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