ISC-DHCPD (Linux)

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Installation

sudo apt-get install isc-dhcp-server 

Konfiguraration

/etc/default/isc-dhcp-server

sudo vi /etc/default/isc-dhcp-server

In dieser Zeile die Schnittstelle, wo DHCP-Anfragen beantwortet werden sollen, eintragen:

INTERFACESv4="eth0"

/etc/dhcp/dhcpd.conf

Die Datei /etc/dhcp/dhcpd.conf anpassen:

sudo vi /etc/dhcp/dhcpd.conf

Foldende Konfiguration beinhaltet nur alle einkommentierten Optionen:

# The ddns-updates-style parameter controls whether or not the server will
# attempt to do a DNS update when a lease is confirmed. We default to the
# behavior of the version 2 packages ('none', since DHCP v2 didn't
# have support for DDNS.)
ddns-update-style none;

# option definitions common to all supported networks...
option domain-name "kirner.or.at";
option domain-name-servers 8.8.8.8, 8.8.4.4;

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

# If this DHCP server is the official DHCP server for the local
# network, the authoritative directive should be uncommented.
authoritative;

subnet 10.0.0.0 netmask 255.255.255.0 {
  range 10.0.0.2 10.0.0.100;
  option routers 10.0.0.1;
}

Danach den den DHCP-Server neustarten:

sudo /etc/init.d/isc-dhcp-server restart

Replikation

https://www.tech-island.com/tutorials/dhcp-failover-linux

PXE (Preboot Execution Environment)

https://www.debian.org/releases/jessie/i386/ch04s05.html.de

Probleme

No subnet declaration for eth0

Für die betroffene Schnittstelle muss zuerst eine IP-Adresse gesetzt werden:

sudo ifconfig eth0 10.3.0.1

Links

https://wiki.ubuntuusers.de/ISC-DHCPD/

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