Fixup network configuration

[Andrew Bradford]

Let's just show how to do a simple dhcp client configuration.

The current book doesn't talk about making /etc/network directory or the files that should be inside, like:

• interfaces
• if-up.d
• if-down.d
• if-post-down.d

Without these ifup and ifdown will complain when used.

A simple interfaces file would be like:

auto eth0
iface eth0 inet dhcp

[Andrew Bradford]

Further info, /etc/network should have something like:

drwxr-xr-x 2 andrew users 4096 Oct  1 10:16 if-down.d
drwxr-xr-x 2 andrew users 4096 Oct  1 10:16 if-post-down.d
drwxr-xr-x 2 andrew users 4096 Oct  8 15:04 if-post-up.d
drwxr-xr-x 2 andrew users 4096 Oct  8 15:04 if-pre-down.d
drwxr-xr-x 2 andrew users 4096 Oct  1 10:16 if-pre-up.d
drwxr-xr-x 2 andrew users 4096 Oct  1 10:16 if-up.d
-rw-r--r-- 1 andrew users   53 Oct  1 10:16 interfaces

[Andrew Bradford]

Also worth integrating netplug into the book for ethernet cable insert/removal detection.

​http://www.red-bean.com/~bos/

[Andrew Bradford]

I'll open netplug as another ticket. Book has been updated as of SHA: d92670cff5916fe922b89e14f47be4fc140a1865 to have a working (although not rigorously tested) udhcpc configuration for getting IP via DHCP when using 'ifup'.

Being able to do 'ifup' like things on cable insert will be what netplug provides.