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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.  
  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 alogrithm.
  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 overriden 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 host with client identifier "marjorie"
  255. # the IP address 192.168.0.60
  256. #dhcp-host=id:marjorie,192.168.0.60
  257.  
  258. # Enable the address given for "judge" in /etc/hosts
  259. # to be given to a machine presenting the name "judge" when
  260. # it asks for a DHCP lease.
  261. #dhcp-host=judge
  262.  
  263. # Never offer DHCP service to a machine whose Ethernet
  264. # address is 11:22:33:44:55:66
  265. #dhcp-host=11:22:33:44:55:66,ignore
  266.  
  267. # Ignore any client-id presented by the machine with Ethernet
  268. # address 11:22:33:44:55:66. This is useful to prevent a machine
  269. # being treated differently when running under different OS's or
  270. # between PXE boot and OS boot.
  271. #dhcp-host=11:22:33:44:55:66,id:*
  272.  
  273. # Send extra options which are tagged as "red" to
  274. # the machine with Ethernet address 11:22:33:44:55:66
  275. #dhcp-host=11:22:33:44:55:66,set:red
  276.  
  277. # Send extra options which are tagged as "red" to
  278. # any machine with Ethernet address starting 11:22:33:
  279. #dhcp-host=11:22:33:*:*:*,set:red
  280.  
  281. # Give a fixed IPv6 address and name to client with
  282. # DUID 00:01:00:01:16:d2:83:fc:92:d4:19:e2:d8:b2
  283. # Note the MAC addresses CANNOT be used to identify DHCPv6 clients.
  284. # Note also the they [] around the IPv6 address are obilgatory.
  285. #dhcp-host=id:00:01:00:01:16:d2:83:fc:92:d4:19:e2:d8:b2, fred, [1234::5]
  286.  
  287. # Ignore any clients which are not specified in dhcp-host lines
  288. # or /etc/ethers. Equivalent to ISC "deny unknown-clients".
  289. # This relies on the special "known" tag which is set when
  290. # a host is matched.
  291. #dhcp-ignore=tag:!known
  292.  
  293. # Send extra options which are tagged as "red" to any machine whose
  294. # DHCP vendorclass string includes the substring "Linux"
  295. #dhcp-vendorclass=set:red,Linux
  296.  
  297. # Send extra options which are tagged as "red" to any machine one
  298. # of whose DHCP userclass strings includes the substring "accounts"
  299. #dhcp-userclass=set:red,accounts
  300.  
  301. # Send extra options which are tagged as "red" to any machine whose
  302. # MAC address matches the pattern.
  303. #dhcp-mac=set:red,00:60:8C:*:*:*
  304.  
  305. # If this line is uncommented, dnsmasq will read /etc/ethers and act
  306. # on the ethernet-address/IP pairs found there just as if they had
  307. # been given as --dhcp-host options. Useful if you keep
  308. # MAC-address/host mappings there for other purposes.
  309. #read-ethers
  310.  
  311. # Send options to hosts which ask for a DHCP lease.
  312. # See RFC 2132 for details of available options.
  313. # Common options can be given to dnsmasq by name:
  314. # run "dnsmasq --help dhcp" to get a list.
  315. # Note that all the common settings, such as netmask and
  316. # broadcast address, DNS server and default route, are given
  317. # sane defaults by dnsmasq. You very likely will not need
  318. # any dhcp-options. If you use Windows clients and Samba, there
  319. # are some options which are recommended, they are detailed at the
  320. # end of this section.
  321.  
  322. # Override the default route supplied by dnsmasq, which assumes the
  323. # router is the same machine as the one running dnsmasq.
  324. #dhcp-option=3,1.2.3.4
  325.  
  326. # Do the same thing, but using the option name
  327. #dhcp-option=option:router,1.2.3.4
  328.  
  329. # Override the default route supplied by dnsmasq and send no default
  330. # route at all. Note that this only works for the options sent by
  331. # default (1, 3, 6, 12, 28) the same line will send a zero-length option
  332. # for all other option numbers.
