Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 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 | |
Simon Kelley | 2f77797 | 2012-04-16 14:58:53 +0100 | [diff] [blame] | 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 | |
Simon Kelley | b8187c8 | 2005-11-26 21:46:27 +0000 | [diff] [blame] | 12 | # The following two options make you a better netizen, since they |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 13 | # tell dnsmasq to filter out queries which the public DNS cannot |
Simon Kelley | b8187c8 | 2005-11-26 21:46:27 +0000 | [diff] [blame] | 14 | # answer, and which load the servers (especially the root servers) |
Simon Kelley | 572b41e | 2011-02-18 18:11:18 +0000 | [diff] [blame] | 15 | # unnecessarily. If you have a dial-on-demand link they also stop |
| 16 | # these requests from bringing up the link unnecessarily. |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 17 | |
Simon Kelley | 3d8df26 | 2005-08-29 12:19:27 +0100 | [diff] [blame] | 18 | # Never forward plain names (without a dot or domain part) |
Simon Kelley | 1697269 | 2006-10-16 20:04:18 +0100 | [diff] [blame] | 19 | #domain-needed |
Simon Kelley | c1bb850 | 2004-08-11 18:40:17 +0100 | [diff] [blame] | 20 | # Never forward addresses in the non-routed address spaces. |
Simon Kelley | 1697269 | 2006-10-16 20:04:18 +0100 | [diff] [blame] | 21 | #bogus-priv |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 22 | |
| 23 | |
Simon Kelley | c1bb850 | 2004-08-11 18:40:17 +0100 | [diff] [blame] | 24 | # Uncomment this to filter useless windows-originated DNS requests |
| 25 | # which can trigger dial-on-demand links needlessly. |
Simon Kelley | b8187c8 | 2005-11-26 21:46:27 +0000 | [diff] [blame] | 26 | # Note that (amongst other things) this blocks all SRV requests, |
Simon Kelley | 824af85 | 2008-02-12 20:43:05 +0000 | [diff] [blame] | 27 | # so don't use it if you use eg Kerberos, SIP, XMMP or Google-talk. |
Simon Kelley | f6b7dc4 | 2005-01-23 12:06:08 +0000 | [diff] [blame] | 28 | # This option only affects forwarding, SRV records originating for |
| 29 | # dnsmasq (via srv-host= lines) are not suppressed by it. |
Simon Kelley | c1bb850 | 2004-08-11 18:40:17 +0100 | [diff] [blame] | 30 | #filterwin2k |
| 31 | |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 32 | # Change this line if you want dns to get its upstream servers from |
Simon Kelley | b8187c8 | 2005-11-26 21:46:27 +0000 | [diff] [blame] | 33 | # somewhere other that /etc/resolv.conf |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 34 | #resolv-file= |
| 35 | |
Simon Kelley | 1ab84e2 | 2004-01-29 16:48:35 +0000 | [diff] [blame] | 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 | |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 43 | # If you don't want dnsmasq to read /etc/resolv.conf or any other |
Simon Kelley | b8187c8 | 2005-11-26 21:46:27 +0000 | [diff] [blame] | 44 | # file, getting its servers from this file instead (see below), then |
Simon Kelley | 832af0b | 2007-01-21 20:01:28 +0000 | [diff] [blame] | 45 | # uncomment this. |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 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 | |
Simon Kelley | b8187c8 | 2005-11-26 21:46:27 +0000 | [diff] [blame] | 52 | # Add other name servers here, with domain specs if they are for |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 53 | # non-public domains. |
| 54 | #server=/localnet/192.168.0.1 |
| 55 | |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 56 | # Example of routing PTR queries to nameservers: this will send all |
Simon Kelley | f2621c7 | 2007-04-29 19:47:21 +0100 | [diff] [blame] | 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 | |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 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. |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 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 |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 68 | |
Simon Kelley | 824af85 | 2008-02-12 20:43:05 +0000 | [diff] [blame] | 69 | # --address (and --server) work with IPv6 addresses too. |
| 70 | #address=/www.thekelleys.org.uk/fe80::20d:60ff:fe36:f83 |
| 71 | |
Jason A. Donenfeld | 13d86c7 | 2013-02-22 18:20:53 +0000 | [diff] [blame] | 72 | # Add the IPs of all queries to yahoo.com, google.com, and their |
| 73 | # subdomains to the vpn and search ipsets: |
| 74 | #ipset=/yahoo.com/google.com/vpn,search |
| 75 | |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 76 | # You can control how dnsmasq talks to a server: this forces |
Simon Kelley | 824af85 | 2008-02-12 20:43:05 +0000 | [diff] [blame] | 77 | # queries to 10.1.2.3 to be routed via eth1 |
Simon Kelley | 8ef5ada | 2010-06-03 19:42:45 +0100 | [diff] [blame] | 78 | # server=10.1.2.3@eth1 |
Simon Kelley | 824af85 | 2008-02-12 20:43:05 +0000 | [diff] [blame] | 79 | |
| 80 | # and this sets the source (ie local) address used to talk to |
| 81 | # 10.1.2.3 to 192.168.1.1 port 55 (there must be a interface with that |
| 82 | # IP on the machine, obviously). |
Simon Kelley | 8ef5ada | 2010-06-03 19:42:45 +0100 | [diff] [blame] | 83 | # server=10.1.2.3@192.168.1.1#55 |
