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Re: [mosquitto-dev] map IP to topic
Being a Kansas resident I'm familiar with this story and the problem of mapping. I think we got that under control. :-)

Thanks for the tip on verbose logging. Including the IP as part of the topic is also a good idea.

John

On Thu, May 4, 2017 at 11:31 AM, Ben Hardill <hardillb@xxxxxxxxx> wrote:

1. IP based geolocation is incredibly inaccurate
(http://fusion.net/how-an-internet-mapping-glitch-turned-a-random-kansas-f-1793856052)
and leads to way more problems than it ever solves

2. The only way to get this information would be to either modify
Mosquitto or to try and parse the verbose logs mode e.g.

1493915360: New connection from 127.0.0.1 on port 1889.
1493915360: New client connected from 127.0.0.1 as
mosqsub/1342-tiefighter (c1, k60).
1493915360: Sending CONNACK to mosqsub/1342-tiefighter (0, 0)
1493915360: Received SUBSCRIBE from mosqsub/1342-tiefighter
1493915360:     foo (QoS 0)
1493915360: mosqsub/1342-tiefighter 0 foo
1493915360: Sending SUBACK to mosqsub/1342-tiefighter

This shows a new connection from 127.0.0.1 with client-id
mosqsub/1342-tiefighter and subscribing to topic 'foo'

But verbose logging it likely to have a impact on performance at scale.

On 04/05/17 17:24, John Harrison wrote:
> Two things:
>
>   * We would like to map the related connected topics on a world map.
>     Once we have IPs getting Lat/Long is easy. We can already get the
>     IPs from netstat but it would be nice to know which IP is subscribed
>     to what to show the relationships between the clients.
>   * When a customer complains about connectivity issues with their
>     client it would be nice to be able to get the IP of their client
>     without having to ask them for it. This would help us troubleshoot.
>     Many of our customers are not computer savvy so even asking them for
>     their IPs can be a challenge.
>
> It might be possible to have the clients themselves return the IPs. We'd
> have to look beyond the firewall of the home routers the clients are
> behind and it would require a firmware update to all of the clients. I
> was looking for an easier way.
>
> John
>
> On Thu, May 4, 2017 at 11:09 AM, Ben Hardill <hardillb@xxxxxxxxx
> <mailto:hardillb@xxxxxxxxx>> wrote:
>
>     What problem are you actually trying to solve here?
>
>     The point to pub/sub protocols is to abstract the publishers/subscribers
>     from each other via topics.
>
>     On 04/05/17 17:01, John Harrison wrote:
>     > Hello,
>     >
>     > Is there any way I could map the IP addresses associated with the
>     > clients subscribed to a specific topic? Alternatively, is there a
>     way I
>     > could figure out the IP address associated with a particular publish?
>     >
>     > John
>     >
>     >
>     >
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