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    1 # Configuration file for dnsmasq.
    2 #
    3 # Format is one option per line, legal options are the same
    4 # as the long options legal on the command line. See
    5 # "/usr/sbin/dnsmasq --help" or "man 8 dnsmasq" for details.
    6 
    7 # Listen on this specific port instead of the standard DNS port
    8 # (53). Setting this to zero completely disables DNS function,
    9 # leaving only DHCP and/or TFTP.
   10 #port=5353
   11 
   12 # The following two options make you a better netizen, since they
   13 # tell dnsmasq to filter out queries which the public DNS cannot
   14 # answer, and which load the servers (especially the root servers)
   15 # unnecessarily. If you have a dial-on-demand link they also stop
   16 # these requests from bringing up the link unnecessarily.
   17 
   18 # Never forward plain names (without a dot or domain part)
   19 #domain-needed
   20 # Never forward addresses in the non-routed address spaces.
   21 #bogus-priv
   22 
   23 # Uncomment these to enable DNSSEC validation and caching:
   24 # (Requires dnsmasq to be built with DNSSEC option.)
   25 #conf-file=%%PREFIX%%/share/dnsmasq/trust-anchors.conf
   26 #dnssec
   27 
   28 # Replies which are not DNSSEC signed may be legitimate, because the domain
   29 # is unsigned, or may be forgeries. Setting this option tells dnsmasq to
   30 # check that an unsigned reply is OK, by finding a secure proof that a DS 
   31 # record somewhere between the root and the domain does not exist. 
   32 # The cost of setting this is that even queries in unsigned domains will need
   33 # one or more extra DNS queries to verify.
   34 #dnssec-check-unsigned
   35 
   36 # Uncomment this to filter useless windows-originated DNS requests
   37 # which can trigger dial-on-demand links needlessly.
   38 # Note that (amongst other things) this blocks all SRV requests,
   39 # so don't use it if you use eg Kerberos, SIP, XMMP or Google-talk.
   40 # This option only affects forwarding, SRV records originating for
   41 # dnsmasq (via srv-host= lines) are not suppressed by it.
   42 #filterwin2k
   43 
   44 # Change this line if you want dns to get its upstream servers from
   45 # somewhere other that /etc/resolv.conf
   46 #resolv-file=
   47 
   48 # By  default,  dnsmasq  will  send queries to any of the upstream
   49 # servers it knows about and tries to favour servers to are  known
   50 # to  be  up.  Uncommenting this forces dnsmasq to try each query
   51 # with  each  server  strictly  in  the  order  they   appear   in
   52 # /etc/resolv.conf
   53 #strict-order
   54 
   55 # If you don't want dnsmasq to read /etc/resolv.conf or any other
   56 # file, getting its servers from this file instead (see below), then
   57 # uncomment this.
   58 #no-resolv
   59 
   60 # If you don't want dnsmasq to poll /etc/resolv.conf or other resolv
   61 # files for changes and re-read them then uncomment this.
   62 #no-poll
   63 
   64 # Add other name servers here, with domain specs if they are for
   65 # non-public domains.
   66 #server=/localnet/192.168.0.1
   67 
   68 # Example of routing PTR queries to nameservers: this will send all
   69 # address->name queries for 192.168.3/24 to nameserver 10.1.2.3
   70 #server=/3.168.192.in-addr.arpa/10.1.2.3
   71 
   72 # Add local-only domains here, queries in these domains are answered
   73 # from /etc/hosts or DHCP only.
   74 #local=/localnet/
   75 
   76 # Add domains which you want to force to an IP address here.
   77 # The example below send any host in double-click.net to a local
   78 # web-server.
   79 #address=/double-click.net/127.0.0.1
   80 
   81 # --address (and --server) work with IPv6 addresses too.
   82 #address=/www.thekelleys.org.uk/fe80::20d:60ff:fe36:f83
   83 
   84 # Add the IPs of all queries to yahoo.com, google.com, and their
   85 # subdomains to the vpn and search ipsets:
   86 #ipset=/yahoo.com/google.com/vpn,search
   87 
   88 # Add the IPs of all queries to yahoo.com, google.com, and their
   89 # subdomains to netfilters sets, which is equivalent to
   90 # 'nft add element ip test vpn { ... }; nft add element ip test search { ... }'
   91 #nftset=/yahoo.com/google.com/ip#test#vpn,ip#test#search
   92 
   93 # Use netfilters sets for both IPv4 and IPv6:
   94 # This adds all addresses in *.yahoo.com to vpn4 and vpn6 for IPv4 and IPv6 addresses.