Simon Kelley | 824af85 | 2008-02-12 20:43:05 +0000 | [diff] [blame] | 84 | |
Simon Kelley | f6b7dc4 | 2005-01-23 12:06:08 +0000 | [diff] [blame] | 85 | # If you want dnsmasq to change uid and gid to something other |
| 86 | # than the default, edit the following lines. |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 87 | #user= |
| 88 | #group= |
| 89 | |
Simon Kelley | b8187c8 | 2005-11-26 21:46:27 +0000 | [diff] [blame] | 90 | # If you want dnsmasq to listen for DHCP and DNS requests only on |
| 91 | # specified interfaces (and the loopback) give the name of the |
| 92 | # interface (eg eth0) here. |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 93 | # Repeat the line for more than one interface. |
| 94 | #interface= |
| 95 | # Or you can specify which interface _not_ to listen on |
| 96 | #except-interface= |
| 97 | # Or which to listen on by address (remember to include 127.0.0.1 if |
| 98 | # you use this.) |
| 99 | #listen-address= |
Simon Kelley | 3d8df26 | 2005-08-29 12:19:27 +0100 | [diff] [blame] | 100 | # If you want dnsmasq to provide only DNS service on an interface, |
| 101 | # configure it as shown above, and then use the following line to |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 102 | # disable DHCP and TFTP on it. |
Simon Kelley | 3d8df26 | 2005-08-29 12:19:27 +0100 | [diff] [blame] | 103 | #no-dhcp-interface= |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 104 | |
Simon Kelley | 44a2a31 | 2004-03-10 20:04:35 +0000 | [diff] [blame] | 105 | # On systems which support it, dnsmasq binds the wildcard address, |
| 106 | # even when it is listening on only some interfaces. It then discards |
Simon Kelley | b8187c8 | 2005-11-26 21:46:27 +0000 | [diff] [blame] | 107 | # requests that it shouldn't reply to. This has the advantage of |
Simon Kelley | 44a2a31 | 2004-03-10 20:04:35 +0000 | [diff] [blame] | 108 | # working even when interfaces come and go and change address. If you |
| 109 | # want dnsmasq to really bind only the interfaces it is listening on, |
Simon Kelley | b8187c8 | 2005-11-26 21:46:27 +0000 | [diff] [blame] | 110 | # uncomment this option. About the only time you may need this is when |
Simon Kelley | 44a2a31 | 2004-03-10 20:04:35 +0000 | [diff] [blame] | 111 | # running another nameserver on the same machine. |
Simon Kelley | b8187c8 | 2005-11-26 21:46:27 +0000 | [diff] [blame] | 112 | #bind-interfaces |
Simon Kelley | 44a2a31 | 2004-03-10 20:04:35 +0000 | [diff] [blame] | 113 | |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 114 | # If you don't want dnsmasq to read /etc/hosts, uncomment the |
| 115 | # following line. |
| 116 | #no-hosts |
| 117 | # or if you want it to read another file, as well as /etc/hosts, use |
| 118 | # this. |
| 119 | #addn-hosts=/etc/banner_add_hosts |
| 120 | |
| 121 | # Set this (and domain: see below) if you want to have a domain |
| 122 | # automatically added to simple names in a hosts-file. |
| 123 | #expand-hosts |
| 124 | |
Simon Kelley | 44a2a31 | 2004-03-10 20:04:35 +0000 | [diff] [blame] | 125 | # Set the domain for dnsmasq. this is optional, but if it is set, it |
| 126 | # does the following things. |
| 127 | # 1) Allows DHCP hosts to have fully qualified domain names, as long |
| 128 | # as the domain part matches this setting. |
| 129 | # 2) Sets the "domain" DHCP option thereby potentially setting the |
| 130 | # domain of all systems configured by DHCP |
| 131 | # 3) Provides the domain part for "expand-hosts" |
| 132 | #domain=thekelleys.org.uk |
Simon Kelley | b8187c8 | 2005-11-26 21:46:27 +0000 | [diff] [blame] | 133 | |
Simon Kelley | 9009d74 | 2008-11-14 20:04:27 +0000 | [diff] [blame] | 134 | # Set a different domain for a particular subnet |
| 135 | #domain=wireless.thekelleys.org.uk,192.168.2.0/24 |
| 136 | |
| 137 | # Same idea, but range rather then subnet |
| 138 | #domain=reserved.thekelleys.org.uk,192.68.3.100,192.168.3.200 |
| 139 | |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 140 | # Uncomment this to enable the integrated DHCP server, you need |
Simon Kelley | b8187c8 | 2005-11-26 21:46:27 +0000 | [diff] [blame] | 141 | # to supply the range of addresses available for lease and optionally |
Simon Kelley | 44a2a31 | 2004-03-10 20:04:35 +0000 | [diff] [blame] | 142 | # a lease time. If you have more than one network, you will need to |
| 143 | # repeat this for each network on which you want to supply DHCP |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 144 | # service. |
| 145 | #dhcp-range=192.168.0.50,192.168.0.150,12h |
| 146 | |
Simon Kelley | 44a2a31 | 2004-03-10 20:04:35 +0000 | [diff] [blame] | 147 | # This is an example of a DHCP range where the netmask is given. This |
Simon Kelley | b8187c8 | 2005-11-26 21:46:27 +0000 | [diff] [blame] | 148 | # is needed for networks we reach the dnsmasq DHCP server via a relay |
Simon Kelley | 44a2a31 | 2004-03-10 20:04:35 +0000 | [diff] [blame] | 149 | # agent. If you don't know what a DHCP relay agent is, you probably |
| 150 | # don't need to worry about this. |
| 151 | #dhcp-range=192.168.0.50,192.168.0.150,255.255.255.0,12h |
| 152 | |
