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dnsmasq.conf

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