"Fossies" - the Fresh Open Source Software Archive

Member "dnsmasq-2.80/dnsmasq.conf.example" (18 Oct 2018, 27381 Bytes) of package /linux/misc/dns/dnsmasq-2.80.tar.gz:


As a special service "Fossies" has tried to format the requested text file into HTML format (style: standard) with prefixed line numbers. Alternatively you can here view or download the uninterpreted source code file. See also the latest Fossies "Diffs" side-by-side code changes report for "dnsmasq.conf.example": 2.79_vs_2.80.

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