Simon Kelley | 8ef5ada | 2010-06-03 19:42:45 +0100 | [diff] [blame] | 153 | # This is an example of a DHCP range which sets a tag, so that |
Simon Kelley | 44a2a31 | 2004-03-10 20:04:35 +0000 | [diff] [blame] | 154 | # some DHCP options may be set only for this network. |
Simon Kelley | 8ef5ada | 2010-06-03 19:42:45 +0100 | [diff] [blame] | 155 | #dhcp-range=set:red,192.168.0.50,192.168.0.150 |
Simon Kelley | 44a2a31 | 2004-03-10 20:04:35 +0000 | [diff] [blame] | 156 | |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 157 | # Use this DHCP range only when the tag "green" is set. |
Simon Kelley | 8ef5ada | 2010-06-03 19:42:45 +0100 | [diff] [blame] | 158 | #dhcp-range=tag:green,192.168.0.50,192.168.0.150,12h |
| 159 | |
| 160 | # Specify a subnet which can't be used for dynamic address allocation, |
| 161 | # is available for hosts with matching --dhcp-host lines. Note that |
| 162 | # dhcp-host declarations will be ignored unless there is a dhcp-range |
| 163 | # of some type for the subnet in question. |
| 164 | # In this case the netmask is implied (it comes from the network |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 165 | # configuration on the machine running dnsmasq) it is possible to give |
| 166 | # an explicit netmask instead. |
Simon Kelley | 8ef5ada | 2010-06-03 19:42:45 +0100 | [diff] [blame] | 167 | #dhcp-range=192.168.0.0,static |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 168 | |
Simon Kelley | 843c96b | 2012-02-27 17:42:38 +0000 | [diff] [blame] | 169 | # Enable DHCPv6. Note that the prefix-length does not need to be specified |
| 170 | # and defaults to 64 if missing/ |
| 171 | #dhcp-range=1234::2, 1234::500, 64, 12h |
| 172 | |
Simon Kelley | 0010b47 | 2012-02-29 12:18:30 +0000 | [diff] [blame] | 173 | # Do Router Advertisements, BUT NOT DHCP for this subnet. |
Simon Kelley | 843c96b | 2012-02-27 17:42:38 +0000 | [diff] [blame] | 174 | #dhcp-range=1234::, ra-only |
| 175 | |
Simon Kelley | 7023e38 | 2012-03-09 12:05:49 +0000 | [diff] [blame] | 176 | # Do Router Advertisements, BUT NOT DHCP for this subnet, also try and |
| 177 | # add names to the DNS for the IPv6 address of SLAAC-configured dual-stack |
| 178 | # hosts. Use the DHCPv4 lease to derive the name, network segment and |
| 179 | # MAC address and assume that the host will also have an |
| 180 | # IPv6 address calculated using the SLAAC alogrithm. |
Simon Kelley | 7023e38 | 2012-03-09 12:05:49 +0000 | [diff] [blame] | 181 | #dhcp-range=1234::, ra-names |
| 182 | |
Simon Kelley | 0010b47 | 2012-02-29 12:18:30 +0000 | [diff] [blame] | 183 | # Do Router Advertisements, BUT NOT DHCP for this subnet. |
| 184 | # Set the lifetime to 46 hours. (Note: minimum lifetime is 2 hours.) |
| 185 | #dhcp-range=1234::, ra-only, 48h |
| 186 | |
Simon Kelley | e8ca69e | 2012-03-26 21:23:26 +0100 | [diff] [blame] | 187 | # Do DHCP and Router Advertisements for this subnet. Set the A bit in the RA |
| 188 | # so that clients can use SLAAC addresses as well as DHCP ones. |
| 189 | #dhcp-range=1234::2, 1234::500, slaac |
| 190 | |
| 191 | # Do Router Advertisements and stateless DHCP for this subnet. Clients will |
| 192 | # not get addresses from DHCP, but they will get other configuration information. |
| 193 | # They will use SLAAC for addresses. |
| 194 | #dhcp-range=1234::, ra-stateless |
| 195 | |
| 196 | # Do stateless DHCP, SLAAC, and generate DNS names for SLAAC addresses |
| 197 | # from DHCPv4 leases. |
| 198 | #dhcp-range=1234::, ra-stateless, ra-names |
| 199 | |
| 200 | # Do router advertisements for all subnets where we're doing DHCPv6 |
| 201 | # Unless overriden by ra-stateless, ra-names, et al, the router |
| 202 | # advertisements will have the M and O bits set, so that the clients |
| 203 | # get addresses and configuration from DHCPv6, and the A bit reset, so the |
| 204 | # clients don't use SLAAC addresses. |
| 205 | #enable-ra |
| 206 | |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 207 | # Supply parameters for specified hosts using DHCP. There are lots |
Simon Kelley | 1ab84e2 | 2004-01-29 16:48:35 +0000 | [diff] [blame] | 208 | # of valid alternatives, so we will give examples of each. Note that |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 209 | # IP addresses DO NOT have to be in the range given above, they just |
Simon Kelley | 1ab84e2 | 2004-01-29 16:48:35 +0000 | [diff] [blame] | 210 | # need to be on the same network. The order of the parameters in these |
Simon Kelley | 572b41e | 2011-02-18 18:11:18 +0000 | [diff] [blame] | 211 | # do not matter, it's permissible to give name, address and MAC in any |
| 212 | # order. |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 213 | |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 214 | # Always allocate the host with Ethernet address 11:22:33:44:55:66 |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 215 | # The IP address 192.168.0.60 |
| 216 | #dhcp-host=11:22:33:44:55:66,192.168.0.60 |
| 217 | |
| 218 | # Always set the name of the host with hardware address |
| 219 | # 11:22:33:44:55:66 to be "fred" |
| 220 | #dhcp-host=11:22:33:44:55:66,fred |
