Linux/MIPS is a port of Linux Kernel to the MIPS architecture.
It is available under GPL with Toolchains and Emulators for no.
of processors and boards. URL: http://www.linux-mips.org/

One Day One Command
===================

netstat — Display the Network subsystem informations.

Summary:

Netstat prints information about the Linux networking subsystem, like
network connections, routing tables, interface statistics, masquerade
connections, and multicast memberships. It is very useful monitoring
tool.

Examples:

$ netstat — List all open sockets.

$ netstat -c — Run continuously and show output for every 1 sec.

$ netstat 6  — Run continuously and show output for every 6 secs.

$ netstat -r — Display the Kernel routing table.

$ netstat -i — List the interfaces table.

$ netstat -s — Display summary statistics for each protocol.

$ netstat -n — Show the host info in IP address.

$ netstat -p — Show the program to which each socket belongs.

$ netstat -l — Show only listening sockets.

$ netstat -a — Show all sockets.

$ netstat -t — Show only TCP connections.

$ netstat -u — Show only UDP connections.

To get more useful output, try this commands as a Superuser.

Read: man netstat