Attachment 1470566 Details for Bug 1608571 – dnsmasq configuration on compute node

dnsmasq configuration on compute node

compute_node_dnsmasq_config_files.txt (text/plain), 26.63 KB, created by Walid A. on 2018-07-26 02:11:31 UTC

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Creator: Walid A.

Created: 2018-07-26 02:11:31 UTC

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patch

obsolete

># cd /etc/dnsmasq.d
># ls -ltr
>total 8
>-rw-r--r--. 1 root root 152 Jul 23 19:48 origin-dns.conf
>-rw-------. 1 root root  18 Jul 23 19:48 origin-upstream-dns.conf
>
># cat /etc/dnsmasq.d/origin-dns.conf
>no-resolv
>domain-needed
>no-negcache
>max-cache-ttl=1
>enable-dbus
>dns-forward-max=10000
>cache-size=10000
>bind-dynamic
>except-interface=lo
># End of config
>
># cat /etc/dnsmasq.d/origin-upstream-dns.conf
>server=172.31.0.2
>
># cat /etc/dnsmasq.conf
># Configuration file for dnsmasq.
>#
># Format is one option per line, legal options are the same
># as the long options legal on the command line. See
># "/usr/sbin/dnsmasq --help" or "man 8 dnsmasq" for details.
>
># Listen on this specific port instead of the standard DNS port
># (53). Setting this to zero completely disables DNS function,
># leaving only DHCP and/or TFTP.
>#port=5353
>
># The following two options make you a better netizen, since they
># tell dnsmasq to filter out queries which the public DNS cannot
># answer, and which load the servers (especially the root servers)
># unnecessarily. If you have a dial-on-demand link they also stop
># these requests from bringing up the link unnecessarily.
>
># Never forward plain names (without a dot or domain part)
>#domain-needed
># Never forward addresses in the non-routed address spaces.
>#bogus-priv
>
># Uncomment these to enable DNSSEC validation and caching:
># (Requires dnsmasq to be built with DNSSEC option.)
>#conf-file=%%PREFIX%%/share/dnsmasq/trust-anchors.conf
>#dnssec
>
># Replies which are not DNSSEC signed may be legitimate, because the domain
># is unsigned, or may be forgeries. Setting this option tells dnsmasq to
># check that an unsigned reply is OK, by finding a secure proof that a DS 
># record somewhere between the root and the domain does not exist. 
># The cost of setting this is that even queries in unsigned domains will need
># one or more extra DNS queries to verify.
>#dnssec-check-unsigned
>
># Uncomment this to filter useless windows-originated DNS requests
># which can trigger dial-on-demand links needlessly.
># Note that (amongst other things) this blocks all SRV requests,
># so don't use it if you use eg Kerberos, SIP, XMMP or Google-talk.
># This option only affects forwarding, SRV records originating for
># dnsmasq (via srv-host= lines) are not suppressed by it.
>#filterwin2k
>
># Change this line if you want dns to get its upstream servers from
># somewhere other that /etc/resolv.conf
>#resolv-file=
>
># By  default,  dnsmasq  will  send queries to any of the upstream
># servers it knows about and tries to favour servers to are  known
># to  be  up.  Uncommenting this forces dnsmasq to try each query
># with  each  server  strictly  in  the  order  they   appear   in
># /etc/resolv.conf
>#strict-order
>
># If you don't want dnsmasq to read /etc/resolv.conf or any other
># file, getting its servers from this file instead (see below), then
># uncomment this.
>#no-resolv
>
># If you don't want dnsmasq to poll /etc/resolv.conf or other resolv
># files for changes and re-read them then uncomment this.
>#no-poll
>
># Add other name servers here, with domain specs if they are for
># non-public domains.
>#server=/localnet/192.168.0.1
>
># Example of routing PTR queries to nameservers: this will send all
># address->name queries for 192.168.3/24 to nameserver 10.1.2.3
>#server=/3.168.192.in-addr.arpa/10.1.2.3
>
># Add local-only domains here, queries in these domains are answered
># from /etc/hosts or DHCP only.
>#local=/localnet/
>
># Add domains which you want to force to an IP address here.
># The example below send any host in double-click.net to a local
># web-server.
>#address=/double-click.net/127.0.0.1
>
># --address (and --server) work with IPv6 addresses too.
