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| $ cat /etc/dnsmasq.conf
# 服务监听的网络接口地址
# 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=
# Or you can specify which interface _not_ to listen on
#except-interface=
# Or which to listen on by address (remember to include 127.0.0.1 if
# you use this.)
listen-address=192.168.1.132,127.0.0.1
# dhcp动态分配的地址范围,自动分配50-150ip段，有效期48小时
# Uncomment this to enable the integrated DHCP server, you need
# to supply the range of addresses available for lease and optionally a lease time
dhcp-range=192.168.1.50,192.168.1.150,48h
# dhcp服务的静态绑定
# dhcp-host的配置方式有很多种，这里使用的是：[client端MAC地址] + [分配的IP]+ [主机名]
# Always set the name and ipaddr of the host with hardware address
# dhcp-host=00:0C:29:5E:F2:6F,192.168.1.201
# dhcp-host=00:0C:29:5E:F2:6F,192.168.1.201,infinite 无限租期
dhcp-host=00:0C:29:5E:F2:6F,192.168.1.201,os02
dhcp-host=00:0C:29:15:63:CF,192.168.1.202,os03
# dhcp服务的其它几种绑定方式
# Always allocate the host with ethernet address 11:22:33:44:55:66
# The IP address 192.168.0.60
# 绑定网卡地址对应ip地址，用的是host的方式，类似在hosts文件写一个host name 对应一个ip，所以这个不是arp绑定，要区分。
# dhcp-host=11:22:33:44:55:66,192.168.1.60
# Always set the name of the host with hardware address
# 11:22:33:44:55:66 to be "fred"
# 绑定mac地址对应一个host name ，我个人觉得绑定mac对应ip就足够了，绑定对应名字比较少见
# dhcp-host=11:22:33:44:55:66,fred
# Always give the host with ethernet address 11:22:33:44:55:66
# the name fred and IP address 192.168.0.60 and lease time 45 minutes
# 这个是组合版，绑定某个mac对应fred名字，然后加上一个ip分配，并设置租约，这个只能说是灵活配置的参考，没啥实际意义
# dhcp-host=11:22:33:44:55:66,fred,192.168.0.60,45m
# Give a host with ethernet address 11:22:33:44:55:66 or
# 12:34:56:78:90:12 the IP address 192.168.0.60. Dnsmasq will assume
# that these two ethernet interfaces will never be in use at the same
# time, and give the IP address to the second, even if it is already
# in use by the first. Useful for laptops with wired and wireless
# addresses.
# 绑定一个ip对应多mac地址，用途场景存在于实验室和无线网络，我想只是为了让2块网卡用同一个ip这样单纯而纯洁的需求而已[不常用]
# dhcp-host=11:22:33:44:55:66,12:34:56:78:90:12,192.168.0.60
# Give the machine which says its name is "bert" IP address
# 192.168.0.70 and an infinite lease
# 绑定名字对应ip，并且给了一个新参数，无限租约
# dhcp-host=bert,192.168.0.70,infinite
# Always give the host with client identifier 01:02:02:04
# the IP address 192.168.0.60
# 给予一个特殊标识符对应ip，用途不明
# dhcp-host=id:01:02:02:04,192.168.0.60
# Always give the host with client identifier "marjorie"
# the IP address 192.168.0.60
# 跟上一条类似，只是标识符还支持普通字符字串
# dhcp-host=id:marjorie,192.168.0.60
# 通过/etc/hosts来分配对应的hostname
# Enable the address given for "judge" in /etc/hosts
# to be given to a machine presenting the name "judge" when
# it asks for a DHCP lease.
# dhcp-host=judge
# 忽略下面MAC地址的DHCP请求,不分配ip
# Never offer DHCP service to a machine whose ethernet
# address is 11:22:33:44:55:66
#dhcp-host=11:22:33:44:55:66,ignore
# If this line is uncommented, dnsmasq will read /etc/ethers and act
# on the ethernet-address/IP pairs found there just as if they had
# been given as --dhcp-host options. Useful if you keep
# MAC-address/host mappings there for other purposes.
# 使用额外的文件代替主配置文件来处理dhcp-host的匹配，这个主要为了方便管理，将所有需要用到的dhcp-host配置都放进/etc/ethers
# 设置默认租期
# Set the limit on DHCP leases, the default is 150
#dhcp-lease-max=150
# 租期保存在下面文件
# The DHCP server needs somewhere on disk to keep its lease database.
# This defaults to a sane location, but if you want to change it, use
# the line below.
#dhcp-leasefile=/var/lib/dnsmasq/dnsmasq.leases
# Set this (and domain: see below) if you want to have a domain
# automatically added to simple names in a hosts-file.
# 自动给hosts的域名增加一个简单的名字，搭配下面的domain用的[不常用]
expand-hosts
# dhcp所在的域
# Set the domain for dnsmasq. this is optional, but if it is set, it
# does the following things.
# 1) Allows DHCP hosts to have fully qualified domain names, as long
# as the domain part matches this setting.
# 2) Sets the "domain" DHCP option thereby potentially setting the
# domain of all systems configured by DHCP
# 3) Provides the domain part for "expand-hosts"
domain=hi-linux.com
# 设置默认路由出口
# dhcp-option遵循RFC 2132（Options and BOOTP Vendor Extensions),可以通过dnsmasq --help dhcp来查看具体的配置
# 很多高级的配置，如iSCSI连接配置等同样可以由RFC 2132定义的dhcp-option中给出。
# option 3为default route
# Override the default route supplied by dnsmasq, which assumes the
# router is the same machine as the one running dnsmasq.
dhcp-option=3,192.168.1.1
# 设置NTP Server.这是使用option name而非选项名来进行设置
# Set the NTP time server addresses to 192.168.0.4 and 10.10.0.5
#dhcp-option=option:ntp-server,192.168.0.4,10.10.0.5
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