[CentOS-virt] How to pass messages from dom0 to domU??

On Wed, 22 Jul 2009, Christopher G. Stach II wrote:

----- "David Knierim" dknierim@gmail.com wrote:

...

I am adding code to my installation on dom0 (running CentOS 5.3) to monitor for hardware faults. If there is an issue, I want to propagate the status to all of the domUs (running CentOS 4.x or CentOS 5) running on the host.

2. Share a private virtual network segment with every

connected guest domain. Write a packet in dom0 and read in domU.

The addition of a new private network segment seems like overkill and needless additional fragility and complexity -- if one to one, use a remote syslog setup (viz., over UDP); if one to many (domU), use a multicast sender and listeners.

Run either on the existing network seqment shared by the domUs and dom0 already.

-- Russ herrold