Alex Balashov writes:
I did not try this yet but linux-ha + DRBD seems to be a nice solution.
http://www.linux-ha.org/ http://www.drbd.org/ http://www.linux-ha.org/DRBD
drbd is ok, but i'm not convinced about linux-ha. based on what i have read, you cannot use linux ha to verify that sip proxy on your host is running, but only that the host itself is reachable. if so, it won't help you, for example, in your proxy has crashed.
-- juha