DHCP server installation

Dynamic Host Configuration Protocol.

Note:

Since Ubuntu 11.10 the DHCP3-server is available in the "isc-dhcp-server" package.

Sources

You can find more information about that topic over here:

• http://doc.ubuntu-fr.org/dhcp3-server
• https://wiki.debian.org/PXEBootInstall

Requirement

A DHCP server can provided static or dynamic address.

However, the DHCP server's IP @ must always be static!!

If you want to use a DNS, then you can even setup the DNS server first. See DNS server

Installation

DHCP server

apt-get install isc-dhcp-server

You will be asked a few questions:

• On what network interfaces should the DHCP server listen? <-- eth0
• Please configure the DHCP server as soon as the installation finishes. <-- Ok
• The version 3 DHCP server is now non-authoritative by default <-- Ok

At the end of the installation you will see errors like these: * Generating /etc/default/dhcp3-server...

• Starting DHCP server: dhcpd3 failed to start - check syslog for diagnostics.
• invoke-rc.d: initscript dhcp3-server, action "start" failed.

That's OK because we did not have the chance yet to configure our DHCP server.

Security

See Firewall rules for DHCP server

Configuration

Configuration file

The main configuration file is /etc/dhcp/dhcpd.conf

vim /etc/dhcp/dhcpd.conf

You can adjust the interface the server is listening on in /etc/dhcp/dhcp3-server INTERFACES="eth0 eth1"

Assign IP

You can assign dynamic and / or static IP, you can also you NetBoot settings.

See:

• DHCP dynamic IP assignation
• DHCP static IP assignation
• DHCP netboot configuration