On 9/30/2014 11:52 AM, Valeri Galtsev wrote: > I was thinking more in line of what apcupsd does: it runs as a daemon, > talks to UPS (and puts wall message about events like power loss...), and > executes command to cleanly shut down the box if less than (whatever % of > battery juice you configured to start clean shutdown at), and will issue > command to cancel shutdown if power returned after shutdown started > (sometimes you can do it...). And I usually don't need to do any > configuration (using GUI or command line utility) of the UPS itself... so > after initial configuration of apcupsd I never get back to it. And, BTW, > if you have half of a rack behind one UPS, you can set apcupsd on one > machine to talk to UPS, and on other machines set apcupsd to talk to > apcupsd on "master" machine making all of them aware, and act as > necessary. nut and upsmon do exactly this. -- john r pierce 37N 122W somewhere on the middle of the left coast