<div dir="ltr"><div>Well... one troubleshooting idea is to use a sniffer (ngrep, tcpdump, etc.) to see the dialogue between the web server and upsd data server (<a href="http://192.168.0.20:3493">192.168.0.20:3493</a>), to check if anything looks fishy there. Maybe some firewalls, SELinux after an update, etc. tempered up and there is no network chatter from http context to outside unless allowed (`setenforce 0` can help quickly confirm or rule out involvement of SELinux).</div><div><br></div><div>Another idea is to hack around `drivers/upsstatus.c` to add debug messages around connections (at least `fprintf(stderr...)` but if this matures to become a PR - then ideally `upsdebugx`
and some way to pass debug verbosity into the program - e.g. config file).<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Oct 10, 2023 at 9:03 PM S K via Nut-upsuser <<a href="mailto:nut-upsuser@alioth-lists.debian.net">nut-upsuser@alioth-lists.debian.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div style="font-family:Helvetica Neue,Helvetica,Arial,sans-serif;font-size:13px"><div dir="ltr">Hey the NUT sever (<a href="http://192.168.0.29/" rel="nofollow" target="_blank">http://192.168.0.29/</a>) was working fine and the URL <a href="http://192.168.0.29/cgi-bin/nut/upsstats.cgi" rel="nofollow" target="_blank">http://192.168.0.29/cgi-bin/nut/upsstats.cgi</a> did show me all the UPS slaves - but all of a sudden one particular slave is not showing up.....The one that is not showing up IP is <span>192.168.0.20 and the following command in NUT server</span></div><div dir="ltr"><span><br></span></div><div dir="ltr">upsc <a href="mailto:upshpomv@192.168.0.20" target="_blank">upshpomv@192.168.0.20</a><br></div><div dir="ltr"><span><span><br></span></span></div><div dir="ltr"><span><span>Does respond with </span></span></div><div dir="ltr"><span><span><br></span></span></div><div dir="ltr"><span><div><div>Init SSL without certificate database</div><div>battery.charge: 100</div><div>battery.charge.low: 10</div><div>battery.charge.warning: 20</div><div>battery.mfr.date: CPS</div><div>battery.runtime: 3270</div><div>battery.runtime.low: 300</div><div>battery.type: PbAcid</div><div>battery.voltage: 24.0</div><div>battery.voltage.nominal: 24</div><div>device.mfr: CPS</div><div>device.model: CP1350PFCLCD</div><div>device.serial: 000000000000</div><div>device.type: ups</div><div><a href="http://driver.name" target="_blank">driver.name</a>: usbhid-ups</div><div>driver.parameter.pollfreq: 30</div><div>driver.parameter.pollinterval: 15</div><div>driver.parameter.port: auto</div><div>driver.parameter.synchronous: no</div><div>driver.version: 2.7.4</div><div>driver.version.data: CyberPower HID 0.4</div><div>driver.version.internal: 0.41</div><div>input.transfer.high: 139</div><div>input.transfer.low: 88</div><div>input.voltage: 117.0</div><div>input.voltage.nominal: 120</div><div>output.voltage: 141.0</div><div>ups.beeper.status: enabled</div><div>ups.delay.shutdown: 20</div><div>ups.delay.start: 30</div><div>ups.load: 12</div><div>ups.mfr: CPS</div><div>ups.model: CP1350PFCLCD</div><div>ups.productid: 0501</div><div>ups.realpower.nominal: 810</div><div>ups.serial: 000000000000</div><div>ups.status: OL</div><div>ups.test.result: No test initiated</div><div>ups.timer.shutdown: -60</div><div>ups.timer.start: -60</div><div>ups.vendorid: 0764</div><div><br></div></div><div><br></div></span></div><div dir="ltr"><span><span>Hence I know the slave does respond to server but why is it now showing in the <span><a href="http://192.168.0.29/cgi-bin/nut/upsstats.cgi" style="color:rgb(25,106,212);text-decoration-line:underline;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif" rel="nofollow" target="_blank">http://192.168.0.29/cgi-bin/nut/upsstats.cgi</a><span style="color:rgb(0,0,0);font-family:"Helvetica Neue",Helvetica,Arial,sans-serif"> - BTW I have not made ANY changes to hosts.conf in my server. Any idea how to troubleshoot?</span></span></span></span></div><div dir="ltr"><br></div></div></div>_______________________________________________<br>
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