Hi,

Thank you. The (de)serialize functions can push a host to redis or fetch
it. It's a good idea to use it.
I want to load every host stored in redis when ntopng starts. How would I
do it ? How can I manually add a host to a network interface ?
Moreover, the interface name or ID is not stored in the host in redis,
right ? So It is impossible to load a given host from the interface it has
been seen before.

Thanks you in advance,

Mathieu

2016-03-23 14:34 GMT+01:00 Simone Mainardi <[email protected]>:

> Mathieu,
>
> I think that for your purposes you should look and edit the Host functions:
>
> - serialize :
> https://github.com/ntop/ntopng/blob/0c0b671e0f218cbee369bd5567f1a50d63e92a3d/src/Host.cpp#L862
> - deserialize :
> https://github.com/ntop/ntopng/blob/0c0b671e0f218cbee369bd5567f1a50d63e92a3d/src/Host.cpp#L953
>
> They handle how host data is written to and read from redis.
>
>
> Simone
>
> On Wed, Mar 23, 2016 at 10:29 AM, Mathieu Fourcroy <
> [email protected]> wrote:
>
>> Thank you for your answer Simone.
>> When I start ntopng it does not automatically load previous hosts if
>> these hosts are idle (do not send or receive packets). It does load some
>> statistics when the host starts begin active but the "first seen" value is
>> reseted.
>> Is there a way to load every local hosts even if they are not living on
>> the network anymore and load the "first_seen" value also.
>>
>> Thank you very much for your answers I really appreciate it.
>> Mathieu
>>
>> 2016-03-23 10:23 GMT+01:00 Simone Mainardi <[email protected]>:
>>
>>> Mathieu, redis host persistency is enabled by default for local and
>>> system hosts. They are dumped on exit and loaded back on startup.
>>>
>>> Simone
>>>
>>> On Wed, Mar 23, 2016 at 10:10 AM, Mathieu Fourcroy <
>>> [email protected]> wrote:
>>>
>>>> Hello,
>>>> Can you tell me if there is a way to save host information (via redis
>>>> or mysql) and load it automatically when starting ntopng ?
>>>>
>>>> Best reguards,
>>>> Mathieu
>>>>
>>>> 2016-03-22 9:59 GMT+01:00 Simone Mainardi <[email protected]>:
>>>>
>>>>> Mathieu,
>>>>>
>>>>> Please, feel free to contribute the additional page on github, we
>>>>> would like to consider integrating it in our code.
>>>>>
>>>>> To answer your question, the present data structure only allows to
>>>>> keep first and last seen overall.
>>>>>
>>>>> Simone
>>>>>
>>>>> On Mon, Mar 21, 2016 at 10:00 PM, Mathieu Fourcroy <
>>>>> [email protected]> wrote:
>>>>>
>>>>>> The first method works very well. I am trying to add a page to the
>>>>>> host_details.lua which would display an activity map or a timeline 
>>>>>> showing
>>>>>> the periods where the host was using an IP address. It would look 
>>>>>> something
>>>>>> like:
>>>>>>
>>>>>> IP1 |xxxxxxxxxx        xxxxxxxxx   |
>>>>>> IP2 |              xxxxxx                |
>>>>>> IP3 |                                    xx|
>>>>>>
>>>>>> It's easy to get the first seen and last seen time for a given host
>>>>>> (IP address) but do you know a way to get periods of time
>>>>>> Like if the (sticky) host is active from 5am to 10am, then idle until
>>>>>> 1pm and active again until now: do you know a way to get something like:
>>>>>> [{"start": 5am, "end": 10am}, {"start": 10am, "end": 1pm}, {"start":
>>>>>> 1pm, "end": null}]
>>>>>>
>>>>>> I don't know if it is possible with the actual host data structure
>>>>>> but please let me know if it is possible.
>>>>>>
>>>>>> Thanks in advance,
>>>>>> Mathieu
>>>>>>
>>>>>>
>>>>>> 2016-03-16 18:05 GMT+01:00 Simone Mainardi <[email protected]>:
>>>>>>
>>>>>>> Mathieu, there are at least two ways you can accomplish this:
>>>>>>>
>>>>>>> 1. make local hosts sticky and then navigate to
>>>>>>> page hosts_stats.lua?mac=DE:AD:BE:EF:BE:EF, where DE:AD:BE:EF:BE:EF  is 
>>>>>>> the
>>>>>>> MAC address of interest. Since local hosts will not be purged, you will
>>>>>>> find here the whole list of IP addresses seen with the given MAC
>>>>>>> 2. export flows to Elastic Search, there will be two fields named
>>>>>>> IN_SRC_MAC and OUT_DST_MAC that you can search against a MAC of 
>>>>>>> interest to
>>>>>>> see the list of IP addresses that have used it.
>>>>>>>
>>>>>>> Simone
>>>>>>>
>>>>>>> On Wed, Mar 16, 2016 at 4:08 PM, Mathieu Fourcroy <
>>>>>>> [email protected]> wrote:
>>>>>>>
>>>>>>>> Hi,
>>>>>>>>
>>>>>>>> I'm new to ntopng and I wonder if it is possible for a given local
>>>>>>>> host (MAC address) to obtain or display a list of its successive IP
>>>>>>>> addresses on the network.
>>>>>>>> If a network card is using a first IP address on the network then
>>>>>>>> it stops using this one and use a second, different, IP address on the
>>>>>>>> network. Will ntopng distinguish two hosts with same MAC and differen 
>>>>>>>> IP or
>>>>>>>> will it just overwrite the first IP address for the single host ?
>>>>>>>>
>>>>>>>> Thanks in advance,
>>>>>>>> Mathieu
>>>>>>>>
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>>>>>>>
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