [-o] [-p proto] [-r] [-s] [-t] [-v] [interval]
3.1 Netstat -a
With this command structure, administrators will gain information about connections between the computer and network devices, ports currently being listened to for one-way communication between the network modem and devices. The meanings of the listed parameters are:
- Proto: Displays the protocol used, whether TCP or UDP.
- Local Address: IP address + connection port of the device within the network.
- Foreign address: IP address + remote connection port currently active.
- State: Connection status (Listening = currently listening)
3.2 Netstat -b
This command structure will display to the user which programs are currently connected to the Internet and sending data externally. To execute this command, you need to open CMD with Administrator privileges.
3.3 Netstat -e
This command structure will list information about received (received), sent (sent) traffic when accessing the internet on an Ethernet network, packets, error counts...
3.4 Netstat -r
This command will list information about connections to the router, packets sent from your device will be delivered to which address in the network system.
3.5 Netstat -f or Netstat -n
This command will help you view information about IP addresses on the device you are using, the number of ports connected to the Internet.
3.6 Netstat -on
This command structure will display to the user Process ID (PID) alongside information about IP addresses, connection ports, and operational status.
3.7 Netstat -p
Basic structure:
netstat -p [ip/udp/tcp/tcpv6/udpv6/icmp]
This command structure is used to display connection protocol protocols, which can be tcp, udp, and more.
3.8 Netstat -s
With this command syntax, Netstat will provide statistics on IPv4, IPv6, and various metrics on your Ethernet network.
3.9 Combining Commands
In addition to commands like netstat -s or netstat -b, you can combine subparts together such as:
netstat -s -p tcp
netstat -o 6
netstat -b -s
With the insights provided in the article about the netstat command, you can grasp the necessary information and proceed to select and configure as desired. Best of luck!
