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<div dir="auto">I'm hoping that someone can shed some light on this… I have a Synology NAS (DS416) that has a feature where you can enable a “Network UPS Server” which is a NUT server. I have been trying to get the Synology to shut down three Ubuntu 20.04 servers that I have. While it does work when I test it out manually, sometimes when I am away and the power goes out briefly, the servers shut down when the power has been out for like five seconds (or less sometimes). When I come home and turn on the servers, they boot up but then immediately shut down again. This happens until I restart the Synology; then they will boot up and stay up. I‘d like them to stay up a little longer than that. Ideally, I’d like them to stay up until battery is low, then shut down, then all come back on when power is restored. <br />
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This is what I have done so far: I have enabled "Enable Network UPS server" on the Synology and have installed NUT on each of my servers running Ubuntu 20.04. I have added the appropriate IPs to the Permitted DiskStation Devices” list. I have also tried setting it on the Synology to shut down when battery is low and after a specified amount of time (20 minutes). Either way, the servers will shut down after like 5 seconds or less. I have edited upsmon.conf and added my MONITOR line and setup systemctl so that the nut-client service starts automatically at boot. I have no made any other changes to the file; the rest is still set to defaults.<br />
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So I'm not sure where exactly the problem is; if it's the Synology or NUT on Ubuntu. Strange thing is, when I manually test by shutting off the power briefly (or for a few seconds, or a few minutes - I've tried everything;) every time I do a test, everything works perfect and they will shut down when they are supposed to. Seems to only happen when there is a passing storm that knocks the power out for a few seconds.<br />
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Also, this is what I found in the syslog on one of the machines:<br />
Jul 31 18:33:29 plex upsmon[970]: UPS ups@192.168.1.70 on battery<br />
Jul 31 18:33:34 plex upsmon[970]: UPS ups@192.168.1.70 on line power<br />
Jul 31 18:34:04 plex upsmon[970]: Executing automatic power-fail shutdown<br />
Jul 31 18:34:04 plex upsmon[970]: Auto logout and shutdown proceeding<br />
Jul 31 18:34:09 plex systemd[1]: nut-monitor.service: Succeeded.<br />
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If I’m not mistaken, it is shutting down after power came back on line….?<br />
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Any help would be greatly appreciated!<br />
<br />
Details: Nut version 2.7.4-11ubuntu4, Ubuntu 20.04, NUT installed from package, Synology DS416, UPS is APC Back-UPS NS 650M1</div>
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<p style="margin: 0px; font-stretch: normal; line-height: normal; font-family: "Helvetica Neue"; color: rgb(51, 51, 51);"><span style="color: #222222"><b>Todd Benivegna</b></span> <span style="color: #222222">//</span> <a href="mailto:todd@benivegna.com">todd@benivegna.com</a></p>
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