Code review comment for lp:~jtv/maas/packaging-custom-dhcpd

8 -/var/lib/maas/dhcpd/*.leases* lrw,
9 +/var/lib/maas/dhcpd.leases* lrw,

I'd just leave that as it was. I do not think that the '*' hits anything other than 'dchpd', but in the dhcpv6 code, it is used to as dhcpd6.leases. So, if it were up to me, I'd just leave it as it is.

66 + chmod a+r $LFILE

Was there some explicit reason for this invention?
Neither precise nor quantal's isc-dhcp-server.conf file do this. I suspect it does nothing as the default umask for upstart jobs is probably 'a+r'.

Also, I mentioned previously:
 INTERFACES=`cat $INTERFACES_FILE`
is better done as:
 read INTERFACES < "${INTERFACES_FILE}"

It saves a fork.