   95 #nftset=/yahoo.com/4#ip#test#vpn4
   96 #nftset=/yahoo.com/6#ip#test#vpn6
   97 
   98 # You can control how dnsmasq talks to a server: this forces
   99 # queries to 10.1.2.3 to be routed via eth1
  100 # server=10.1.2.3@eth1
  101 
  102 # and this sets the source (ie local) address used to talk to
  103 # 10.1.2.3 to 192.168.1.1 port 55 (there must be an interface with that
  104 # IP on the machine, obviously).
  105 # server=10.1.2.3@192.168.1.1#55
  106 
  107 # If you want dnsmasq to change uid and gid to something other
  108 # than the default, edit the following lines.
  109 #user=
  110 #group=
  111 
  112 # If you want dnsmasq to listen for DHCP and DNS requests only on
  113 # specified interfaces (and the loopback) give the name of the
  114 # interface (eg eth0) here.
  115 # Repeat the line for more than one interface.
  116 #interface=
  117 # Or you can specify which interface _not_ to listen on
  118 #except-interface=
  119 # Or which to listen on by address (remember to include 127.0.0.1 if
  120 # you use this.)
  121 #listen-address=
  122 # If you want dnsmasq to provide only DNS service on an interface,
  123 # configure it as shown above, and then use the following line to
  124 # disable DHCP and TFTP on it.
  125 #no-dhcp-interface=
  126 
  127 # On systems which support it, dnsmasq binds the wildcard address,
  128 # even when it is listening on only some interfaces. It then discards
  129 # requests that it shouldn't reply to. This has the advantage of
  130 # working even when interfaces come and go and change address. If you
  131 # want dnsmasq to really bind only the interfaces it is listening on,
  132 # uncomment this option. About the only time you may need this is when
  133 # running another nameserver on the same machine.
  134 #bind-interfaces
  135 
  136 # If you don't want dnsmasq to read /etc/hosts, uncomment the
  137 # following line.
  138 #no-hosts
  139 # or if you want it to read another file, as well as /etc/hosts, use
  140 # this.
  141 #addn-hosts=/etc/banner_add_hosts
  142 
  143 # Set this (and domain: see below) if you want to have a domain
  144 # automatically added to simple names in a hosts-file.
  145 #expand-hosts
  146 
  147 # Set the domain for dnsmasq. this is optional, but if it is set, it
  148 # does the following things.
  149 # 1) Allows DHCP hosts to have fully qualified domain names, as long
  150 #     as the domain part matches this setting.
  151 # 2) Sets the "domain" DHCP option thereby potentially setting the
  152 #    domain of all systems configured by DHCP
  153 # 3) Provides the domain part for "expand-hosts"
  154 #domain=thekelleys.org.uk
  155 
  156 # Set a different domain for a particular subnet
  157 #domain=wireless.thekelleys.org.uk,192.168.2.0/24
  158 
  159 # Same idea, but range rather then subnet
  160 #domain=reserved.thekelleys.org.uk,192.68.3.100,192.168.3.200
  161 
  162 # Uncomment this to enable the integrated DHCP server, you need
  163 # to supply the range of addresses available for lease and optionally
  164 # a lease time. If you have more than one network, you will need to
  165 # repeat this for each network on which you want to supply DHCP
  166 # service.
  167 #dhcp-range=192.168.0.50,192.168.0.150,12h
  168 
  169 # This is an example of a DHCP range where the netmask is given. This
  170 # is needed for networks we reach the dnsmasq DHCP server via a relay
  171 # agent. If you don't know what a DHCP relay agent is, you probably
  172 # don't need to worry about this.
  173 #dhcp-range=192.168.0.50,192.168.0.150,255.255.255.0,12h
  174 
  175 # This is an example of a DHCP range which sets a tag, so that
  176 # some DHCP options may be set only for this network.
  177 #dhcp-range=set:red,192.168.0.50,192.168.0.150
  178 
  179 # Use this DHCP range only when the tag "green" is set.
