NETSTAT Windows Command Guide
The Windows netstat command is a versatile tool for displaying active network connections, routing tables, interface statistics, and other important networking information. By running netstat in the command prompt, users can quickly identify established TCP connections, view listening ports, check network interface details, and troubleshoot network-related issues. This handy command provides vital insights into a system’s network activity, making it an essential tool for network administrators, IT professionals, and anyone looking to understand and optimize their network connections on a Windows operating system.
NETSTAT Syntax:
Section titled “NETSTAT Syntax:”netstat [option] [parameter]Options:
Section titled “Options:”| Option | Description |
|---|---|
| -a | Displays all connections and listening ports. |
| -b | Displays the executable involved in creating each connection or listening port. |
| -e | Displays Ethernet statistics. |
| -f | Displays Fully Qualified Domain Names (FQDN) for foreign addresses. |
| -n | Displays addresses and port numbers in numerical form. |
| -o | Displays the owning process ID associated with each connection. |
| -p | Shows connections for the specified protocol. |
| -r | Displays the contents of the routing table. |
| -s | Displays per-protocol statistics. |
| -t | Displays the current connection offload state. |
Parameters:
Section titled “Parameters:”| Parameter | Description |
|---|---|
| protocol | Specifies the protocol to display. Can be TCP, UDP, TCPv6, or UDPv6. |
| interval | Redisplays the output every “interval” seconds. |
NETSTAT Command Samples:
Section titled “NETSTAT Command Samples:”Display All Active Network Connections
Section titled “Display All Active Network Connections”netstatDisplays all active network connections and listening ports.
Display Active TCP Connections
Section titled “Display Active TCP Connections”netstat -aDisplays all active TCP connections and listening ports.
Display Active UDP Connections
Section titled “Display Active UDP Connections”netstat -uDisplays all active UDP connections.
Display PID and Process Name for Active Connections
Section titled “Display PID and Process Name for Active Connections”netstat -bDisplays the PID and process name for each active connection.
Display Statistics for Network Interfaces
Section titled “Display Statistics for Network Interfaces”netstat -eDisplays statistics for network interfaces, including packets and bytes sent and received.
Display Active Connections in Numerical Form
Section titled “Display Active Connections in Numerical Form”netstat -nDisplays active connections in numerical form (IP addresses and port numbers).
Display Routing Table
Section titled “Display Routing Table”netstat -rDisplays the routing table, including destination, gateway, and interface information.
NETSTAT FAQ:
Section titled “NETSTAT FAQ:”How do I use netstat in Windows?
Section titled “How do I use netstat in Windows?”To use the netstat command in Windows, execute the following command:
netstat --option <value>What is the purpose of netstat in Windows?
Section titled “What is the purpose of netstat in Windows?”The netstat command in Windows is used to display active TCP connections, listening ports, and related network statistics.
How can I display all active TCP connections using netstat?
Section titled “How can I display all active TCP connections using netstat?”To display all active TCP connections, run the following command:
netstat -aHow do I list all listening ports with netstat in Windows?
Section titled “How do I list all listening ports with netstat in Windows?”To list all listening ports, use the following netstat command:
netstat -anHow can I find the PID (Process ID) associated with a specific network connection using netstat?
Section titled “How can I find the PID (Process ID) associated with a specific network connection using netstat?”To find the PID associated with a network connection, you can execute:
netstat -anoHow can I filter the netstat output to only display specific protocol connections, such as TCP or UDP?
Section titled “How can I filter the netstat output to only display specific protocol connections, such as TCP or UDP?”To filter the netstat output by protocol (TCP or UDP), you can use:
netstat -t //for TCP connectionsnetstat -u //for UDP connectionsApplications of the NETSTAT Command
Section titled “Applications of the NETSTAT Command”- Displaying active network connections
- Listing listening ports
- Showing network statistics
- Displaying the routing table