| 221 | |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 222 | # Always give the host with Ethernet address 11:22:33:44:55:66 |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 223 | # the name fred and IP address 192.168.0.60 and lease time 45 minutes |
| 224 | #dhcp-host=11:22:33:44:55:66,fred,192.168.0.60,45m |
| 225 | |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 226 | # Give a host with Ethernet address 11:22:33:44:55:66 or |
Simon Kelley | 9009d74 | 2008-11-14 20:04:27 +0000 | [diff] [blame] | 227 | # 12:34:56:78:90:12 the IP address 192.168.0.60. Dnsmasq will assume |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 228 | # that these two Ethernet interfaces will never be in use at the same |
Simon Kelley | 9009d74 | 2008-11-14 20:04:27 +0000 | [diff] [blame] | 229 | # time, and give the IP address to the second, even if it is already |
| 230 | # in use by the first. Useful for laptops with wired and wireless |
| 231 | # addresses. |
| 232 | #dhcp-host=11:22:33:44:55:66,12:34:56:78:90:12,192.168.0.60 |
| 233 | |
Simon Kelley | 824af85 | 2008-02-12 20:43:05 +0000 | [diff] [blame] | 234 | # Give the machine which says its name is "bert" IP address |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 235 | # 192.168.0.70 and an infinite lease |
| 236 | #dhcp-host=bert,192.168.0.70,infinite |
| 237 | |
Simon Kelley | b8187c8 | 2005-11-26 21:46:27 +0000 | [diff] [blame] | 238 | # Always give the host with client identifier 01:02:02:04 |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 239 | # the IP address 192.168.0.60 |
| 240 | #dhcp-host=id:01:02:02:04,192.168.0.60 |
| 241 | |
| 242 | # Always give the host with client identifier "marjorie" |
| 243 | # the IP address 192.168.0.60 |
| 244 | #dhcp-host=id:marjorie,192.168.0.60 |
| 245 | |
Simon Kelley | 1ab84e2 | 2004-01-29 16:48:35 +0000 | [diff] [blame] | 246 | # Enable the address given for "judge" in /etc/hosts |
| 247 | # to be given to a machine presenting the name "judge" when |
| 248 | # it asks for a DHCP lease. |
| 249 | #dhcp-host=judge |
| 250 | |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 251 | # Never offer DHCP service to a machine whose Ethernet |
Simon Kelley | 33820b7 | 2004-04-03 21:10:00 +0100 | [diff] [blame] | 252 | # address is 11:22:33:44:55:66 |
| 253 | #dhcp-host=11:22:33:44:55:66,ignore |
| 254 | |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 255 | # Ignore any client-id presented by the machine with Ethernet |
Simon Kelley | b8187c8 | 2005-11-26 21:46:27 +0000 | [diff] [blame] | 256 | # address 11:22:33:44:55:66. This is useful to prevent a machine |
Simon Kelley | a84fa1d | 2004-04-23 22:21:21 +0100 | [diff] [blame] | 257 | # being treated differently when running under different OS's or |
| 258 | # between PXE boot and OS boot. |
| 259 | #dhcp-host=11:22:33:44:55:66,id:* |
| 260 | |
Simon Kelley | b8187c8 | 2005-11-26 21:46:27 +0000 | [diff] [blame] | 261 | # Send extra options which are tagged as "red" to |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 262 | # the machine with Ethernet address 11:22:33:44:55:66 |
Simon Kelley | 8ef5ada | 2010-06-03 19:42:45 +0100 | [diff] [blame] | 263 | #dhcp-host=11:22:33:44:55:66,set:red |
Simon Kelley | 33820b7 | 2004-04-03 21:10:00 +0100 | [diff] [blame] | 264 | |
Simon Kelley | b8187c8 | 2005-11-26 21:46:27 +0000 | [diff] [blame] | 265 | # Send extra options which are tagged as "red" to |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 266 | # any machine with Ethernet address starting 11:22:33: |
Simon Kelley | 8ef5ada | 2010-06-03 19:42:45 +0100 | [diff] [blame] | 267 | #dhcp-host=11:22:33:*:*:*,set:red |
Simon Kelley | 0a85254 | 2005-03-23 20:28:59 +0000 | [diff] [blame] | 268 | |
Simon Kelley | 843c96b | 2012-02-27 17:42:38 +0000 | [diff] [blame] | 269 | # Give a fixed IPv6 address and name to client with |
| 270 | # DUID 00:01:00:01:16:d2:83:fc:92:d4:19:e2:d8:b2 |
| 271 | # Note the MAC addresses CANNOT be used to identify DHCPv6 clients. |
| 272 | # Note also the they [] around the IPv6 address are obilgatory. |
| 273 | #dhcp-host=id:00:01:00:01:16:d2:83:fc:92:d4:19:e2:d8:b2, fred, [1234::5] |
| 274 | |
Simon Kelley | 3862deb | 2012-01-06 20:16:07 +0000 | [diff] [blame] | 275 | # Ignore any clients which are not specified in dhcp-host lines |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 276 | # or /etc/ethers. Equivalent to ISC "deny unknown-clients". |
| 277 | # This relies on the special "known" tag which is set when |
Simon Kelley | 5aabfc7 | 2007-08-29 11:24:47 +0100 | [diff] [blame] | 278 | # a host is matched. |
Simon Kelley | 8ef5ada | 2010-06-03 19:42:45 +0100 | [diff] [blame] | 279 | #dhcp-ignore=tag:!known |
Simon Kelley | 5aabfc7 | 2007-08-29 11:24:47 +0100 | [diff] [blame] | 280 | |
Simon Kelley | a222641 | 2004-05-13 20:27:08 +0100 | [diff] [blame] | 281 | # Send extra options which are tagged as "red" to any machine whose |
| 282 | # DHCP vendorclass string includes the substring "Linux" |
Simon Kelley | 8ef5ada | 2010-06-03 19:42:45 +0100 | [diff] [blame] | 283 | #dhcp-vendorclass=set:red,Linux |
Simon Kelley | a222641 | 2004-05-13 20:27:08 +0100 | [diff] [blame] | 284 | |