  180 #dhcp-range=tag:green,192.168.0.50,192.168.0.150,12h
  181 
  182 # Specify a subnet which can't be used for dynamic address allocation,
  183 # is available for hosts with matching --dhcp-host lines. Note that
  184 # dhcp-host declarations will be ignored unless there is a dhcp-range
  185 # of some type for the subnet in question.
  186 # In this case the netmask is implied (it comes from the network
  187 # configuration on the machine running dnsmasq) it is possible to give
  188 # an explicit netmask instead.
  189 #dhcp-range=192.168.0.0,static
  190 
  191 # Enable DHCPv6. Note that the prefix-length does not need to be specified
  192 # and defaults to 64 if missing/
  193 #dhcp-range=1234::2, 1234::500, 64, 12h
  194 
  195 # Do Router Advertisements, BUT NOT DHCP for this subnet.
  196 #dhcp-range=1234::, ra-only 
  197 
  198 # Do Router Advertisements, BUT NOT DHCP for this subnet, also try and
  199 # add names to the DNS for the IPv6 address of SLAAC-configured dual-stack 
  200 # hosts. Use the DHCPv4 lease to derive the name, network segment and 
  201 # MAC address and assume that the host will also have an
  202 # IPv6 address calculated using the SLAAC algorithm.
  203 #dhcp-range=1234::, ra-names
  204 
  205 # Do Router Advertisements, BUT NOT DHCP for this subnet.
  206 # Set the lifetime to 46 hours. (Note: minimum lifetime is 2 hours.)
  207 #dhcp-range=1234::, ra-only, 48h
  208 
  209 # Do DHCP and Router Advertisements for this subnet. Set the A bit in the RA
  210 # so that clients can use SLAAC addresses as well as DHCP ones.
  211 #dhcp-range=1234::2, 1234::500, slaac
  212 
  213 # Do Router Advertisements and stateless DHCP for this subnet. Clients will
  214 # not get addresses from DHCP, but they will get other configuration information.
  215 # They will use SLAAC for addresses.
  216 #dhcp-range=1234::, ra-stateless
  217 
  218 # Do stateless DHCP, SLAAC, and generate DNS names for SLAAC addresses
  219 # from DHCPv4 leases.
  220 #dhcp-range=1234::, ra-stateless, ra-names
  221 
  222 # Do router advertisements for all subnets where we're doing DHCPv6
  223 # Unless overridden by ra-stateless, ra-names, et al, the router 
  224 # advertisements will have the M and O bits set, so that the clients
  225 # get addresses and configuration from DHCPv6, and the A bit reset, so the 
  226 # clients don't use SLAAC addresses.
  227 #enable-ra
  228 
  229 # Supply parameters for specified hosts using DHCP. There are lots
  230 # of valid alternatives, so we will give examples of each. Note that
  231 # IP addresses DO NOT have to be in the range given above, they just
  232 # need to be on the same network. The order of the parameters in these
  233 # do not matter, it's permissible to give name, address and MAC in any
  234 # order.
  235 
  236 # Always allocate the host with Ethernet address 11:22:33:44:55:66
  237 # The IP address 192.168.0.60
  238 #dhcp-host=11:22:33:44:55:66,192.168.0.60
  239 
  240 # Always set the name of the host with hardware address
  241 # 11:22:33:44:55:66 to be "fred"
  242 #dhcp-host=11:22:33:44:55:66,fred
  243 
  244 # Always give the host with Ethernet address 11:22:33:44:55:66
  245 # the name fred and IP address 192.168.0.60 and lease time 45 minutes
  246 #dhcp-host=11:22:33:44:55:66,fred,192.168.0.60,45m
  247 
  248 # Give a host with Ethernet address 11:22:33:44:55:66 or
  249 # 12:34:56:78:90:12 the IP address 192.168.0.60. Dnsmasq will assume
  250 # that these two Ethernet interfaces will never be in use at the same
  251 # time, and give the IP address to the second, even if it is already
  252 # in use by the first. Useful for laptops with wired and wireless
  253 # addresses.
