[Commotion-dev] collectd number of users

[Sean McIntyre]

My understanding is that the following lines in /etc/collectd.conf
should be enough. It will keep track of data going through the output
chain and forward chain.

LoadPlugin iptables
<Plugin "iptables">
  Chain "filter" "FORWARD"
  Chain6 "filter" "OUTPUT"
</Plugin>

The symptom is I'm not getting any iptables RRD data / folder in the
server's /var/lib/collectd/rrd/commotion-230179203 folder.

Sean

On Wed, Nov 21, 2012 at 10:49 PM, Sean McIntyre <boxysean at gmail.com> wrote:
> Cool, ty Ben and Seamus. Do you guys have working /etc/collectd.conf
> with collectd-mod-iptables? I'm researching it, but seems like I'm
> going to have to get a bit more up-to-speed with iptables and the mod
> to get something working.
>
> Sean
>
> On Wed, Nov 21, 2012 at 9:45 AM, Seamus Tuohy <s2e at opentechinstitute.org> wrote:
>> Yea, from my search Ben is right on track. No better way with CollectD.
>>
>> s2e
>>
>>
>> On 11/21/2012 09:25 AM, Benjamin Chodoroff wrote:
>>> On Tue 20 Nov 2012 10:00:30 PM EST, Sean McIntyre wrote:
>>>> Hey list,
>>>>
>>>> I'm trying to figure out what collectd mod to use to keep track of the
>>>> number of users on a node. I think some of you have talked in other
>>>> channels saying that keeping track of DHCP leases is the way to go. It
>>>> also sounds like one of you (Seamus?) has done this before.
>>>>
>>>> I installed the iptables mod from pre-built packages here
>>>> <http://downloads.openwrt.org/snapshots/trunk/ar71xx/packages/> but
>>>> for some reason am not getting any data out of it. Here's the relevant
>>>> config lines in /etc/collectd.conf.
>>>>
>>>> LoadPlugin iptables
>>>> <Plugin "iptables">
>>>>   Chain "filter" "FORWARD"
>>>>   Chain6 "filter" "OUTPUT"
>>>> </Plugin>
>>>>
>>>> Let me know if you see anything / if you've made this work before. I'm
>>>> kinda wondering if a special collectd mod needs to be made for this
>>>> purpose...? (hope not!)
>>>>
>>>> Sean
>>>
>>> Just spent a minute looking around for a dhcp lease count collectd
>>> plugin, but didn't find one. Iptables is one way of doing it, or
>>> another option is to write a shell script collectd plugin using
>>> https://collectd.org/wiki/index.php/Plugin:Exec that runs "cat
>>> /var/dhcpd.leases | wc -l"
>>>
>>> iptables will give a more accurate picture of instantaneous # of users,
>>> i think.
>>>
>>> -b
>>>
>>>
>>>
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>>
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