Re: Simple authentication of syslog messages for embedded network devices

[Darren Reed]

In some email I received from Balazs Scheidler, sie wrote:
> > > I don't think we need two md5 hash for each log line (chain= and md5=) We
> > > could simply include the chain value implicitly in the value of md5. Here's
> > > the formula to use:
> > [...]
> > 
> > It is necessary otherwise it is possible to end up with a resulting log
> > file that cannot be put back together.  As far as the sending host is
> > concerned, everything is in sequence, but who knows what order they are
> > in on the receiving host ?
> 
> You are right if using UDP transport. Using a TCP channel may help this
> problem though.

This only guarantees ordered delivery to the host, not storage, processing
or even relaying onto others.

Darren