  254 #dhcp-host=11:22:33:44:55:66,12:34:56:78:90:12,192.168.0.60
  255 
  256 # Give the machine which says its name is "bert" IP address
  257 # 192.168.0.70 and an infinite lease
  258 #dhcp-host=bert,192.168.0.70,infinite
  259 
  260 # Always give the host with client identifier 01:02:02:04
  261 # the IP address 192.168.0.60
  262 #dhcp-host=id:01:02:02:04,192.168.0.60
  263 
  264 # Always give the InfiniBand interface with hardware address
  265 # 80:00:00:48:fe:80:00:00:00:00:00:00:f4:52:14:03:00:28:05:81 the
  266 # ip address 192.168.0.61. The client id is derived from the prefix
  267 # ff:00:00:00:00:00:02:00:00:02:c9:00 and the last 8 pairs of
  268 # hex digits of the hardware address.
  269 #dhcp-host=id:ff:00:00:00:00:00:02:00:00:02:c9:00:f4:52:14:03:00:28:05:81,192.168.0.61
  270 
  271 # Always give the host with client identifier "marjorie"
  272 # the IP address 192.168.0.60
  273 #dhcp-host=id:marjorie,192.168.0.60
  274 
  275 # Enable the address given for "judge" in /etc/hosts
  276 # to be given to a machine presenting the name "judge" when
  277 # it asks for a DHCP lease.
  278 #dhcp-host=judge
  279 
  280 # Never offer DHCP service to a machine whose Ethernet
  281 # address is 11:22:33:44:55:66
  282 #dhcp-host=11:22:33:44:55:66,ignore
  283 
  284 # Ignore any client-id presented by the machine with Ethernet
  285 # address 11:22:33:44:55:66. This is useful to prevent a machine
  286 # being treated differently when running under different OS's or
  287 # between PXE boot and OS boot.
  288 #dhcp-host=11:22:33:44:55:66,id:*
  289 
  290 # Send extra options which are tagged as "red" to
  291 # the machine with Ethernet address 11:22:33:44:55:66
  292 #dhcp-host=11:22:33:44:55:66,set:red
  293 
  294 # Send extra options which are tagged as "red" to
  295 # any machine with Ethernet address starting 11:22:33:
  296 #dhcp-host=11:22:33:*:*:*,set:red
  297 
  298 # Give a fixed IPv6 address and name to client with 
  299 # DUID 00:01:00:01:16:d2:83:fc:92:d4:19:e2:d8:b2
  300 # Note the MAC addresses CANNOT be used to identify DHCPv6 clients.
  301 # Note also that the [] around the IPv6 address are obligatory.
  302 #dhcp-host=id:00:01:00:01:16:d2:83:fc:92:d4:19:e2:d8:b2, fred, [1234::5] 
  303 
  304 # Ignore any clients which are not specified in dhcp-host lines
  305 # or /etc/ethers. Equivalent to ISC "deny unknown-clients".
  306 # This relies on the special "known" tag which is set when
  307 # a host is matched.
  308 #dhcp-ignore=tag:!known
  309 
  310 # Send extra options which are tagged as "red" to any machine whose
  311 # DHCP vendorclass string includes the substring "Linux"
  312 #dhcp-vendorclass=set:red,Linux
  313 
  314 # Send extra options which are tagged as "red" to any machine one
  315 # of whose DHCP userclass strings includes the substring "accounts"
  316 #dhcp-userclass=set:red,accounts
  317 
  318 # Send extra options which are tagged as "red" to any machine whose
  319 # MAC address matches the pattern.
  320 #dhcp-mac=set:red,00:60:8C:*:*:*
  321 
  322 # If this line is uncommented, dnsmasq will read /etc/ethers and act
  323 # on the ethernet-address/IP pairs found there just as if they had
  324 # been given as --dhcp-host options. Useful if you keep
  325 # MAC-address/host mappings there for other purposes.
  326 #read-ethers
  327 
  328 # Send options to hosts which ask for a DHCP lease.
  329 # See RFC 2132 for details of available options.
  330 # Common options can be given to dnsmasq by name:
  331 # run "dnsmasq --help dhcp" to get a list.
  332 # Note that all the common settings, such as netmask and
  333 # broadcast address, DNS server and default route, are given
  334 # sane defaults by dnsmasq. You very likely will not need
  335 # any dhcp-options. If you use Windows clients and Samba, there
  336 # are some options which are recommended, they are detailed at the
  337 # end of this section.
  338 
  339 # Override the default route supplied by dnsmasq, which assumes the
  340 # router is the same machine as the one running dnsmasq.