  333. #dhcp-option=3
  334.  
  335. # Set the NTP time server addresses to 192.168.0.4 and 10.10.0.5
  336. #dhcp-option=option:ntp-server,192.168.0.4,10.10.0.5
  337.  
  338. # Send DHCPv6 option. Note [] around IPv6 addresses.
  339. #dhcp-option=option6:dns-server,[1234::77],[1234::88]
  340.  
  341. # Send DHCPv6 option for namservers as the machine running
  342. # dnsmasq and another.
  343. #dhcp-option=option6:dns-server,[::],[1234::88]
  344.  
  345. # Ask client to poll for option changes every six hours. (RFC4242)
  346. #dhcp-option=option6:information-refresh-time,6h
  347.  
  348. # Set the NTP time server address to be the same machine as
  349. # is running dnsmasq
  350. #dhcp-option=42,0.0.0.0
  351.  
  352. # Set the NIS domain name to "welly"
  353. #dhcp-option=40,welly
  354.  
  355. # Set the default time-to-live to 50
  356. #dhcp-option=23,50
  357.  
  358. # Set the "all subnets are local" flag
  359. #dhcp-option=27,1
  360.  
  361. # Send the etherboot magic flag and then etherboot options (a string).
  362. #dhcp-option=128,e4:45:74:68:00:00
  363. #dhcp-option=129,NIC=eepro100
  364.  
  365. # Specify an option which will only be sent to the "red" network
  366. # (see dhcp-range for the declaration of the "red" network)
  367. # Note that the tag: part must precede the option: part.
  368. #dhcp-option = tag:red, option:ntp-server, 192.168.1.1
  369.  
  370. # The following DHCP options set up dnsmasq in the same way as is specified
  371. # for the ISC dhcpcd in
  372. # http://www.samba.org/samba/ftp/docs/textdocs/DHCP-Server-Configuration.txt
  373. # adapted for a typical dnsmasq installation where the host running
  374. # dnsmasq is also the host running samba.
  375. # you may want to uncomment some or all of them if you use
  376. # Windows clients and Samba.
  377. #dhcp-option=19,0 # option ip-forwarding off
  378. #dhcp-option=44,0.0.0.0 # set netbios-over-TCP/IP nameserver(s) aka WINS server(s)
  379. #dhcp-option=45,0.0.0.0 # netbios datagram distribution server
  380. #dhcp-option=46,8 # netbios node type
  381.  
  382. # Send an empty WPAD option. This may be REQUIRED to get windows 7 to behave.
  383. #dhcp-option=252,"\n"
  384.  
  385. # Send RFC-3397 DNS domain search DHCP option. WARNING: Your DHCP client
  386. # probably doesn't support this......
  387. #dhcp-option=option:domain-search,eng.apple.com,marketing.apple.com
  388.  
  389. # Send RFC-3442 classless static routes (note the netmask encoding)
  390. #dhcp-option=121,192.168.1.0/24,1.2.3.4,10.0.0.0/8,5.6.7.8
  391.  
  392. # Send vendor-class specific options encapsulated in DHCP option 43.
  393. # The meaning of the options is defined by the vendor-class so
  394. # options are sent only when the client supplied vendor class
  395. # matches the class given here. (A substring match is OK, so "MSFT"
  396. # matches "MSFT" and "MSFT 5.0"). This example sets the
  397. # mtftp address to 0.0.0.0 for PXEClients.
  398. #dhcp-option=vendor:PXEClient,1,0.0.0.0
  399.  
  400. # Send microsoft-specific option to tell windows to release the DHCP lease
  401. # when it shuts down. Note the "i" flag, to tell dnsmasq to send the
  402. # value as a four-byte integer - that's what microsoft wants. See
  403. # http://technet2.microsoft.com/WindowsServer/en/library/a70f1bb7-d2d4-49f0-96d6-4b7414ecfaae1033.mspx?mfr=true
  404. #dhcp-option=vendor:MSFT,2,1i
  405.  
