[Grml] Failure mode testing (network)

[Mark]

It can be annoying to run grml without a network.  When you unplug
ethernet and boot grml, various 'strange' things happen.  Name
resolution and network time fail.  That is normal, but the problem is
retry/timeout settings.  After a couple of minutes the daemon error
messages should stop.  Some reappear for long periods of time.

Suggestion: test grml in this 'failure' mode and adjust the
retry/timeout factors.  Sometimes, even when you have a working network,
the name resolution system is down, giving a similar result.