[ale] Monitoring dhcpd.leases file?

[Alex Carver]

Could you set up a cron job every minute that MD/SHA hashes the file,
compares with the hash from a previous iteration, and if the hashes
don't match, diff the new with the old and process the diff result?
(Obviously if a difference in the hashes is found you save state to use
for the next round of comparisons.)

On 2015-01-05 11:49, James Sumners wrote:
> For those interested, parsing the data in realtime, at least with Node.js,
> is not viable. So this question is irrelevant.
> 
> On Thu, Dec 18, 2014 at 12:59 PM, James Sumners <james.sumners at gmail.com>
> wrote:
> 
>> I need to monitor ISC's dhcpd.leases file so that I can feed new leases
>> into a processor (which will log them to a database). My processor listens
>> for data on a Unix socket . So I'll want to feed the data being appended to
>> dhcpd.leases into that socket. But I also need it to still write to the
>> leases file.
>>
>> Does anyone have any suggestions on how I might go about doing this? It's
>> going to need to run non-stop.
>>
>> --
>> James Sumners
>> http://james.roomfullofmirrors.com/
>>
>> "All governments suffer a recurring problem: Power attracts pathological
>> personalities. It is not that power corrupts but that it is magnetic to the
>> corruptible. Such people have a tendency to become drunk on violence, a
>> condition to which they are quickly addicted."
>>
>> Missionaria Protectiva, Text QIV (decto)
>> CH:D 59
>>
> 
> 
> 
> 
> 
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