[WHEREAMI] syntax for testdhcp

[Andrew McMillan]

On Thu, 2006-09-28 at 23:11 +0200, Dot Deb wrote:
> 	I could not find syntax description for some functionality I
> 	found in 'man detect.conf' example.
> 
> 	I'm referring to
> 	testdhcp    restart    dhcp
> 
> 	- what restart actually do?
> 	- in whichsituation it is expected to be useful?

We don't want to actually run DHCP multiple times, so we start / restart
the DHCP client before testing for specific IP addresses.

'*.*.*.*' is an alias for 'restart', and generally it should be done
before testing for a specific IP address.  Sometimes we might make the
DHCP server actually stop after doing the testing, in which case we
would have to start it.  A restart just does a stop / start inside, so
it's OK to use restart in that case as well.

There are a variety of DHCP clients, and not all of them support 'get a
new DHCP address right now' other than through stop / start of their
scripts.

The code for those tests is all under /usr/share/whereami/, which are
all perl or shell scripts.

Cheers,
					Andrew.

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