On Wed, Mar 25, 2009 at 7:07 PM, mouss <mo...@ml.netoyen.net> wrote:
> I am trying to "collect" methods to setup postfix in an HA
> configuration, for "outbound" relay (no MUA involved). a use case is
> using multiple postfix boxes to relay mail out for one or more exchange
> servers. there are many possibilities. which one is
> "good/recommended/easy/blahblah"? This is somewhat off topic since the
> problem is mostly on the client (exchange or other) side rather than
> postfix. but I think this is a real need. and if I get enough infos, I
> can aggregate them and submit that as a howto/readme.
>

# apt-cache show vrrpd

Description: Virtual Router Redundancy Protocol user-space implementation
 This package provides an implementation of VRRPv2 as specified in rfc2338.
 It runs in the Linux kernel's userspace (as root).
 .
 VRRP can be used to setup high-availability services in Debian since two
 machines can use the same (virtual) IP address which is transfered upon
 failover. Some kernel features need to be enabled (please read the FAQ)

####

VRRPD use multicast packet to detect master is down. When multcast
packets from master (bigger priority) stop, slave set IP and MAC
address from master.

Its very simple and usefull.

-- 
Reinaldo de Carvalho
http://korreio.sf.net
http://python-cyrus.sf.net

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