Simon Kelley | b8187c8 | 2005-11-26 21:46:27 +0000 | [diff] [blame] | 285 | # Send extra options which are tagged as "red" to any machine one |
Simon Kelley | a222641 | 2004-05-13 20:27:08 +0100 | [diff] [blame] | 286 | # of whose DHCP userclass strings includes the substring "accounts" |
Simon Kelley | 8ef5ada | 2010-06-03 19:42:45 +0100 | [diff] [blame] | 287 | #dhcp-userclass=set:red,accounts |
Simon Kelley | a222641 | 2004-05-13 20:27:08 +0100 | [diff] [blame] | 288 | |
Simon Kelley | cdeda28 | 2006-03-16 20:16:06 +0000 | [diff] [blame] | 289 | # Send extra options which are tagged as "red" to any machine whose |
| 290 | # MAC address matches the pattern. |
Simon Kelley | 8ef5ada | 2010-06-03 19:42:45 +0100 | [diff] [blame] | 291 | #dhcp-mac=set:red,00:60:8C:*:*:* |
Simon Kelley | cdeda28 | 2006-03-16 20:16:06 +0000 | [diff] [blame] | 292 | |
Simon Kelley | 44a2a31 | 2004-03-10 20:04:35 +0000 | [diff] [blame] | 293 | # If this line is uncommented, dnsmasq will read /etc/ethers and act |
| 294 | # on the ethernet-address/IP pairs found there just as if they had |
| 295 | # been given as --dhcp-host options. Useful if you keep |
| 296 | # MAC-address/host mappings there for other purposes. |
| 297 | #read-ethers |
| 298 | |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 299 | # Send options to hosts which ask for a DHCP lease. |
| 300 | # See RFC 2132 for details of available options. |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 301 | # Common options can be given to dnsmasq by name: |
Simon Kelley | f2621c7 | 2007-04-29 19:47:21 +0100 | [diff] [blame] | 302 | # run "dnsmasq --help dhcp" to get a list. |
Simon Kelley | 1ab84e2 | 2004-01-29 16:48:35 +0000 | [diff] [blame] | 303 | # Note that all the common settings, such as netmask and |
| 304 | # broadcast address, DNS server and default route, are given |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 305 | # sane defaults by dnsmasq. You very likely will not need |
Simon Kelley | 1ab84e2 | 2004-01-29 16:48:35 +0000 | [diff] [blame] | 306 | # any dhcp-options. If you use Windows clients and Samba, there |
| 307 | # are some options which are recommended, they are detailed at the |
| 308 | # end of this section. |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 309 | |
Simon Kelley | cdeda28 | 2006-03-16 20:16:06 +0000 | [diff] [blame] | 310 | # Override the default route supplied by dnsmasq, which assumes the |
| 311 | # router is the same machine as the one running dnsmasq. |
| 312 | #dhcp-option=3,1.2.3.4 |
| 313 | |
Simon Kelley | f2621c7 | 2007-04-29 19:47:21 +0100 | [diff] [blame] | 314 | # Do the same thing, but using the option name |
| 315 | #dhcp-option=option:router,1.2.3.4 |
| 316 | |
Simon Kelley | 832af0b | 2007-01-21 20:01:28 +0000 | [diff] [blame] | 317 | # Override the default route supplied by dnsmasq and send no default |
| 318 | # route at all. Note that this only works for the options sent by |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 319 | # default (1, 3, 6, 12, 28) the same line will send a zero-length option |
Simon Kelley | 832af0b | 2007-01-21 20:01:28 +0000 | [diff] [blame] | 320 | # for all other option numbers. |
| 321 | #dhcp-option=3 |
| 322 | |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 323 | # Set the NTP time server addresses to 192.168.0.4 and 10.10.0.5 |
Simon Kelley | f2621c7 | 2007-04-29 19:47:21 +0100 | [diff] [blame] | 324 | #dhcp-option=option:ntp-server,192.168.0.4,10.10.0.5 |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 325 | |
Simon Kelley | 843c96b | 2012-02-27 17:42:38 +0000 | [diff] [blame] | 326 | # Send DHCPv6 option. Note [] around IPv6 addresses. |
Simon Kelley | 0010b47 | 2012-02-29 12:18:30 +0000 | [diff] [blame] | 327 | #dhcp-option=option6:dns-server,[1234::77],[1234::88] |
| 328 | |
| 329 | # Send DHCPv6 option for namservers as the machine running |
| 330 | # dnsmasq and another. |
| 331 | #dhcp-option=option6:dns-server,[::],[1234::88] |
Simon Kelley | 843c96b | 2012-02-27 17:42:38 +0000 | [diff] [blame] | 332 | |
Simon Kelley | 23245c0 | 2012-07-18 16:21:11 +0100 | [diff] [blame] | 333 | # Ask client to poll for option changes every six hours. (RFC4242) |
| 334 | #dhcp-option=option6:information-refresh-time,6h |
| 335 | |
Simon Kelley | b8187c8 | 2005-11-26 21:46:27 +0000 | [diff] [blame] | 336 | # Set the NTP time server address to be the same machine as |
Simon Kelley | 1ab84e2 | 2004-01-29 16:48:35 +0000 | [diff] [blame] | 337 | # is running dnsmasq |
| 338 | #dhcp-option=42,0.0.0.0 |
| 339 | |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 340 | # Set the NIS domain name to "welly" |
| 341 | #dhcp-option=40,welly |
| 342 | |
Simon Kelley | 1ab84e2 | 2004-01-29 16:48:35 +0000 | [diff] [blame] | 343 | # Set the default time-to-live to 50 |
| 344 | #dhcp-option=23,50 |
| 345 | |
| 346 | # Set the "all subnets are local" flag |
| 347 | #dhcp-option=27,1 |
| 348 | |
Simon Kelley | 33820b7 | 2004-04-03 21:10:00 +0100 | [diff] [blame] | 349 | # Send the etherboot magic flag and then etherboot options (a string). |
| 350 | #dhcp-option=128,e4:45:74:68:00:00 |