  406. # Send the Encapsulated-vendor-class ID needed by some configurations of
  407. # Etherboot to allow is to recognise the DHCP server.
  408. #dhcp-option=vendor:Etherboot,60,"Etherboot"
  409.  
  410. # Send options to PXELinux. Note that we need to send the options even
  411. # though they don't appear in the parameter request list, so we need
  412. # to use dhcp-option-force here.
  413. # See http://syslinux.zytor.com/pxe.php#special for details.
  414. # Magic number - needed before anything else is recognised
  415. #dhcp-option-force=208,f1:00:74:7e
  416. # Configuration file name
  417. #dhcp-option-force=209,configs/common
  418. # Path prefix
  419. #dhcp-option-force=210,/tftpboot/pxelinux/files/
  420. # Reboot time. (Note 'i' to send 32-bit value)
  421. #dhcp-option-force=211,30i
  422.  
  423. # Set the boot filename for netboot/PXE. You will only need
  424. # this is you want to boot machines over the network and you will need
  425. # a TFTP server; either dnsmasq's built in TFTP server or an
  426. # external one. (See below for how to enable the TFTP server.)
  427. #dhcp-boot=pxelinux.0
  428.  
  429. # The same as above, but use custom tftp-server instead machine running dnsmasq
  430. #dhcp-boot=pxelinux,server.name,192.168.1.100
  431.  
  432. # Boot for Etherboot gPXE. The idea is to send two different
  433. # filenames, the first loads gPXE, and the second tells gPXE what to
  434. # load. The dhcp-match sets the gpxe tag for requests from gPXE.
  435. #dhcp-match=set:gpxe,175 # gPXE sends a 175 option.
  436. #dhcp-boot=tag:!gpxe,undionly.kpxe
  437. #dhcp-boot=mybootimage
  438.  
  439. # Encapsulated options for Etherboot gPXE. All the options are
  440. # encapsulated within option 175
  441. #dhcp-option=encap:175, 1, 5b # priority code
  442. #dhcp-option=encap:175, 176, 1b # no-proxydhcp
  443. #dhcp-option=encap:175, 177, string # bus-id
  444. #dhcp-option=encap:175, 189, 1b # BIOS drive code
  445. #dhcp-option=encap:175, 190, user # iSCSI username
  446. #dhcp-option=encap:175, 191, pass # iSCSI password
  447.  
  448. # Test for the architecture of a netboot client. PXE clients are
  449. # supposed to send their architecture as option 93. (See RFC 4578)
  450. #dhcp-match=peecees, option:client-arch, 0 #x86-32
  451. #dhcp-match=itanics, option:client-arch, 2 #IA64
  452. #dhcp-match=hammers, option:client-arch, 6 #x86-64
  453. #dhcp-match=mactels, option:client-arch, 7 #EFI x86-64
  454.  
  455. # Do real PXE, rather than just booting a single file, this is an
  456. # alternative to dhcp-boot.
  457. #pxe-prompt="What system shall I netboot?"
  458. # or with timeout before first available action is taken:
  459. #pxe-prompt="Press F8 for menu.", 60
  460.  
  461. # Available boot services. for PXE.
  462. #pxe-service=x86PC, "Boot from local disk"
  463.  
  464. # Loads <tftp-root>/pxelinux.0 from dnsmasq TFTP server.
  465. #pxe-service=x86PC, "Install Linux", pxelinux
  466.  
  467. # Loads <tftp-root>/pxelinux.0 from TFTP server at 1.2.3.4.
  468. # Beware this fails on old PXE ROMS.
  469. #pxe-service=x86PC, "Install Linux", pxelinux, 1.2.3.4
  470.  
  471. # Use bootserver on network, found my multicast or broadcast.
  472. #pxe-service=x86PC, "Install windows from RIS server", 1
  473.  
  474. # Use bootserver at a known IP address.
