dhcp reservation, apache and virtual hosts

[tangonights at yahoo.it]

hello everybody!,

My present configuration include a dhcp and 2 hosts. one of them is a server 
apache running 2 virtual hosts and is now configured static.

gentoo linux:
192.168.1.250 -> pc-srv1.localarea.local -> dhcp + dns
dyn -> pc-dyna.localarea.local
192.168.1.252 -> pc-www1.localarea.local -> apache (www.vhost1.local, 
www.vhost2.local)

- how can I configure dhcp, in order to switch the apache host to the dhcp pool 
(even as fixed-address), considering the virtualhost zones? now my static dns 
entries are configured with CNAMEs and different zones but it is not clear to me 
how let dhcp manage them on behalf of the dns server.
- was it a viable solution, when possible, for a small LAN or was it better to 
keep all the servers static?

thanks,
Stefano




here is my present dhcpd.conf:

server-identifier	server;
ddns-updates		on;
ddns-update-style	interim;
ddns-domainname		"localarea.local.";
ddns-rev-domainname	"in-addr.arpa.";
ignore			client-updates;
include			"/etc/bind/rndc.key";

zone localarea.local. {
	primary 127.0.0.1;
	key rndc-key;
}

option			domain-name		"localarea.local.";
option			domain-name-servers	192.168.1.250, 62.94.0.41, 
62.94.0.42;
option			ip-forwarding		off;

default-lease-time	600;
max-lease-time	7200;

authoritative;
log-facility		local7;

subnet 192.168.1.0 netmask 255.255.255.0 {
	range		192.168.1.251 192.168.1.254;
	option		broadcast-address	192.168.1.255;
	option		routers			192.168.1.254;
	allow		unknown-clients;

	host pc-0252 {
		hardware ethernet	8:00:27:54:fb:e3;
		fixed-address		192.168.1.252;
	}

	zone localarea.local. {
		primary	192.168.1.250;
		key	rndc-key;
	}

	zone 1.168.192.in-addr.arpa. {
		primary	192.168.1.250;
		key	rndc-key;
	}
}