[ClusterLabs] mail server (postfix)

Dimitri Maziuk dmaziuk at bmrb.wisc.edu
Fri Jun 3 13:33:01 EDT 2016

Hi all,

quick question: is anyone running an MTA on an active-passive cluster?
Specifically, I need to do a stop - wait for drbd fs to move over -
update symlinks - then start again -- on both nodes. So that on the
active node the MTA runs with "mail gateway" postfix config in
/drbd/etc/postfix and on the passive: with "send-only" config in

Off the top of my head it looks like defining two postfix resources that
both start/stop the same postfix only at different times/on different
nodes should do the trick. Any gotchas I'm not seeing? Better ways to
accomplish it?

(I know running an MTA that way is not the Approved Way(tm), I have my
reasons for wanting to it like this.)

Dimitri Maziuk
BioMagResBank, UW-Madison -- http://www.bmrb.wisc.edu

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