  341 #dhcp-option=3,1.2.3.4
  342 
  343 # Do the same thing, but using the option name
  344 #dhcp-option=option:router,1.2.3.4
  345 
  346 # Override the default route supplied by dnsmasq and send no default
  347 # route at all. Note that this only works for the options sent by
  348 # default (1, 3, 6, 12, 28) the same line will send a zero-length option
  349 # for all other option numbers.
  350 #dhcp-option=3
  351 
  352 # Set the NTP time server addresses to 192.168.0.4 and 10.10.0.5
  353 #dhcp-option=option:ntp-server,192.168.0.4,10.10.0.5
  354 
  355 # Send DHCPv6 option. Note [] around IPv6 addresses.
  356 #dhcp-option=option6:dns-server,[1234::77],[1234::88]
  357 
  358 # Send DHCPv6 option for namservers as the machine running 
  359 # dnsmasq and another.
  360 #dhcp-option=option6:dns-server,[::],[1234::88]
  361 
  362 # Ask client to poll for option changes every six hours. (RFC4242)
  363 #dhcp-option=option6:information-refresh-time,6h
  364 
  365 # Set option 58 client renewal time (T1). Defaults to half of the
  366 # lease time if not specified. (RFC2132)
  367 #dhcp-option=option:T1,1m
  368 
  369 # Set option 59 rebinding time (T2). Defaults to 7/8 of the
  370 # lease time if not specified. (RFC2132)
  371 #dhcp-option=option:T2,2m
  372 
  373 # Set the NTP time server address to be the same machine as
  374 # is running dnsmasq
  375 #dhcp-option=42,0.0.0.0
  376 
  377 # Set the NIS domain name to "welly"
  378 #dhcp-option=40,welly
  379 
  380 # Set the default time-to-live to 50
  381 #dhcp-option=23,50
  382 
  383 # Set the "all subnets are local" flag
  384 #dhcp-option=27,1
  385 
  386 # Send the etherboot magic flag and then etherboot options (a string).
  387 #dhcp-option=128,e4:45:74:68:00:00
  388 #dhcp-option=129,NIC=eepro100
  389 
  390 # Specify an option which will only be sent to the "red" network
  391 # (see dhcp-range for the declaration of the "red" network)
  392 # Note that the tag: part must precede the option: part.
  393 #dhcp-option = tag:red, option:ntp-server, 192.168.1.1
  394 
  395 # The following DHCP options set up dnsmasq in the same way as is specified
  396 # for the ISC dhcpcd in
  397 # http://www.samba.org/samba/ftp/docs/textdocs/DHCP-Server-Configuration.txt
  398 # adapted for a typical dnsmasq installation where the host running
  399 # dnsmasq is also the host running samba.
  400 # you may want to uncomment some or all of them if you use
  401 # Windows clients and Samba.
  402 #dhcp-option=19,0           # option ip-forwarding off
  403 #dhcp-option=44,0.0.0.0     # set netbios-over-TCP/IP nameserver(s) aka WINS server(s)
  404 #dhcp-option=45,0.0.0.0     # netbios datagram distribution server
  405 #dhcp-option=46,8           # netbios node type
  406 
  407 # Send an empty WPAD option. This may be REQUIRED to get windows 7 to behave.
  408 #dhcp-option=252,"\n"
  409 
  410 # Send RFC-3397 DNS domain search DHCP option. WARNING: Your DHCP client
  411 # probably doesn't support this......
  412 #dhcp-option=option:domain-search,eng.apple.com,marketing.apple.com
  413 
  414 # Send RFC-3442 classless static routes (note the netmask encoding)
  415 #dhcp-option=121,192.168.1.0/24,1.2.3.4,10.0.0.0/8,5.6.7.8
  416 
  417 # Send vendor-class specific options encapsulated in DHCP option 43.
  418 # The meaning of the options is defined by the vendor-class so
  419 # options are sent only when the client supplied vendor class
  420 # matches the class given here. (A substring match is OK, so "MSFT"
  421 # matches "MSFT" and "MSFT 5.0"). This example sets the
  422 # mtftp address to 0.0.0.0 for PXEClients.
  423 #dhcp-option=vendor:PXEClient,1,0.0.0.0
  424 
  425 # Send microsoft-specific option to tell windows to release the DHCP lease
  426 # when it shuts down. Note the "i" flag, to tell dnsmasq to send the
  427 # value as a four-byte integer - that's what microsoft wants. See
  428 # http://technet2.microsoft.com/WindowsServer/en/library/a70f1bb7-d2d4-49f0-96d6-4b7414ecfaae1033.mspx?mfr=true
  429 #dhcp-option=vendor:MSFT,2,1i
  430 
  431 # Send the Encapsulated-vendor-class ID needed by some configurations of
  432 # Etherboot to allow is to recognise the DHCP server.
