[Dnsmasq-discuss] prevent dnsmasq from releasing IPs

[Simon Kelley]

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On 26/01/16 07:25, Stefan Priebe - Profihost AG wrote:
> 
> 
> Am 25.01.2016 um 23:20 schrieb Simon Kelley:
>> Not directly. If you just want a record of leases after they've
>> been released, then you can save information by using the
>> dhcp-script function. If you want to stop re-use of the
>> addresses, then the best you can easily do is to allocate static
>> addresses to clients. That will stop the addresses being
>> allocated to other clients, even when not leased.
> 
> I had the hope that dnsmasq evaluate the return code of the
> dhcp-script and i can use exit 1 if i do not want to delete the
> IP.

That's an interesting thought. The dhcp-script gets run
asynchronously, so it wouldn't be trivial to implement, but it may be
possible.
> 
> Is it possible that i readd the IP to the leases file in the 
> dhcp-script? Or does dnsmasq remove the entry after processing the 
> dhcp-script?

That wouldn't work at all. Dnsmasq only reads the contents of the
lease file at startup. The rest of the time it's working from an
internal copy. If you altered the file, your changes would just be
overwritten and ignored.


Cheers,

Simon.

> 
> Stefan
>> 
>> 
>> Cheers,
>> 
>> Simon.
>> 
>> On 25/01/16 16:42, Stefan Priebe - Profihost AG wrote:
>>> Hi,
>> 
>>> is there any way to keep IPs in the dnsmasq DB even the host
>>> sends a release?
>> 
>>> I want to keep those entry at least for 2 more days.
>> 
>>> Greets, Stefan
>> 
>>> _______________________________________________
>>> Dnsmasq-discuss mailing list
>>> Dnsmasq-discuss at lists.thekelleys.org.uk 
>>> http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss
>>
>>
>>
>>> 
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>> 
> 
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