daemon dhcpd: failover.c(2644):scrubbing lease for 10.225.34.224, hostname: <none>

[Christian Kratzer]

Hi,

On Thu, 19 Apr 2018, Bob Harold wrote:

> I am seeing a DHCP message that I don't remember seeing before:
>
> Apr 19 12:57:23 adonis2 daemon dhcpd: failover.c(2644):scrubbing lease for
> 10.225.34.224, hostname: <none>
> Apr 19 12:57:23 adonis2 daemon dhcpd: failover.c(2644):scrubbing lease for
> 10.225.34.230, hostname: <none>
> Apr 19 12:57:23 adonis2 daemon dhcpd: failover.c(2644):scrubbing lease for
> 10.225.35.23, hostname: <none>
>
> Has anyone else seen this?

your copy of isc dhcp has been compiled wit debugging.  There are loads of messages
that only get logged during debugging to help in seeing code flow.

> A quick Google search did not find anyone else with the same question, only
> pointers to the source code.
>
> Running: dhcpd: Internet Systems Consortium DHCP Server 4.3.6-P1
>
> Looking at the source code,
> This message was added to dhcpd in version 4.3.5
>
> I notice that this seems to be the only time in failover.c that "log_debug"
> occurs without being enclosed in:
> #if defined (DEBUG_FAILOVER_MESSAGES)
> log_debug ( ...
> #endif
>
> Is that an oversight, or intentional?
>
> I don't think I have any type of debugging enabled. But I did not compile
> from source, so I don't know what options were defined.
> The startup shows:


there is now way to tell if you have not compiled it yourself.

Could be that somebody has enabled this one line only in the build you have.

If you want a clean copy of isc dhcp compile it yourself from the source.

Greetings
Christian

-- 
Christian Kratzer                   CK Software GmbH
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