2025年3月15日 · The netstat (network statistics) command in Linux is used to display information about network connections, routing tables, interface statistics, and more. It is a valuable tool for network troubleshooting and monitoring, allowing users to view active connections and their state.

OPTIONS: Flags to control the behavior and output of netstat. Displays active connections, routing tables, and interface statistics. Shows only TCP connections. Shows only UDP connections. Displays listening ports and sockets. Displays the routing table. Displays network interface statistics. Shows summary statistics for each protocol.

2024年12月17日 · Netstat is a command-line tool used to display various information related to network connections and interfaces on a Linux system. It provides valuable insights into active connections, listening ports, routing tables, and more.

netstat supports a set of options to display active or passive sockets. The options –t , –u , –w , and –x show active TCP, UDP, RAW, or Unix socket connections. If you provide the –a flag in addition, sockets that are waiting for a connection (i.e., listening) are displayed as well.

2025年3月27日 · The netstat -a command displays all active network connections, including listening and non-listening sockets. It helps diagnose network activity, open ports, and potential security risks by identifying unexpected connections.

netstat -o: Displays active TCP connections and includes the process ID (PID) for each connection. netstat -e: Displays Ethernet statistics, such as the number of bytes and packets sent and received. netstat -au: It shows all the active UDP internet connections regardless of the state: netstat -lt: List of all Listening TCP Ports: netstat -lu

2020年11月18日 · Shows network addresses as numbers. When this flag is not specified, the netstat command interprets addresses where possible and displays them symbolically. This flag can be used with any of the display formats.-protocol protocol

2014年1月14日 · These characters are one-character versions of the long flag names that are printed when you display the interface configuration with ifconfig: B = A broadcast address has been set. L = This interface is a loopback device. O = ARP is turned off for this interface. P = This is a point-to-point connection. R = Interface is running.

If you want to see what (TCP) ports your machine is listening on, use netstat --tcp --listening. Another useful flag to add to this is --programs which indicates which process is listening on the specified port.

2022年1月2日 · netstat is used to list out all the network (socket) connections of a system. It is a very useful tool for checking system safety. Here is the list of all the possible flags that we can use with the netstat command. -p process details of the connection. Root privilege is …