>#address=/www.thekelleys.org.uk/fe80::20d:60ff:fe36:f83
>
># Add the IPs of all queries to yahoo.com, google.com, and their
># subdomains to the vpn and search ipsets:
>#ipset=/yahoo.com/google.com/vpn,search
>
># You can control how dnsmasq talks to a server: this forces
># queries to 10.1.2.3 to be routed via eth1
># server=10.1.2.3@eth1
>
># and this sets the source (ie local) address used to talk to
># 10.1.2.3 to 192.168.1.1 port 55 (there must be a interface with that
># IP on the machine, obviously).
># server=10.1.2.3@192.168.1.1#55
>
># If you want dnsmasq to change uid and gid to something other
># than the default, edit the following lines.
>#user=
>#group=
>
># If you want dnsmasq to listen for DHCP and DNS requests only on
># specified interfaces (and the loopback) give the name of the
># interface (eg eth0) here.
># Repeat the line for more than one interface.
>#interface=
># Or you can specify which interface _not_ to listen on
>#except-interface=
># Or which to listen on by address (remember to include 127.0.0.1 if
># you use this.)
>#listen-address=
># If you want dnsmasq to provide only DNS service on an interface,
># configure it as shown above, and then use the following line to
># disable DHCP and TFTP on it.
>#no-dhcp-interface=
>
># On systems which support it, dnsmasq binds the wildcard address,
># even when it is listening on only some interfaces. It then discards
># requests that it shouldn't reply to. This has the advantage of
># working even when interfaces come and go and change address. If you
># want dnsmasq to really bind only the interfaces it is listening on,
># uncomment this option. About the only time you may need this is when
># running another nameserver on the same machine.
>#bind-interfaces
>
># If you don't want dnsmasq to read /etc/hosts, uncomment the
># following line.
>#no-hosts
># or if you want it to read another file, as well as /etc/hosts, use
># this.
>#addn-hosts=/etc/banner_add_hosts
>
># Set this (and domain: see below) if you want to have a domain
># automatically added to simple names in a hosts-file.
>#expand-hosts
>
># Set the domain for dnsmasq. this is optional, but if it is set, it
># does the following things.
># 1) Allows DHCP hosts to have fully qualified domain names, as long
>#     as the domain part matches this setting.
># 2) Sets the "domain" DHCP option thereby potentially setting the
>#    domain of all systems configured by DHCP
># 3) Provides the domain part for "expand-hosts"
>#domain=thekelleys.org.uk
>
># Set a different domain for a particular subnet
>#domain=wireless.thekelleys.org.uk,192.168.2.0/24
>
># Same idea, but range rather then subnet
>#domain=reserved.thekelleys.org.uk,192.68.3.100,192.168.3.200
>
># Uncomment this to enable the integrated DHCP server, you need
># to supply the range of addresses available for lease and optionally
># a lease time. If you have more than one network, you will need to
># repeat this for each network on which you want to supply DHCP
># service.
>#dhcp-range=192.168.0.50,192.168.0.150,12h
>
># This is an example of a DHCP range where the netmask is given. This
># is needed for networks we reach the dnsmasq DHCP server via a relay
># agent. If you don't know what a DHCP relay agent is, you probably
># don't need to worry about this.
>#dhcp-range=192.168.0.50,192.168.0.150,255.255.255.0,12h
>
># This is an example of a DHCP range which sets a tag, so that
># some DHCP options may be set only for this network.
>#dhcp-range=set:red,192.168.0.50,192.168.0.150
>
># Use this DHCP range only when the tag "green" is set.
>#dhcp-range=tag:green,192.168.0.50,192.168.0.150,12h
>
># Specify a subnet which can't be used for dynamic address allocation,
># is available for hosts with matching --dhcp-host lines. Note that
># dhcp-host declarations will be ignored unless there is a dhcp-range
># of some type for the subnet in question.
># In this case the netmask is implied (it comes from the network
># configuration on the machine running dnsmasq) it is possible to give
># an explicit netmask instead.
>#dhcp-range=192.168.0.0,static
>
># Enable DHCPv6. Note that the prefix-length does not need to be specified
># and defaults to 64 if missing/
>#dhcp-range=1234::2, 1234::500, 64, 12h
>
># Do Router Advertisements, BUT NOT DHCP for this subnet.
