You want to assign static and dynamic IP addresses, gateways, and servers all
via DHCP.
Solution
dnsmasq does it all. There are a couple of ways to assign static IP addresses from
dnsmasq.conf. One is to use the client??™s MAC address as the client identifier, like
this:
dhcp-host=11:22:33:44:55:66,192.168.1.75
My favorite way is to set it by hostname:
dhcp-host=penguina,192.168.1.75
Make sure you do not have entries for these in /etc/hosts.
The only client configuration that??™s necessary is the hostname, and for DHCP clients
to send the hostname to the DHCP server when they request a new lease. Once you
have that, you can control everything else from the server.
Remember to run killall dnsmasq every time you change dnsmasq.conf.
There are some tricky bits to client configuration, so see Recipe 4.5 for this.
Discussion
Changes in dnsmasq.conf are easy to test. After restarting dnsmasq, try the following
commands on your Linux clients.
ifupdown stops and restarts interfaces:
# ifdown eth0
# ifup etho
Sometimes, that doesn??™t quite do the job, so you can also try:
# /etc/init.d/network restart
# /etc/init.d/networking restart
The first one is for Fedora, the second for Debian.
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