| 351 | #dhcp-option=129,NIC=eepro100 |
| 352 | |
Simon Kelley | b8187c8 | 2005-11-26 21:46:27 +0000 | [diff] [blame] | 353 | # Specify an option which will only be sent to the "red" network |
Simon Kelley | 44a2a31 | 2004-03-10 20:04:35 +0000 | [diff] [blame] | 354 | # (see dhcp-range for the declaration of the "red" network) |
Simon Kelley | 8ef5ada | 2010-06-03 19:42:45 +0100 | [diff] [blame] | 355 | # Note that the tag: part must precede the option: part. |
| 356 | #dhcp-option = tag:red, option:ntp-server, 192.168.1.1 |
Simon Kelley | 44a2a31 | 2004-03-10 20:04:35 +0000 | [diff] [blame] | 357 | |
Simon Kelley | 1ab84e2 | 2004-01-29 16:48:35 +0000 | [diff] [blame] | 358 | # The following DHCP options set up dnsmasq in the same way as is specified |
Simon Kelley | b8187c8 | 2005-11-26 21:46:27 +0000 | [diff] [blame] | 359 | # for the ISC dhcpcd in |
Simon Kelley | 1ab84e2 | 2004-01-29 16:48:35 +0000 | [diff] [blame] | 360 | # http://www.samba.org/samba/ftp/docs/textdocs/DHCP-Server-Configuration.txt |
| 361 | # adapted for a typical dnsmasq installation where the host running |
| 362 | # dnsmasq is also the host running samba. |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 363 | # you may want to uncomment some or all of them if you use |
Simon Kelley | 9009d74 | 2008-11-14 20:04:27 +0000 | [diff] [blame] | 364 | # Windows clients and Samba. |
Simon Kelley | b8187c8 | 2005-11-26 21:46:27 +0000 | [diff] [blame] | 365 | #dhcp-option=19,0 # option ip-forwarding off |
Simon Kelley | 1ab84e2 | 2004-01-29 16:48:35 +0000 | [diff] [blame] | 366 | #dhcp-option=44,0.0.0.0 # set netbios-over-TCP/IP nameserver(s) aka WINS server(s) |
| 367 | #dhcp-option=45,0.0.0.0 # netbios datagram distribution server |
| 368 | #dhcp-option=46,8 # netbios node type |
Simon Kelley | fd9fa48 | 2004-10-21 20:24:00 +0100 | [diff] [blame] | 369 | |
Simon Kelley | 03bfcf6 | 2012-01-07 14:37:37 +0000 | [diff] [blame] | 370 | # Send an empty WPAD option. This may be REQUIRED to get windows 7 to behave. |
| 371 | #dhcp-option=252,"\n" |
| 372 | |
Simon Kelley | fd9fa48 | 2004-10-21 20:24:00 +0100 | [diff] [blame] | 373 | # Send RFC-3397 DNS domain search DHCP option. WARNING: Your DHCP client |
| 374 | # probably doesn't support this...... |
Simon Kelley | f2621c7 | 2007-04-29 19:47:21 +0100 | [diff] [blame] | 375 | #dhcp-option=option:domain-search,eng.apple.com,marketing.apple.com |
Simon Kelley | 1ab84e2 | 2004-01-29 16:48:35 +0000 | [diff] [blame] | 376 | |
Simon Kelley | cdeda28 | 2006-03-16 20:16:06 +0000 | [diff] [blame] | 377 | # Send RFC-3442 classless static routes (note the netmask encoding) |
| 378 | #dhcp-option=121,192.168.1.0/24,1.2.3.4,10.0.0.0/8,5.6.7.8 |
| 379 | |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 380 | # Send vendor-class specific options encapsulated in DHCP option 43. |
Simon Kelley | 1b7ecd1 | 2007-02-05 14:57:57 +0000 | [diff] [blame] | 381 | # The meaning of the options is defined by the vendor-class so |
| 382 | # options are sent only when the client supplied vendor class |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 383 | # matches the class given here. (A substring match is OK, so "MSFT" |
Simon Kelley | 1b7ecd1 | 2007-02-05 14:57:57 +0000 | [diff] [blame] | 384 | # matches "MSFT" and "MSFT 5.0"). This example sets the |
| 385 | # mtftp address to 0.0.0.0 for PXEClients. |
Simon Kelley | 91dccd0 | 2005-03-31 17:48:32 +0100 | [diff] [blame] | 386 | #dhcp-option=vendor:PXEClient,1,0.0.0.0 |
| 387 | |
Simon Kelley | 1b7ecd1 | 2007-02-05 14:57:57 +0000 | [diff] [blame] | 388 | # Send microsoft-specific option to tell windows to release the DHCP lease |
| 389 | # when it shuts down. Note the "i" flag, to tell dnsmasq to send the |
| 390 | # value as a four-byte integer - that's what microsoft wants. See |
| 391 | # http://technet2.microsoft.com/WindowsServer/en/library/a70f1bb7-d2d4-49f0-96d6-4b7414ecfaae1033.mspx?mfr=true |
| 392 | #dhcp-option=vendor:MSFT,2,1i |
| 393 | |
Simon Kelley | 6b01084 | 2007-02-12 20:32:07 +0000 | [diff] [blame] | 394 | # Send the Encapsulated-vendor-class ID needed by some configurations of |
| 395 | # Etherboot to allow is to recognise the DHCP server. |
| 396 | #dhcp-option=vendor:Etherboot,60,"Etherboot" |
| 397 | |
| 398 | # Send options to PXELinux. Note that we need to send the options even |
| 399 | # though they don't appear in the parameter request list, so we need |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 400 | # to use dhcp-option-force here. |
Simon Kelley | 6b01084 | 2007-02-12 20:32:07 +0000 | [diff] [blame] | 401 | # See http://syslinux.zytor.com/pxe.php#special for details. |
| 402 | # Magic number - needed before anything else is recognised |
| 403 | #dhcp-option-force=208,f1:00:74:7e |
| 404 | # Configuration file name |
| 405 | #dhcp-option-force=209,configs/common |
| 406 | # Path prefix |
| 407 | #dhcp-option-force=210,/tftpboot/pxelinux/files/ |
| 408 | # Reboot time. (Note 'i' to send 32-bit value) |
| 409 | #dhcp-option-force=211,30i |
| 410 | |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 411 | # Set the boot filename for netboot/PXE. You will only need |
