dnsmasq | panticz.de

# cat /etc/dnsmasq.conf
dhcp-authoritative
server=192.168.1.6

log-facility=/var/log/dnsmasq.log
log-queries

local=/example.com/
domain=example.com

# cat /etc/dnsmasq.conf | grep "^dhcp-host" | awk -v OFS="\t" -F "," '{print $3, $2}' | sort  -k2 > /etc/hosts.pre
addn-hosts=/etc/hosts.pre

# DHCP
dhcp-range=192.168.1.150,192.168.1.200,255.255.255.0,1d
dhcp-option=option:router,192.168.1.6
dhcp-option=option:ntp-server,217.7.239.199

# DNS
dhcp-option=option:dns-server,1.1.1.1,8.8.8.8

# PXE
dhcp-boot=undionly.kpxe,srv,192.168.1.9
dhcp-boot=net:sip,http://srv/snom3x0/snom3x0.xml,srv,192.168.1.9
dhcp-boot=net:ts,ltsp/amd64/pxelinux.0,ts,192.168.1.159

# Clients
dhcp-host=00:00:00:00:00:03,www,192.168.1.3
dhcp-host=00:00:00:00:01:70,mx,192.168.1.170

# LTSP
dhcp-host=00:01:02:03:04:11,workstation1,192.168.1.79,net:ts
dhcp-host=00:01:02:03:04:22,workstation2,192.168.1.80,net:ts

# SIP
dhcp-host=00:11:22:33:44:01,juri.sip,192.168.1.210,net:sip

# CNAME
cname=www.example.com,www
cname=mail,mx

#dhcp-host=00:00:00:00:00:03,host1:specialhosts,192.168.1.3
#dhcp-option=tag:specialhosts,option:dns-server,192.168.1.6

expand-hosts
#no-poll
domain-needed
#bogus-priv
#no-resolv

# Gateway
#dhcp-option=tag:gateway1,3,192.168.1.6
#dhcp-option=tag:gateway2,3,192.168.1.253
#dhcp-host=set:gateway1,00:1A:4D:49:80:C2,192.168.1.111,12h
#dhcp-host=set:gateway2,00:1A:4B:6F:C6:65,192.168.1.121,12h

# test
# redirect all ?
address=/#/192.168.2.1

dhcp-range=interface:eth0,192.168.1.128,192.168.1.254,24h
dhcp-range=interface:eth1,192.168.2.128,192.168.2.254,24h

interface=eth1
dhcp-authoritative
domain-needed
bogus-priv
#no-resolv
#server=10.0.254.254@ens10
server=192.168.33.33
local=/dev/
domain=dev
#dhcp-range=10.0.0.0,static
dhcp-range=192.168.33.100,192.168.33.200,255.255.255.0,1d

dhcp-option=option:ntp-server,192.168.33.33
dhcp-option=option:router,192.168.33.33

dhcp-option=option:classless-static-route,0.0.0.0/0,10.0.0.1,172.16.0.0/21,10.0.0.253

#dhcp-boot=pxelinux.0
dhcp-boot=undionly.kpxe
enable-tftp
tftp-root=/srv/tftp/fai

log-dhcp
log-queries
log-facility=/var/log/dnsmasq.log

Options
ttps://blog.abysm.org/2020/06/human-readable-dhcp-options-for-dnsmasq/

dnsmasq --help dhcp
http://oss.segetech.com/intra/srv/dnsmasq.conf

dhcp-option=tag:d1-mgmt-dev,option:domain-name,dev.example.com

# testme
dhcp-host=11:22:33:44:55:66,ignore
dhcp-script=/var/lib/dnsmasq/dhcp-script.sh

addn-hosts=/tag:mgmt-dev,etc/dnsmasq.hosts

DHCP by circuitid

# Switch Mac
dhcp-remoteid=set:aurora-1,00:06:00:15:62:a7:64:00

# Port Vlan and ID
dhcp-circuitid=set:vlan-500-port-1,00:04:01:f4:00:00
dhcp-circuitid=set:vlan-500-port-2,00:04:01:f4:00:01
dhcp-circuitid=set:vlan-500-port-3,00:04:01:f4:00:02
dhcp-circuitid=set:vlan-500-port-4,00:04:01:f4:00:03
dhcp-circuitid=set:vlan-500-port-5,00:04:01:f4:00:04

dhcp-option=option:router,192.10.101.1
dhcp-option=option:dns-server,192.10.96.192,192.10.96.193

#Statics
dhcp-range=tag:aurora-1,tag:vlan-500-port-1,set:locked,192.10.101.242,192.10.101.242,255.255.255.0,192.10.101.255,10m
dhcp-range=tag:aurora-1,tag:vlan-500-port-3,set:locked,192.10.101.243,192.10.101.243,255.255.255.0,192.10.101.255,10m
dhcp-range=tag:aurora-1,tag:vlan-500-port-5,set:locked,192.10.101.245,192.10.101.245,255.255.255.0,192.10.101.255,10m

#Default
dhcp-range=tag:!locked,192.10.101.230,192.10.101.239,255.255.255.0,10m

## v2 ############################

dhcp-circuitid=set:dc1-e2-rack10,01:03:72:31:30 # String configured on Relay: r10
dhcp-circuitid=set:dc1-e2-rack11,01:03:72:31:31 # String configured on Relay: r11
dhcp-circuitid=set:dc1-e2-rack12,01:03:72:31:32 # String configured on Relay: r12

# Rack specific IPMI ranges, based on tags
dhcp-range=tag:dc1-e2-rack12,set:dc1-ipmi-dev,10.32.99.100,10.32.99.200,255.255.240.0,72h
dhcp-range=tag:dc1-e2-rack11,set:dc1-ipmi-dev,10.32.98.100,10.32.98.200,255.255.240.0,72h
dhcp-range=tag:dc1-e2-rack10,set:dc1-ipmi-dev,10.32.97.100,10.32.97.200,255.255.240.0,72h

# Options for dc1 dev-ipmi ranges
dhcp-option=tag:dc1-ipmi-dev,option:classless-static-route,0.0.0.0/0,10.32.96.1,10.32.0.0/16,10.32.96.1
dhcp-option=tag:dc1-ipmi-dev,option:domain-name,ipmi.example.com


# Rack specific MGMT ranges, based on tags
dhcp-range=tag:dc1-e2-rack12,set:dc1-mgmt-dev,10.33.99.100,10.33.99.200,255.255.240.0,72h
dhcp-range=tag:dc1-e2-rack11,set:dc1-mgmt-dev,10.33.98.100,10.33.98.200,255.255.240.0,72h
dhcp-range=tag:dc1-e2-rack10,set:dc1-mgmt-dev,10.33.97.100,10.33.97.200,255.255.240.0,72h

# Options for all dev-mgmt ranges
dhcp-option=tag:dc1-mgmt-dev,option:classless-static-route,0.0.0.0/0,10.33.96.1,10.33.0.0/16,10.33.96.1
dhcp-option=tag:dc1-mgmt-dev,option:domain-name,example.com

Links
http://www.thekelleys.org.uk/dnsmasq/docs/dnsmasq-man.html
https://wiki.archlinux.org/index.php/dnsmasq
https://www.g-loaded.eu/2010/09/18/caching-nameserver-using-dnsmasq/
https://oss.segetech.com/intra/srv/dnsmasq.conf
https://blog.zumbi.com.ar/using-dnsmasq-and-unbound-at-the-same-time.html