>#dhcp-range=1234::, ra-only 
>
># Do Router Advertisements, BUT NOT DHCP for this subnet, also try and
># add names to the DNS for the IPv6 address of SLAAC-configured dual-stack 
># hosts. Use the DHCPv4 lease to derive the name, network segment and 
># MAC address and assume that the host will also have an
># IPv6 address calculated using the SLAAC alogrithm.
>#dhcp-range=1234::, ra-names
>
># Do Router Advertisements, BUT NOT DHCP for this subnet.
># Set the lifetime to 46 hours. (Note: minimum lifetime is 2 hours.)
>#dhcp-range=1234::, ra-only, 48h
>
># Do DHCP and Router Advertisements for this subnet. Set the A bit in the RA
># so that clients can use SLAAC addresses as well as DHCP ones.
>#dhcp-range=1234::2, 1234::500, slaac
>
># Do Router Advertisements and stateless DHCP for this subnet. Clients will
># not get addresses from DHCP, but they will get other configuration information.
># They will use SLAAC for addresses.
>#dhcp-range=1234::, ra-stateless
>
># Do stateless DHCP, SLAAC, and generate DNS names for SLAAC addresses
># from DHCPv4 leases.
>#dhcp-range=1234::, ra-stateless, ra-names
>
># Do router advertisements for all subnets where we're doing DHCPv6
># Unless overriden by ra-stateless, ra-names, et al, the router 
># advertisements will have the M and O bits set, so that the clients
># get addresses and configuration from DHCPv6, and the A bit reset, so the 
># clients don't use SLAAC addresses.
>#enable-ra
>
># Supply parameters for specified hosts using DHCP. There are lots
># of valid alternatives, so we will give examples of each. Note that
># IP addresses DO NOT have to be in the range given above, they just
># need to be on the same network. The order of the parameters in these
># do not matter, it's permissible to give name, address and MAC in any
># order.
>
># Always allocate the host with Ethernet address 11:22:33:44:55:66
># The IP address 192.168.0.60
>#dhcp-host=11:22:33:44:55:66,192.168.0.60
>
># Always set the name of the host with hardware address
># 11:22:33:44:55:66 to be "fred"
>#dhcp-host=11:22:33:44:55:66,fred
>
># Always give the host with Ethernet address 11:22:33:44:55:66
># the name fred and IP address 192.168.0.60 and lease time 45 minutes
>#dhcp-host=11:22:33:44:55:66,fred,192.168.0.60,45m
>
># Give a host with Ethernet address 11:22:33:44:55:66 or
># 12:34:56:78:90:12 the IP address 192.168.0.60. Dnsmasq will assume
># that these two Ethernet interfaces will never be in use at the same
># time, and give the IP address to the second, even if it is already
># in use by the first. Useful for laptops with wired and wireless
># addresses.
>#dhcp-host=11:22:33:44:55:66,12:34:56:78:90:12,192.168.0.60
>
># Give the machine which says its name is "bert" IP address
># 192.168.0.70 and an infinite lease
>#dhcp-host=bert,192.168.0.70,infinite
>
># Always give the host with client identifier 01:02:02:04
># the IP address 192.168.0.60
>#dhcp-host=id:01:02:02:04,192.168.0.60
>
># Always give the Infiniband interface with hardware address
># 80:00:00:48:fe:80:00:00:00:00:00:00:f4:52:14:03:00:28:05:81 the
># ip address 192.168.0.61. The client id is derived from the prefix
># ff:00:00:00:00:00:02:00:00:02:c9:00 and the last 8 pairs of
># hex digits of the hardware address.
>#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
>
># Always give the host with client identifier "marjorie"
># the IP address 192.168.0.60
>#dhcp-host=id:marjorie,192.168.0.60
>
># Enable the address given for "judge" in /etc/hosts
># to be given to a machine presenting the name "judge" when
># it asks for a DHCP lease.
>#dhcp-host=judge
>
># Never offer DHCP service to a machine whose Ethernet
># address is 11:22:33:44:55:66
>#dhcp-host=11:22:33:44:55:66,ignore
>
># Ignore any client-id presented by the machine with Ethernet
># address 11:22:33:44:55:66. This is useful to prevent a machine
># being treated differently when running under different OS's or
># between PXE boot and OS boot.