Simon Kelley | 832af0b | 2007-01-21 20:01:28 +0000 | [diff] [blame] | 412 | # this is you want to boot machines over the network and you will need |
| 413 | # a TFTP server; either dnsmasq's built in TFTP server or an |
| 414 | # external one. (See below for how to enable the TFTP server.) |
| 415 | #dhcp-boot=pxelinux.0 |
| 416 | |
Simon Kelley | 7de060b | 2011-08-26 17:24:52 +0100 | [diff] [blame] | 417 | # The same as above, but use custom tftp-server instead machine running dnsmasq |
| 418 | #dhcp-boot=pxelinux,server.name,192.168.1.100 |
| 419 | |
Simon Kelley | 824af85 | 2008-02-12 20:43:05 +0000 | [diff] [blame] | 420 | # Boot for Etherboot gPXE. The idea is to send two different |
| 421 | # filenames, the first loads gPXE, and the second tells gPXE what to |
| 422 | # load. The dhcp-match sets the gpxe tag for requests from gPXE. |
Simon Kelley | 8ef5ada | 2010-06-03 19:42:45 +0100 | [diff] [blame] | 423 | #dhcp-match=set:gpxe,175 # gPXE sends a 175 option. |
| 424 | #dhcp-boot=tag:!gpxe,undionly.kpxe |
Simon Kelley | 824af85 | 2008-02-12 20:43:05 +0000 | [diff] [blame] | 425 | #dhcp-boot=mybootimage |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 426 | |
Simon Kelley | 73a08a2 | 2009-02-05 20:28:08 +0000 | [diff] [blame] | 427 | # Encapsulated options for Etherboot gPXE. All the options are |
| 428 | # encapsulated within option 175 |
| 429 | #dhcp-option=encap:175, 1, 5b # priority code |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 430 | #dhcp-option=encap:175, 176, 1b # no-proxydhcp |
| 431 | #dhcp-option=encap:175, 177, string # bus-id |
Simon Kelley | 73a08a2 | 2009-02-05 20:28:08 +0000 | [diff] [blame] | 432 | #dhcp-option=encap:175, 189, 1b # BIOS drive code |
| 433 | #dhcp-option=encap:175, 190, user # iSCSI username |
| 434 | #dhcp-option=encap:175, 191, pass # iSCSI password |
| 435 | |
| 436 | # Test for the architecture of a netboot client. PXE clients are |
| 437 | # supposed to send their architecture as option 93. (See RFC 4578) |
| 438 | #dhcp-match=peecees, option:client-arch, 0 #x86-32 |
| 439 | #dhcp-match=itanics, option:client-arch, 2 #IA64 |
| 440 | #dhcp-match=hammers, option:client-arch, 6 #x86-64 |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 441 | #dhcp-match=mactels, option:client-arch, 7 #EFI x86-64 |
Simon Kelley | 73a08a2 | 2009-02-05 20:28:08 +0000 | [diff] [blame] | 442 | |
Simon Kelley | 7622fc0 | 2009-06-04 20:32:05 +0100 | [diff] [blame] | 443 | # Do real PXE, rather than just booting a single file, this is an |
| 444 | # alternative to dhcp-boot. |
| 445 | #pxe-prompt="What system shall I netboot?" |
| 446 | # or with timeout before first available action is taken: |
| 447 | #pxe-prompt="Press F8 for menu.", 60 |
| 448 | |
| 449 | # Available boot services. for PXE. |
Simon Kelley | 316e273 | 2010-01-22 20:16:09 +0000 | [diff] [blame] | 450 | #pxe-service=x86PC, "Boot from local disk" |
Simon Kelley | 7622fc0 | 2009-06-04 20:32:05 +0100 | [diff] [blame] | 451 | |
| 452 | # Loads <tftp-root>/pxelinux.0 from dnsmasq TFTP server. |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 453 | #pxe-service=x86PC, "Install Linux", pxelinux |
Simon Kelley | 7622fc0 | 2009-06-04 20:32:05 +0100 | [diff] [blame] | 454 | |
| 455 | # Loads <tftp-root>/pxelinux.0 from TFTP server at 1.2.3.4. |
| 456 | # Beware this fails on old PXE ROMS. |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 457 | #pxe-service=x86PC, "Install Linux", pxelinux, 1.2.3.4 |
Simon Kelley | 7622fc0 | 2009-06-04 20:32:05 +0100 | [diff] [blame] | 458 | |
| 459 | # Use bootserver on network, found my multicast or broadcast. |
| 460 | #pxe-service=x86PC, "Install windows from RIS server", 1 |
| 461 | |
| 462 | # Use bootserver at a known IP address. |
| 463 | #pxe-service=x86PC, "Install windows from RIS server", 1, 1.2.3.4 |
| 464 | |
| 465 | # If you have multicast-FTP available, |
| 466 | # information for that can be passed in a similar way using options 1 |
| 467 | # to 5. See page 19 of |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 468 | # http://download.intel.com/design/archives/wfm/downloads/pxespec.pdf |
Simon Kelley | 7622fc0 | 2009-06-04 20:32:05 +0100 | [diff] [blame] | 469 | |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 470 | |
Simon Kelley | 832af0b | 2007-01-21 20:01:28 +0000 | [diff] [blame] | 471 | # Enable dnsmasq's built-in TFTP server |
| 472 | #enable-tftp |
| 473 | |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 474 | # Set the root directory for files available via FTP. |
Simon Kelley | 832af0b | 2007-01-21 20:01:28 +0000 | [diff] [blame] | 475 | #tftp-root=/var/ftpd |
| 476 | |
| 477 | # Make the TFTP server more secure: with this set, only files owned by |
| 478 | # the user dnsmasq is running as will be send over the net. |
| 479 | #tftp-secure |
| 480 | |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 481 | # This option stops dnsmasq from negotiating a larger blocksize for TFTP |
Simon Kelley | 1f15b81 | 2009-10-13 17:49:32 +0100 | [diff] [blame] | 482 | # transfers. It will slow things down, but may rescue some broken TFTP |
| 483 | # clients. |
| 484 | #tftp-no-blocksize |
| 485 | |
