Linux命令——netstat

参考：20 Netstat Commands for Linux Network Management

Foreword

Print network connections, routing tables, interface statistics, masquerade connections, and multicast memberships

Options

-a：Show both listening and non-listening (for TCP this means established connections) sockets

-at：列出Active Internet connections (servers and established)

-au：列出Active Internet connections (servers and established)

-ax：列出Unix domain sockets

-l：Show only listening sockets.

-lt：列出Active Internet connections (only servers)

-lu：列出Active Internet connections (only servers)

-lx：列出Unix domain sockets

-s：Display summary statistics for each protocol.

-p：Show the PID and name of the program to which each socket belongs.

-c #：This will cause netstat to print the selected information every # seconds continuously.

-r：Display the kernel routing tables

-I=iface , -i：Display a table of all network interfaces, or the specified iface.

-ie：similar to ifconfig