>#dhcp-host=11:22:33:44:55:66,id:*
>
># Send extra options which are tagged as "red" to
># the machine with Ethernet address 11:22:33:44:55:66
>#dhcp-host=11:22:33:44:55:66,set:red
>
># Send extra options which are tagged as "red" to
># any machine with Ethernet address starting 11:22:33:
>#dhcp-host=11:22:33:*:*:*,set:red
>
># Give a fixed IPv6 address and name to client with 
># DUID 00:01:00:01:16:d2:83:fc:92:d4:19:e2:d8:b2
># Note the MAC addresses CANNOT be used to identify DHCPv6 clients.
># Note also the they [] around the IPv6 address are obilgatory.
>#dhcp-host=id:00:01:00:01:16:d2:83:fc:92:d4:19:e2:d8:b2, fred, [1234::5] 
>
># Ignore any clients which are not specified in dhcp-host lines
># or /etc/ethers. Equivalent to ISC "deny unknown-clients".
># This relies on the special "known" tag which is set when
># a host is matched.
>#dhcp-ignore=tag:!known
>
># Send extra options which are tagged as "red" to any machine whose
># DHCP vendorclass string includes the substring "Linux"
>#dhcp-vendorclass=set:red,Linux
>
># Send extra options which are tagged as "red" to any machine one
># of whose DHCP userclass strings includes the substring "accounts"
>#dhcp-userclass=set:red,accounts
>
># Send extra options which are tagged as "red" to any machine whose
># MAC address matches the pattern.
>#dhcp-mac=set:red,00:60:8C:*:*:*
>
># If this line is uncommented, dnsmasq will read /etc/ethers and act
># on the ethernet-address/IP pairs found there just as if they had
># been given as --dhcp-host options. Useful if you keep
># MAC-address/host mappings there for other purposes.
>#read-ethers
>
># Send options to hosts which ask for a DHCP lease.
># See RFC 2132 for details of available options.
># Common options can be given to dnsmasq by name:
># run "dnsmasq --help dhcp" to get a list.
># Note that all the common settings, such as netmask and
># broadcast address, DNS server and default route, are given
># sane defaults by dnsmasq. You very likely will not need
># any dhcp-options. If you use Windows clients and Samba, there
># are some options which are recommended, they are detailed at the
># end of this section.
>
># Override the default route supplied by dnsmasq, which assumes the
># router is the same machine as the one running dnsmasq.
>#dhcp-option=3,1.2.3.4
>
># Do the same thing, but using the option name
>#dhcp-option=option:router,1.2.3.4
>
># Override the default route supplied by dnsmasq and send no default
># route at all. Note that this only works for the options sent by
># default (1, 3, 6, 12, 28) the same line will send a zero-length option
># for all other option numbers.
>#dhcp-option=3
>
># Set the NTP time server addresses to 192.168.0.4 and 10.10.0.5
>#dhcp-option=option:ntp-server,192.168.0.4,10.10.0.5
>
># Send DHCPv6 option. Note [] around IPv6 addresses.
>#dhcp-option=option6:dns-server,[1234::77],[1234::88]
>
># Send DHCPv6 option for namservers as the machine running 
># dnsmasq and another.
>#dhcp-option=option6:dns-server,[::],[1234::88]
>
># Ask client to poll for option changes every six hours. (RFC4242)
>#dhcp-option=option6:information-refresh-time,6h
>
># Set option 58 client renewal time (T1). Defaults to half of the
># lease time if not specified. (RFC2132)
>#dhcp-option=option:T1:1m
>
># Set option 59 rebinding time (T2). Defaults to 7/8 of the
># lease time if not specified. (RFC2132)
>#dhcp-option=option:T2:2m
>
># Set the NTP time server address to be the same machine as
># is running dnsmasq
>#dhcp-option=42,0.0.0.0
>
># Set the NIS domain name to "welly"
>#dhcp-option=40,welly
>
># Set the default time-to-live to 50
>#dhcp-option=23,50
>
># Set the "all subnets are local" flag
>#dhcp-option=27,1
>
># Send the etherboot magic flag and then etherboot options (a string).
>#dhcp-option=128,e4:45:74:68:00:00
>#dhcp-option=129,NIC=eepro100
>
># Specify an option which will only be sent to the "red" network
># (see dhcp-range for the declaration of the "red" network)
># Note that the tag: part must precede the option: part.
