Nut upsuser - Aug 2016 - Any good SNMP tutorial?

Hello, I am looking for good instructions on how to configure NUT to receive
SNMP Trap signals and how to shutdown a server. My setup is:

NUT: version 2.7.1-1ubuntu1, from package
OS: Ubuntu 14.04.5 LTS
UPS: Tripp Lite SMART3000RM2U


The only thing I was able to understand from the documentation is to an entry in
ups.conf:

[tripplite-pa3]
        driver = snmp-ups
        port = tripplite-pa3.domain.com
        community = public
        mibs = ietf

Then start upsd:

root at dell1850:/etc/nut# upsd
Network UPS Tools upsd 2.7.1
fopen /var/run/nut/upsd.pid: No such file or directory
listening on 127.0.0.1 port 3493
listening on ::1 port 3493
Connected to UPS [tripplite-pa3]: snmp-ups-tripplite-pa3

And that is as far as I got. How does one receive a low battery warning and
shutdown the server?

Brian H

On Wed, 17 Aug 2016, Brian Hilmers wrote:
> Hello, I am looking for good instructions on how to configure NUT to
receive SNMP Trap signals and how to shutdown a server. My setup is:
>
> NUT: version 2.7.1-1ubuntu1, from package
> OS: Ubuntu 14.04.5 LTS
> UPS: Tripp Lite SMART3000RM2U
>
>
> The only thing I was able to understand from the documentation is to an
entry in ups.conf:
>
> [tripplite-pa3]
>        driver = snmp-ups
>        port = tripplite-pa3.domain.com
>        community = public
>        mibs = ietf
>
> Then start upsd:
>
> root at dell1850:/etc/nut# upsd
> Network UPS Tools upsd 2.7.1
> fopen /var/run/nut/upsd.pid: No such file or directory
> listening on 127.0.0.1 port 3493
> listening on ::1 port 3493
> Connected to UPS [tripplite-pa3]: snmp-ups-tripplite-pa3
>
> And that is as far as I got. How does one receive a low battery warning and
shutdown the server?
Have you seen the User Manual "6.3. Configuring automatic shutdowns for 
low battery events"? 
http://networkupstools.org/docs/user-manual.chunked/ar01s06.html#UPS_shutdown 
You need to have upsmon configured and running.

Have you seen "Configuring NUT for the Eaton 3S UPS on Ubuntu Linux" 
https://srackham.wordpress.com/2013/02/27/configuring-nut-for-the-eaton-3s-ups-on-ubuntu-linux/
with an example of upsmon configuration?

Roger

> On Aug 17, 2016, at 5:01 PM, Brian Hilmers <bhilmers at scripps.edu>
wrote:
> 
> ... how to configure NUT to receive SNMP Trap signals
I don't have any SNMP equipment to test against, but I think the snmp-ups
driver simply polls - no traps needed. (Polling has the advantage of detecting
when the network link has problems.)