[TriLUG] Learning Linux -- and Netstat

Bill Farrow bill at arrowsreach.com
Wed Sep 11 15:26:27 EDT 2013


On Wed, Sep 11, 2013 at 2:48 PM, James Jones <jc.jones at tuftux.com> wrote:
> I need to do a lot of reading on sockets especially with what appears
> to be around 400.

As John pointed out, the Unix sockets are for internal communication
between programs running on your system.

The one you cited in your first email was "dbus" which is used by
programs to listen for events and call functions on other programs.
For example, when you plug a network cable into a laptop, a message is
sent over dbus to let all interested programs know. Your network
status icon on your desktop receives this message and changes the icon
graphics accordingly.

A typical desktop has a lot of programs and services running. On my
embedded system at work netstat shows only 5 unix sockets open :-)


Bill


More information about the TriLUG mailing list