>#dhcp-option = tag:red, option:ntp-server, 192.168.1.1
>
># The following DHCP options set up dnsmasq in the same way as is specified
># for the ISC dhcpcd in
># http://www.samba.org/samba/ftp/docs/textdocs/DHCP-Server-Configuration.txt
># adapted for a typical dnsmasq installation where the host running
># dnsmasq is also the host running samba.
># you may want to uncomment some or all of them if you use
># Windows clients and Samba.
>#dhcp-option=19,0           # option ip-forwarding off
>#dhcp-option=44,0.0.0.0     # set netbios-over-TCP/IP nameserver(s) aka WINS server(s)
>#dhcp-option=45,0.0.0.0     # netbios datagram distribution server
>#dhcp-option=46,8           # netbios node type
>
># Send an empty WPAD option. This may be REQUIRED to get windows 7 to behave.
>#dhcp-option=252,"\n"
>
># Send RFC-3397 DNS domain search DHCP option. WARNING: Your DHCP client
># probably doesn't support this......
>#dhcp-option=option:domain-search,eng.apple.com,marketing.apple.com
>
># Send RFC-3442 classless static routes (note the netmask encoding)
>#dhcp-option=121,192.168.1.0/24,1.2.3.4,10.0.0.0/8,5.6.7.8
>
># Send vendor-class specific options encapsulated in DHCP option 43.
># The meaning of the options is defined by the vendor-class so
># options are sent only when the client supplied vendor class
># matches the class given here. (A substring match is OK, so "MSFT"
># matches "MSFT" and "MSFT 5.0"). This example sets the
># mtftp address to 0.0.0.0 for PXEClients.
>#dhcp-option=vendor:PXEClient,1,0.0.0.0
>
># Send microsoft-specific option to tell windows to release the DHCP lease
># when it shuts down. Note the "i" flag, to tell dnsmasq to send the
># value as a four-byte integer - that's what microsoft wants. See
># http://technet2.microsoft.com/WindowsServer/en/library/a70f1bb7-d2d4-49f0-96d6-4b7414ecfaae1033.mspx?mfr=true
>#dhcp-option=vendor:MSFT,2,1i
>
># Send the Encapsulated-vendor-class ID needed by some configurations of
># Etherboot to allow is to recognise the DHCP server.
>#dhcp-option=vendor:Etherboot,60,"Etherboot"
>
># Send options to PXELinux. Note that we need to send the options even
># though they don't appear in the parameter request list, so we need
># to use dhcp-option-force here.
># See http://syslinux.zytor.com/pxe.php#special for details.
># Magic number - needed before anything else is recognised
>#dhcp-option-force=208,f1:00:74:7e
># Configuration file name
>#dhcp-option-force=209,configs/common
># Path prefix
>#dhcp-option-force=210,/tftpboot/pxelinux/files/
># Reboot time. (Note 'i' to send 32-bit value)
>#dhcp-option-force=211,30i
>
># Set the boot filename for netboot/PXE. You will only need
># this is you want to boot machines over the network and you will need
># a TFTP server; either dnsmasq's built in TFTP server or an
># external one. (See below for how to enable the TFTP server.)
>#dhcp-boot=pxelinux.0
>
># The same as above, but use custom tftp-server instead machine running dnsmasq
>#dhcp-boot=pxelinux,server.name,192.168.1.100
>
># Boot for Etherboot gPXE. The idea is to send two different
># filenames, the first loads gPXE, and the second tells gPXE what to
># load. The dhcp-match sets the gpxe tag for requests from gPXE.
>#dhcp-match=set:gpxe,175 # gPXE sends a 175 option.
>#dhcp-boot=tag:!gpxe,undionly.kpxe
>#dhcp-boot=mybootimage
>
># Encapsulated options for Etherboot gPXE. All the options are
># encapsulated within option 175
>#dhcp-option=encap:175, 1, 5b         # priority code
>#dhcp-option=encap:175, 176, 1b       # no-proxydhcp
>#dhcp-option=encap:175, 177, string   # bus-id
>#dhcp-option=encap:175, 189, 1b       # BIOS drive code
>#dhcp-option=encap:175, 190, user     # iSCSI username
>#dhcp-option=encap:175, 191, pass     # iSCSI password
>
># Test for the architecture of a netboot client. PXE clients are
># supposed to send their architecture as option 93. (See RFC 4578)
>#dhcp-match=peecees, option:client-arch, 0 #x86-32
>#dhcp-match=itanics, option:client-arch, 2 #IA64
>#dhcp-match=hammers, option:client-arch, 6 #x86-64
>#dhcp-match=mactels, option:client-arch, 7 #EFI x86-64
>
># Do real PXE, rather than just booting a single file, this is an
># alternative to dhcp-boot.