  433 #dhcp-option=vendor:Etherboot,60,"Etherboot"
  434 
  435 # Send options to PXELinux. Note that we need to send the options even
  436 # though they don't appear in the parameter request list, so we need
  437 # to use dhcp-option-force here.
  438 # See http://syslinux.zytor.com/pxe.php#special for details.
  439 # Magic number - needed before anything else is recognised
  440 #dhcp-option-force=208,f1:00:74:7e
  441 # Configuration file name
  442 #dhcp-option-force=209,configs/common
  443 # Path prefix
  444 #dhcp-option-force=210,/tftpboot/pxelinux/files/
  445 # Reboot time. (Note 'i' to send 32-bit value)
  446 #dhcp-option-force=211,30i
  447 
  448 # Set the boot filename for netboot/PXE. You will only need
  449 # this if you want to boot machines over the network and you will need
  450 # a TFTP server; either dnsmasq's built-in TFTP server or an
  451 # external one. (See below for how to enable the TFTP server.)
  452 #dhcp-boot=pxelinux.0
  453 
  454 # The same as above, but use custom tftp-server instead machine running dnsmasq
  455 #dhcp-boot=pxelinux,server.name,192.168.1.100
  456 
  457 # Boot for iPXE. The idea is to send two different
  458 # filenames, the first loads iPXE, and the second tells iPXE what to
  459 # load. The dhcp-match sets the ipxe tag for requests from iPXE.
  460 #dhcp-boot=undionly.kpxe
  461 #dhcp-match=set:ipxe,175 # iPXE sends a 175 option.
  462 #dhcp-boot=tag:ipxe,http://boot.ipxe.org/demo/boot.php
  463 
  464 # Encapsulated options for iPXE. All the options are
  465 # encapsulated within option 175
  466 #dhcp-option=encap:175, 1, 5b         # priority code
  467 #dhcp-option=encap:175, 176, 1b       # no-proxydhcp
  468 #dhcp-option=encap:175, 177, string   # bus-id
  469 #dhcp-option=encap:175, 189, 1b       # BIOS drive code
  470 #dhcp-option=encap:175, 190, user     # iSCSI username
  471 #dhcp-option=encap:175, 191, pass     # iSCSI password
  472 
  473 # Test for the architecture of a netboot client. PXE clients are
  474 # supposed to send their architecture as option 93. (See RFC 4578)
  475 #dhcp-match=peecees, option:client-arch, 0 #x86-32
  476 #dhcp-match=itanics, option:client-arch, 2 #IA64
  477 #dhcp-match=hammers, option:client-arch, 6 #x86-64
  478 #dhcp-match=mactels, option:client-arch, 7 #EFI x86-64
  479 
  480 # Do real PXE, rather than just booting a single file, this is an
  481 # alternative to dhcp-boot.
  482 #pxe-prompt="What system shall I netboot?"
  483 # or with timeout before first available action is taken:
  484 #pxe-prompt="Press F8 for menu.", 60
  485 
  486 # Available boot services. for PXE.
  487 #pxe-service=x86PC, "Boot from local disk"
  488 
  489 # Loads <tftp-root>/pxelinux.0 from dnsmasq TFTP server.
  490 #pxe-service=x86PC, "Install Linux", pxelinux
  491 
  492 # Loads <tftp-root>/pxelinux.0 from TFTP server at 1.2.3.4.
  493 # Beware this fails on old PXE ROMS.
  494 #pxe-service=x86PC, "Install Linux", pxelinux, 1.2.3.4
  495 
  496 # Use bootserver on network, found my multicast or broadcast.
  497 #pxe-service=x86PC, "Install windows from RIS server", 1
  498 
  499 # Use bootserver at a known IP address.
  500 #pxe-service=x86PC, "Install windows from RIS server", 1, 1.2.3.4
  501 
  502 # If you have multicast-FTP available,
  503 # information for that can be passed in a similar way using options 1
  504 # to 5. See page 19 of
  505 # http://download.intel.com/design/archives/wfm/downloads/pxespec.pdf
  506 
  507 
  508 # Enable dnsmasq's built-in TFTP server
  509 #enable-tftp
  510 
  511 # Set the root directory for files available via FTP.
