[Samba] Using BIND DNS Causes Duplicate Host Entries

[ralph strebbing]

Hi All,

I've had some time to properly monitor my setup now that we've
switched to the new DHCP server that utilizes Samba's DNS through Bind
with Roland's script facilitating the DNS Updates. However, one issue
we've noticed is a considerable amount of duplication in the entries;
For example, a host (like my laptop for a perfect example) has
multiple nics, and thus has multiple IPs (Wifi, internal NIC, and Port
Extender NIC), in my case I have 2 IPs that are being sent to DNS via
the dyndns script; However there is now 2 entries in Bind for my
laptop's hostname with both IPs, even if only one interface is valid
lets say a day later (my wifi is turned off, or I'm only operating on
wifi). For some reason, the DNS entries created are not expiring after
the lease for DHCP expires causing multiple entries. I was wondering
if there is a configuration change that needs made to bind or dhcpd
that would help keep this clean? Is there maybe more tweaking needed
for Roland's script to handle those expirations in a different way?
Overall the goal here is to have DNS update at most with only active
IPs as it used to be before utilizing Samba to handle the maintenance
of the entries, since we'll have a lot of regular maintenance to keep
the DNS table cleaned up otherwise.

Below are my sanitized configs and a snippet of syslog for the DHCP server logs.
dhcpd: http://haste.thegamingcorner.net/peheqayehu.makefile
named.conf.options: http://haste.thegamingcorner.net/kixoqefike.cs
Log File: http://haste.thegamingcorner.net/jovufupoco.sql

I look forward to any insight!
Regards,
Ralph