  475. #pxe-service=x86PC, "Install windows from RIS server", 1, 1.2.3.4
  476.  
  477. # If you have multicast-FTP available,
  478. # information for that can be passed in a similar way using options 1
  479. # to 5. See page 19 of
  480. # http://download.intel.com/design/archives/wfm/downloads/pxespec.pdf
  481.  
  482.  
  483. # Enable dnsmasq's built-in TFTP server
  484. #enable-tftp
  485.  
  486. # Set the root directory for files available via FTP.
  487. #tftp-root=/var/ftpd
  488.  
  489. # Make the TFTP server more secure: with this set, only files owned by
  490. # the user dnsmasq is running as will be send over the net.
  491. #tftp-secure
  492.  
  493. # This option stops dnsmasq from negotiating a larger blocksize for TFTP
  494. # transfers. It will slow things down, but may rescue some broken TFTP
  495. # clients.
  496. #tftp-no-blocksize
  497.  
  498. # Set the boot file name only when the "red" tag is set.
  499. #dhcp-boot=tag:red,pxelinux.red-net
  500.  
  501. # An example of dhcp-boot with an external TFTP server: the name and IP
  502. # address of the server are given after the filename.
  503. # Can fail with old PXE ROMS. Overridden by --pxe-service.
  504. #dhcp-boot=/var/ftpd/pxelinux.0,boothost,192.168.0.3
  505.  
  506. # If there are multiple external tftp servers having a same name
  507. # (using /etc/hosts) then that name can be specified as the
  508. # tftp_servername (the third option to dhcp-boot) and in that
  509. # case dnsmasq resolves this name and returns the resultant IP
  510. # addresses in round robin fasion. This facility can be used to
  511. # load balance the tftp load among a set of servers.
  512. #dhcp-boot=/var/ftpd/pxelinux.0,boothost,tftp_server_name
  513.  
  514. # Set the limit on DHCP leases, the default is 150
  515. #dhcp-lease-max=150
  516.  
  517. # The DHCP server needs somewhere on disk to keep its lease database.
  518. # This defaults to a sane location, but if you want to change it, use
  519. # the line below.
  520. #dhcp-leasefile=/var/lib/misc/dnsmasq.leases
  521.  
  522. # Set the DHCP server to authoritative mode. In this mode it will barge in
  523. # and take over the lease for any client which broadcasts on the network,
  524. # whether it has a record of the lease or not. This avoids long timeouts
  525. # when a machine wakes up on a new network. DO NOT enable this if there's
  526. # the slightest chance that you might end up accidentally configuring a DHCP
  527. # server for your campus/company accidentally. The ISC server uses
  528. # the same option, and this URL provides more information:
  529. # http://www.isc.org/files/auth.html
  530. #dhcp-authoritative
  531.  
  532. # Run an executable when a DHCP lease is created or destroyed.
  533. # The arguments sent to the script are "add" or "del",
  534. # then the MAC address, the IP address and finally the hostname
  535. # if there is one.
  536. #dhcp-script=/bin/echo
  537.  
  538. # Set the cachesize here.
  539. #cache-size=150
  540.  
  541. # If you want to disable negative caching, uncomment this.
  542. #no-negcache
  543.  
  544. # Normally responses which come from /etc/hosts and the DHCP lease
  545. # file have Time-To-Live set as zero, which conventionally means
  546. # do not cache further. If you are happy to trade lower load on the
  547. # server for potentially stale date, you can set a time-to-live (in
  548. # seconds) here.
  549. #local-ttl=
  550.  
  551. # If you want dnsmasq to detect attempts by Verisign to send queries
  552. # to unregistered .com and .net hosts to its sitefinder service and
  553. # have dnsmasq instead return the correct NXDOMAIN response, uncomment
  554. # this line. You can add similar lines to do the same for other
  555. # registries which have implemented wildcard A records.
  556. #bogus-nxdomain=64.94.110.11
  557.  
  558. # If you want to fix up DNS results from upstream servers, use the
  559. # alias option. This only works for IPv4.