  512 #tftp-root=/var/ftpd
  513 
  514 # Do not abort if the tftp-root is unavailable
  515 #tftp-no-fail
  516 
  517 # Make the TFTP server more secure: with this set, only files owned by
  518 # the user dnsmasq is running as will be send over the net.
  519 #tftp-secure
  520 
  521 # This option stops dnsmasq from negotiating a larger blocksize for TFTP
  522 # transfers. It will slow things down, but may rescue some broken TFTP
  523 # clients.
  524 #tftp-no-blocksize
  525 
  526 # Set the boot file name only when the "red" tag is set.
  527 #dhcp-boot=tag:red,pxelinux.red-net
  528 
  529 # An example of dhcp-boot with an external TFTP server: the name and IP
  530 # address of the server are given after the filename.
  531 # Can fail with old PXE ROMS. Overridden by --pxe-service.
  532 #dhcp-boot=/var/ftpd/pxelinux.0,boothost,192.168.0.3
  533 
  534 # If there are multiple external tftp servers having a same name
  535 # (using /etc/hosts) then that name can be specified as the
  536 # tftp_servername (the third option to dhcp-boot) and in that
  537 # case dnsmasq resolves this name and returns the resultant IP
  538 # addresses in round robin fashion. This facility can be used to
  539 # load balance the tftp load among a set of servers.
  540 #dhcp-boot=/var/ftpd/pxelinux.0,boothost,tftp_server_name
  541 
  542 # Set the limit on DHCP leases, the default is 150
  543 #dhcp-lease-max=150
  544 
  545 # The DHCP server needs somewhere on disk to keep its lease database.
  546 # This defaults to a sane location, but if you want to change it, use
  547 # the line below.
  548 #dhcp-leasefile=/var/lib/misc/dnsmasq.leases
  549 
  550 # Set the DHCP server to authoritative mode. In this mode it will barge in
  551 # and take over the lease for any client which broadcasts on the network,
  552 # whether it has a record of the lease or not. This avoids long timeouts
  553 # when a machine wakes up on a new network. DO NOT enable this if there's
  554 # the slightest chance that you might end up accidentally configuring a DHCP
  555 # server for your campus/company accidentally. The ISC server uses
  556 # the same option, and this URL provides more information:
  557 # http://www.isc.org/files/auth.html
  558 #dhcp-authoritative
  559 
  560 # Set the DHCP server to enable DHCPv4 Rapid Commit Option per RFC 4039.
  561 # In this mode it will respond to a DHCPDISCOVER message including a Rapid Commit
  562 # option with a DHCPACK including a Rapid Commit option and fully committed address
  563 # and configuration information. This must only be enabled if either the server is 
  564 # the only server for the subnet, or multiple servers are present and they each
  565 # commit a binding for all clients.
  566 #dhcp-rapid-commit
  567 
  568 # Run an executable when a DHCP lease is created or destroyed.
  569 # The arguments sent to the script are "add" or "del",
  570 # then the MAC address, the IP address and finally the hostname
  571 # if there is one.
  572 #dhcp-script=/bin/echo
  573 
  574 # Set the cachesize here.
  575 #cache-size=150
  576 
  577 # If you want to disable negative caching, uncomment this.
  578 #no-negcache
  579 
  580 # Normally responses which come from /etc/hosts and the DHCP lease
  581 # file have Time-To-Live set as zero, which conventionally means
  582 # do not cache further. If you are happy to trade lower load on the
  583 # server for potentially stale date, you can set a time-to-live (in
  584 # seconds) here.
  585 #local-ttl=
  586 
  587 # If you want dnsmasq to detect attempts by Verisign to send queries
  588 # to unregistered .com and .net hosts to its sitefinder service and
  589 # have dnsmasq instead return the correct NXDOMAIN response, uncomment
  590 # this line. You can add similar lines to do the same for other
  591 # registries which have implemented wildcard A records.
  592 #bogus-nxdomain=64.94.110.11
  593 
  594 # If you want to fix up DNS results from upstream servers, use the
  595 # alias option. This only works for IPv4.
