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2.3 KiB
2.3 KiB
set up dnsmasq
dnsmasq provides DHCP and DNS services for the network
install & config dnsmasq
m install with:
apt install dnsmasq
stop service so it doesn't do anything until it's configured:
service dnsmasq stop
config
config file is in /etc/dnsmasq.conf. The following settings need to be set:
# Add local-only domains here, queries in these domains are answered
# from /etc/hosts or DHCP only.
local=/mar.alemor.org/
# If you want dnsmasq to listen for DHCP and DNS requests only on
# specified interfaces (and the loopback) give the name of the
# interface (eg eth0) here.
# Repeat the line for more than one interface.
interface=lan0
# Set a domain for a particular subnet
domain=mar.alemor.org,192.168.80.0/24
# Uncomment this to enable the integrated DHCP server, you need
# to supply the range of addresses available for lease and optionally
# a lease time. If you have more than one network, you will need to
# repeat this for each network on which you want to supply DHCP
# service.
dhcp-range=192.168.82.50,192.168.82.150,12h
# Set the limit on DHCP leases, the default is 150
dhcp-lease-max=150
# Set the DHCP server to authoritative mode. In this mode it will barge in
# and take over the lease for any client which broadcasts on the network,
# whether it has a record of the lease or not. This avoids long timeouts
# when a machine wakes up on a new network. DO NOT enable this if there's
# the slightest chance that you might end up accidentally configuring a DHCP
# server for your campus/company accidentally. The ISC server uses
# the same option, and this URL provides more information:
# http://www.isc.org/files/auth.html
dhcp-authoritative
# If you want to disable negative caching, uncomment this.
no-negcache
after you've set the config you want, reload with service dnsmasq restart
- hosts in
/etc/hostsand MAC addresses in/etc/ethers
make interface static
set 192.168.82.1 as the hostname for medusa.mar.alemor.org
the LAN interface won't be getting DHCP since it is the DHCP, so it has to be defined as static. In /etc/network/interfaces, add the block:
# LAN interface needs to be manually defined
# 21-bit netmask is 255.255.248.0 in dot notation
auto lan0
iface lan0 inet static
address 192.168.82.1/21
then take the interface down and bring it back up with:
ifdown lan0
ifup lan0