Nut upsuser - Sep 2015 - Configure NUT slaves for D-Link 320 ShareCenter NUT master

Hello,

I have a UPS unit attached to the "D-Link 320 ShareCenter", a SOHO
2-bay NAS. I set up the UPS in "Master Mode". Unfortunately it
doesn't supply any kind of useful info in the web interface, so I had to
connect via ?nc' to port 3493 to get the proper UPS name.

I manage to to issue a successful ?upsc? command:

root at galois:~# upsc megatec at 192.168.3.6
battery.charge: 100
battery.voltage: 13.70
battery.voltage.high: 13.00
battery.voltage.low: 10.40
battery.voltage.nominal: 12.0
device.type: ups
driver.name: blazer_usb
driver.parameter.pollinterval: 2
driver.parameter.port: auto
driver.version: 2.6.4
driver.version.internal: 0.08
input.current.nominal: 2.0
input.frequency: 50.1
input.frequency.nominal: 50
input.voltage: 224.4
input.voltage.fault: 224.4
input.voltage.nominal: 230
output.voltage: 224.4
ups.beeper.status: enabled
ups.delay.shutdown: 30
ups.delay.start: 180
ups.load: 6
ups.productid: 5161
ups.status: OL
ups.type: offline / line interactive
ups.vendorid: 0665

Then I tried to setup upsmon.conf in order to monitor the UPS from my Linux host
(hostname galois). The username and password are the ones I use to access the
web interface.

grep -v "#" /etc/nut/upsmon.conf |sort
DEADTIME 15
FINALDELAY 5
HOSTSYNC 15
MINSUPPLIES 1
MONITOR megatec at 192.168.3.6 1 admin <admin-pass> slave
NOCOMMWARNTIME 300
POLLFREQ 5
POLLFREQALERT 5
POWERDOWNFLAG /etc/killpower
RBWARNTIME 43200
SHUTDOWNCMD "/sbin/shutdown -h +0"

When I start the service I get the following "ACCESS-DENIED" logs:

root at galois:~# service ups-monitor start
[ ok ] Starting NUT - power device monitor and shutdown controller: nut-client.
root at galois:~# tail -n 2 /var/log/syslog
Sep 23 19:12:03 galois upsmon[3997]: Startup successful
Sep 23 19:12:03 galois upsmon[3999]: Login on UPS [megatec at 192.168.3.6]
failed - got [ERR ACCESS-DENIED]

I didn't find any way to probe while issuing user and password.

Any ideas on how to proceed? Is there any way to find username and password? Are
there any defaults that I could try?

The manual of the NAS and their website has no information on how to setup
slaves and I?m at loss.

Thanks,

Best regards


Panagiotis (atmosx) Atmatzidis

email:	atma at convalesco.org
URL:	http://www.convalesco.org
GnuPG ID: 0x1A7BFEC5
gpg --keyserver pgp.mit.edu --recv-keys 1A7BFEC5

"Everyone thinks of changing the world, but no one thinks of changing
himself.? - Leo Tolstoy





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On Sep 24, 2015, at 2:23 AM, Panagiotis Atmatzidis <atma at
convalesco.org> wrote:
> 
> Hello,
> 
> I have a UPS unit attached to the "D-Link 320 ShareCenter", a
SOHO 2-bay NAS. I set up the UPS in "Master Mode". Unfortunately it
doesn't supply any kind of useful info in the web interface, so I had to
connect via ?nc' to port 3493 to get the proper UPS name.
"upsc -l 192.168.3.6" should also list the UPS name.
> Any ideas on how to proceed? Is there any way to find username and
password? Are there any defaults that I could try?
Is it possible to get a shell as root? The NUT user/password settings are
typically stored in /etc/nut/upsd.users

If not, is it stored in the saved configuration settings?

http://forums.dlink.com/index.php?topic=41866.msg147229#msg147229

-- 
Charles Lepple
clepple at gmail

On Sep 24, 2015, at 5:20 PM, Panagiotis Atmatzidis <atma at
convalesco.org> wrote:
> 
> However there is a ?shadow? file which has a ?root? user. The password hash
(md5) is not similar to ?admin? password which I use from the web-ui.
Definitely something to check, but it would be a coincidence if that worked.
NUT's upsd.users is designed to be separate from the system password file.
Also note that they might not have added monitoring roles to upsd.users, either.

Since NUT is distributed under the GPL, you should be able to request a copy of
the source code that D-Link used to build that version of NUT. It might have
some insights into how their integration works.

-- 
Charles Lepple
clepple at gmail