  560. # This alias makes a result of 1.2.3.4 appear as 5.6.7.8
  561. #alias=1.2.3.4,5.6.7.8
  562. # and this maps 1.2.3.x to 5.6.7.x
  563. #alias=1.2.3.0,5.6.7.0,255.255.255.0
  564. # and this maps 192.168.0.10->192.168.0.40 to 10.0.0.10->10.0.0.40
  565. #alias=192.168.0.10-192.168.0.40,10.0.0.0,255.255.255.0
  566.  
  567. # Change these lines if you want dnsmasq to serve MX records.
  568.  
  569. # Return an MX record named "maildomain.com" with target
  570. # servermachine.com and preference 50
  571. #mx-host=maildomain.com,servermachine.com,50
  572.  
  573. # Set the default target for MX records created using the localmx option.
  574. #mx-target=servermachine.com
  575.  
  576. # Return an MX record pointing to the mx-target for all local
  577. # machines.
  578. #localmx
  579.  
  580. # Return an MX record pointing to itself for all local machines.
  581. #selfmx
  582.  
  583. # Change the following lines if you want dnsmasq to serve SRV
  584. # records. These are useful if you want to serve ldap requests for
  585. # Active Directory and other windows-originated DNS requests.
  586. # See RFC 2782.
  587. # You may add multiple srv-host lines.
  588. # The fields are <name>,<target>,<port>,<priority>,<weight>
  589. # If the domain part if missing from the name (so that is just has the
  590. # service and protocol sections) then the domain given by the domain=
  591. # config option is used. (Note that expand-hosts does not need to be
  592. # set for this to work.)
  593.  
  594. # A SRV record sending LDAP for the example.com domain to
  595. # ldapserver.example.com port 389
  596. #srv-host=_ldap._tcp.example.com,ldapserver.example.com,389
  597.  
  598. # A SRV record sending LDAP for the example.com domain to
  599. # ldapserver.example.com port 389 (using domain=)
  600. #domain=example.com
  601. #srv-host=_ldap._tcp,ldapserver.example.com,389
  602.  
  603. # Two SRV records for LDAP, each with different priorities
  604. #srv-host=_ldap._tcp.example.com,ldapserver.example.com,389,1
  605. #srv-host=_ldap._tcp.example.com,ldapserver.example.com,389,2
  606.  
  607. # A SRV record indicating that there is no LDAP server for the domain
  608. # example.com
  609. #srv-host=_ldap._tcp.example.com
  610.  
  611. # The following line shows how to make dnsmasq serve an arbitrary PTR
  612. # record. This is useful for DNS-SD. (Note that the
  613. # domain-name expansion done for SRV records _does_not
  614. # occur for PTR records.)
  615. #ptr-record=_http._tcp.dns-sd-services,"New Employee Page._http._tcp.dns-sd-services"
  616.  
  617. # Change the following lines to enable dnsmasq to serve TXT records.
  618. # These are used for things like SPF and zeroconf. (Note that the
  619. # domain-name expansion done for SRV records _does_not
  620. # occur for TXT records.)
  621.  
  622. #Example SPF.
  623. #txt-record=example.com,"v=spf1 a -all"
  624.  
  625. #Example zeroconf
  626. #txt-record=_http._tcp.example.com,name=value,paper=A4
  627.  
  628. # Provide an alias for a "local" DNS name. Note that this _only_ works
  629. # for targets which are names from DHCP or /etc/hosts. Give host
  630. # "bert" another name, bertrand
  631. #cname=bertand,bert
  632.  
  633. # For debugging purposes, log each DNS query as it passes through
  634. # dnsmasq.
  635. #log-queries
  636.  
  637. # Log lots of extra information about DHCP transactions.
  638. #log-dhcp
  639.  
  640. # Include another lot of configuration options.
  641. #conf-file=/etc/dnsmasq.more.conf
  642. #conf-dir=/etc/dnsmasq.d
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