  596 # This alias makes a result of 1.2.3.4 appear as 5.6.7.8
  597 #alias=1.2.3.4,5.6.7.8
  598 # and this maps 1.2.3.x to 5.6.7.x
  599 #alias=1.2.3.0,5.6.7.0,255.255.255.0
  600 # and this maps 192.168.0.10->192.168.0.40 to 10.0.0.10->10.0.0.40
  601 #alias=192.168.0.10-192.168.0.40,10.0.0.0,255.255.255.0
  602 
  603 # Change these lines if you want dnsmasq to serve MX records.
  604 
  605 # Return an MX record named "maildomain.com" with target
  606 # servermachine.com and preference 50
  607 #mx-host=maildomain.com,servermachine.com,50
  608 
  609 # Set the default target for MX records created using the localmx option.
  610 #mx-target=servermachine.com
  611 
  612 # Return an MX record pointing to the mx-target for all local
  613 # machines.
  614 #localmx
  615 
  616 # Return an MX record pointing to itself for all local machines.
  617 #selfmx
  618 
  619 # Change the following lines if you want dnsmasq to serve SRV
  620 # records.  These are useful if you want to serve ldap requests for
  621 # Active Directory and other windows-originated DNS requests.
  622 # See RFC 2782.
  623 # You may add multiple srv-host lines.
  624 # The fields are <name>,<target>,<port>,<priority>,<weight>
  625 # If the domain part if missing from the name (so that is just has the
  626 # service and protocol sections) then the domain given by the domain=
  627 # config option is used. (Note that expand-hosts does not need to be
  628 # set for this to work.)
  629 
  630 # A SRV record sending LDAP for the example.com domain to
  631 # ldapserver.example.com port 389
  632 #srv-host=_ldap._tcp.example.com,ldapserver.example.com,389
  633 
  634 # A SRV record sending LDAP for the example.com domain to
  635 # ldapserver.example.com port 389 (using domain=)
  636 #domain=example.com
  637 #srv-host=_ldap._tcp,ldapserver.example.com,389
  638 
  639 # Two SRV records for LDAP, each with different priorities
  640 #srv-host=_ldap._tcp.example.com,ldapserver.example.com,389,1
  641 #srv-host=_ldap._tcp.example.com,ldapserver.example.com,389,2
  642 
  643 # A SRV record indicating that there is no LDAP server for the domain
  644 # example.com
  645 #srv-host=_ldap._tcp.example.com
  646 
  647 # The following line shows how to make dnsmasq serve an arbitrary PTR
  648 # record. This is useful for DNS-SD. (Note that the
  649 # domain-name expansion done for SRV records _does_not
  650 # occur for PTR records.)
  651 #ptr-record=_http._tcp.dns-sd-services,"New Employee Page._http._tcp.dns-sd-services"
  652 
  653 # Change the following lines to enable dnsmasq to serve TXT records.
  654 # These are used for things like SPF and zeroconf. (Note that the
  655 # domain-name expansion done for SRV records _does_not
  656 # occur for TXT records.)
  657 
  658 #Example SPF.
  659 #txt-record=example.com,"v=spf1 a -all"
  660 
  661 #Example zeroconf
  662 #txt-record=_http._tcp.example.com,name=value,paper=A4
  663 
  664 # Provide an alias for a "local" DNS name. Note that this _only_ works
  665 # for targets which are names from DHCP or /etc/hosts. Give host
  666 # "bert" another name, bertrand
  667 #cname=bertand,bert
  668 
  669 # For debugging purposes, log each DNS query as it passes through
  670 # dnsmasq.
  671 #log-queries
  672 
  673 # Log lots of extra information about DHCP transactions.
  674 #log-dhcp
  675 
  676 # Include another lot of configuration options.
  677 #conf-file=/etc/dnsmasq.more.conf
  678 #conf-dir=/etc/dnsmasq.d
  679 
  680 # Include all the files in a directory except those ending in .bak
  681 #conf-dir=/etc/dnsmasq.d,.bak
  682 
  683 # Include all files in a directory which end in .conf
  684 #conf-dir=/etc/dnsmasq.d/,*.conf
  685 
  686 # If a DHCP client claims that its name is "wpad", ignore that.
  687 # This fixes a security hole. see CERT Vulnerability VU#598349
  688 #dhcp-name-match=set:wpad-ignore,wpad
  689 #dhcp-ignore-names=tag:wpad-ignore