>#pxe-prompt="What system shall I netboot?"
># or with timeout before first available action is taken:
>#pxe-prompt="Press F8 for menu.", 60
>
># Available boot services. for PXE.
>#pxe-service=x86PC, "Boot from local disk"
>
># Loads <tftp-root>/pxelinux.0 from dnsmasq TFTP server.
>#pxe-service=x86PC, "Install Linux", pxelinux
>
># Loads <tftp-root>/pxelinux.0 from TFTP server at 1.2.3.4.
># Beware this fails on old PXE ROMS.
>#pxe-service=x86PC, "Install Linux", pxelinux, 1.2.3.4
>
># Use bootserver on network, found my multicast or broadcast.
>#pxe-service=x86PC, "Install windows from RIS server", 1
>
># Use bootserver at a known IP address.
>#pxe-service=x86PC, "Install windows from RIS server", 1, 1.2.3.4
>
># If you have multicast-FTP available,
># information for that can be passed in a similar way using options 1
># to 5. See page 19 of
># http://download.intel.com/design/archives/wfm/downloads/pxespec.pdf
>
>
># Enable dnsmasq's built-in TFTP server
>#enable-tftp
>
># Set the root directory for files available via FTP.
>#tftp-root=/var/ftpd
>
># Do not abort if the tftp-root is unavailable
>#tftp-no-fail
>
># Make the TFTP server more secure: with this set, only files owned by
># the user dnsmasq is running as will be send over the net.
>#tftp-secure
>
># This option stops dnsmasq from negotiating a larger blocksize for TFTP
># transfers. It will slow things down, but may rescue some broken TFTP
># clients.
>#tftp-no-blocksize
>
># Set the boot file name only when the "red" tag is set.
>#dhcp-boot=tag:red,pxelinux.red-net
>
># An example of dhcp-boot with an external TFTP server: the name and IP
># address of the server are given after the filename.
># Can fail with old PXE ROMS. Overridden by --pxe-service.
>#dhcp-boot=/var/ftpd/pxelinux.0,boothost,192.168.0.3
>
># If there are multiple external tftp servers having a same name
># (using /etc/hosts) then that name can be specified as the
># tftp_servername (the third option to dhcp-boot) and in that
># case dnsmasq resolves this name and returns the resultant IP
># addresses in round robin fasion. This facility can be used to
># load balance the tftp load among a set of servers.
>#dhcp-boot=/var/ftpd/pxelinux.0,boothost,tftp_server_name
>
># Set the limit on DHCP leases, the default is 150
>#dhcp-lease-max=150
>
># The DHCP server needs somewhere on disk to keep its lease database.
># This defaults to a sane location, but if you want to change it, use
># the line below.
>#dhcp-leasefile=/var/lib/dnsmasq/dnsmasq.leases
>
># Set the DHCP server to authoritative mode. In this mode it will barge in
># and take over the lease for any client which broadcasts on the network,
># whether it has a record of the lease or not. This avoids long timeouts
># when a machine wakes up on a new network. DO NOT enable this if there's
># the slightest chance that you might end up accidentally configuring a DHCP
># server for your campus/company accidentally. The ISC server uses
># the same option, and this URL provides more information:
># http://www.isc.org/files/auth.html
>#dhcp-authoritative
>
># Run an executable when a DHCP lease is created or destroyed.
># The arguments sent to the script are "add" or "del",
># then the MAC address, the IP address and finally the hostname
># if there is one.
>#dhcp-script=/bin/echo
>
># Set the cachesize here.
>#cache-size=150
>
># If you want to disable negative caching, uncomment this.
>#no-negcache
>
># Normally responses which come from /etc/hosts and the DHCP lease
># file have Time-To-Live set as zero, which conventionally means
># do not cache further. If you are happy to trade lower load on the
># server for potentially stale date, you can set a time-to-live (in
># seconds) here.
>#local-ttl=
>
># If you want dnsmasq to detect attempts by Verisign to send queries
># to unregistered .com and .net hosts to its sitefinder service and
># have dnsmasq instead return the correct NXDOMAIN response, uncomment
># this line. You can add similar lines to do the same for other
># registries which have implemented wildcard A records.
>#bogus-nxdomain=64.94.110.11
>
># If you want to fix up DNS results from upstream servers, use the
># alias option. This only works for IPv4.
># This alias makes a result of 1.2.3.4 appear as 5.6.7.8
>#alias=1.2.3.4,5.6.7.8
># and this maps 1.2.3.x to 5.6.7.x
>#alias=1.2.3.0,5.6.7.0,255.255.255.0
># and this maps 192.168.0.10->192.168.0.40 to 10.0.0.10->10.0.0.40
>#alias=192.168.0.10-192.168.0.40,10.0.0.0,255.255.255.0
>
># Change these lines if you want dnsmasq to serve MX records.
>
># Return an MX record named "maildomain.com" with target
># servermachine.com and preference 50
>#mx-host=maildomain.com,servermachine.com,50
>
># Set the default target for MX records created using the localmx option.
>#mx-target=servermachine.com
>
># Return an MX record pointing to the mx-target for all local
># machines.
>#localmx
>
># Return an MX record pointing to itself for all local machines.
>#selfmx
>
># Change the following lines if you want dnsmasq to serve SRV
># records.  These are useful if you want to serve ldap requests for
># Active Directory and other windows-originated DNS requests.
># See RFC 2782.
># You may add multiple srv-host lines.
># The fields are <name>,<target>,<port>,<priority>,<weight>
># If the domain part if missing from the name (so that is just has the
># service and protocol sections) then the domain given by the domain=
># config option is used. (Note that expand-hosts does not need to be
># set for this to work.)
>
># A SRV record sending LDAP for the example.com domain to
># ldapserver.example.com port 389
>#srv-host=_ldap._tcp.example.com,ldapserver.example.com,389
>
># A SRV record sending LDAP for the example.com domain to
># ldapserver.example.com port 389 (using domain=)
>#domain=example.com
>#srv-host=_ldap._tcp,ldapserver.example.com,389
>
># Two SRV records for LDAP, each with different priorities
>#srv-host=_ldap._tcp.example.com,ldapserver.example.com,389,1
>#srv-host=_ldap._tcp.example.com,ldapserver.example.com,389,2
>
># A SRV record indicating that there is no LDAP server for the domain
># example.com
>#srv-host=_ldap._tcp.example.com
>
># The following line shows how to make dnsmasq serve an arbitrary PTR
># record. This is useful for DNS-SD. (Note that the
># domain-name expansion done for SRV records _does_not
># occur for PTR records.)
>#ptr-record=_http._tcp.dns-sd-services,"New Employee Page._http._tcp.dns-sd-services"
>
># Change the following lines to enable dnsmasq to serve TXT records.
># These are used for things like SPF and zeroconf. (Note that the
># domain-name expansion done for SRV records _does_not
># occur for TXT records.)
>
>#Example SPF.
>#txt-record=example.com,"v=spf1 a -all"
>
>#Example zeroconf
>#txt-record=_http._tcp.example.com,name=value,paper=A4
>
># Provide an alias for a "local" DNS name. Note that this _only_ works
># for targets which are names from DHCP or /etc/hosts. Give host
># "bert" another name, bertrand
>#cname=bertand,bert
>
># For debugging purposes, log each DNS query as it passes through
># dnsmasq.
>#log-queries
>
># Log lots of extra information about DHCP transactions.
>#log-dhcp
>
># Include another lot of configuration options.
>#conf-file=/etc/dnsmasq.more.conf
>#conf-dir=/etc/dnsmasq.d
>
># Include all the files in a directory except those ending in .bak
>#conf-dir=/etc/dnsmasq.d,.bak
>
># Include all files in a directory which end in .conf
>#conf-dir=/etc/dnsmasq.d/,*.conf
>
># Include all files in /etc/dnsmasq.d except RPM backup files
>conf-dir=/etc/dnsmasq.d,.rpmnew,.rpmsave,.rpmorig

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Attachments on bug 1608571: 1470566