Simon Kelley | 832af0b | 2007-01-21 20:01:28 +0000 | [diff] [blame] | 486 | # Set the boot file name only when the "red" tag is set. |
Simon Kelley | cf568a3 | 2012-10-09 20:51:31 +0100 | [diff] [blame] | 487 | #dhcp-boot=tag:red,pxelinux.red-net |
Simon Kelley | 832af0b | 2007-01-21 20:01:28 +0000 | [diff] [blame] | 488 | |
Simon Kelley | 7622fc0 | 2009-06-04 20:32:05 +0100 | [diff] [blame] | 489 | # An example of dhcp-boot with an external TFTP server: the name and IP |
Simon Kelley | 832af0b | 2007-01-21 20:01:28 +0000 | [diff] [blame] | 490 | # address of the server are given after the filename. |
Simon Kelley | 7622fc0 | 2009-06-04 20:32:05 +0100 | [diff] [blame] | 491 | # Can fail with old PXE ROMS. Overridden by --pxe-service. |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 492 | #dhcp-boot=/var/ftpd/pxelinux.0,boothost,192.168.0.3 |
| 493 | |
Simon Kelley | 7de060b | 2011-08-26 17:24:52 +0100 | [diff] [blame] | 494 | # If there are multiple external tftp servers having a same name |
| 495 | # (using /etc/hosts) then that name can be specified as the |
| 496 | # tftp_servername (the third option to dhcp-boot) and in that |
| 497 | # case dnsmasq resolves this name and returns the resultant IP |
| 498 | # addresses in round robin fasion. This facility can be used to |
| 499 | # load balance the tftp load among a set of servers. |
| 500 | #dhcp-boot=/var/ftpd/pxelinux.0,boothost,tftp_server_name |
| 501 | |
Simon Kelley | 44a2a31 | 2004-03-10 20:04:35 +0000 | [diff] [blame] | 502 | # Set the limit on DHCP leases, the default is 150 |
| 503 | #dhcp-lease-max=150 |
| 504 | |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 505 | # The DHCP server needs somewhere on disk to keep its lease database. |
| 506 | # This defaults to a sane location, but if you want to change it, use |
| 507 | # the line below. |
Simon Kelley | 1ab84e2 | 2004-01-29 16:48:35 +0000 | [diff] [blame] | 508 | #dhcp-leasefile=/var/lib/misc/dnsmasq.leases |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 509 | |
Simon Kelley | b8187c8 | 2005-11-26 21:46:27 +0000 | [diff] [blame] | 510 | # Set the DHCP server to authoritative mode. In this mode it will barge in |
| 511 | # and take over the lease for any client which broadcasts on the network, |
Simon Kelley | fd9fa48 | 2004-10-21 20:24:00 +0100 | [diff] [blame] | 512 | # whether it has a record of the lease or not. This avoids long timeouts |
Simon Kelley | b8187c8 | 2005-11-26 21:46:27 +0000 | [diff] [blame] | 513 | # when a machine wakes up on a new network. DO NOT enable this if there's |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 514 | # the slightest chance that you might end up accidentally configuring a DHCP |
Simon Kelley | 5aabfc7 | 2007-08-29 11:24:47 +0100 | [diff] [blame] | 515 | # server for your campus/company accidentally. The ISC server uses |
Simon Kelley | fd9fa48 | 2004-10-21 20:24:00 +0100 | [diff] [blame] | 516 | # the same option, and this URL provides more information: |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 517 | # http://www.isc.org/files/auth.html |
Simon Kelley | fd9fa48 | 2004-10-21 20:24:00 +0100 | [diff] [blame] | 518 | #dhcp-authoritative |
| 519 | |
Simon Kelley | 7cebd20 | 2006-05-06 14:13:33 +0100 | [diff] [blame] | 520 | # Run an executable when a DHCP lease is created or destroyed. |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 521 | # The arguments sent to the script are "add" or "del", |
Simon Kelley | 7cebd20 | 2006-05-06 14:13:33 +0100 | [diff] [blame] | 522 | # then the MAC address, the IP address and finally the hostname |
Simon Kelley | 28866e9 | 2011-02-14 20:19:14 +0000 | [diff] [blame] | 523 | # if there is one. |
Simon Kelley | 7cebd20 | 2006-05-06 14:13:33 +0100 | [diff] [blame] | 524 | #dhcp-script=/bin/echo |
| 525 | |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 526 | # Set the cachesize here. |
Simon Kelley | 1ab84e2 | 2004-01-29 16:48:35 +0000 | [diff] [blame] | 527 | #cache-size=150 |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 528 | |
| 529 | # If you want to disable negative caching, uncomment this. |
| 530 | #no-negcache |
| 531 | |
Simon Kelley | be0f45c | 2012-07-16 13:35:25 +0100 | [diff] [blame] | 532 | # Normally responses which come from /etc/hosts and the DHCP lease |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 533 | # file have Time-To-Live set as zero, which conventionally means |
Simon Kelley | b8187c8 | 2005-11-26 21:46:27 +0000 | [diff] [blame] | 534 | # do not cache further. If you are happy to trade lower load on the |
| 535 | # server for potentially stale date, you can set a time-to-live (in |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 536 | # seconds) here. |
| 537 | #local-ttl= |
| 538 | |
| 539 | # If you want dnsmasq to detect attempts by Verisign to send queries |
| 540 | # to unregistered .com and .net hosts to its sitefinder service and |
| 541 | # have dnsmasq instead return the correct NXDOMAIN response, uncomment |
| 542 | # this line. You can add similar lines to do the same for other |
| 543 | # registries which have implemented wildcard A records. |
| 544 | #bogus-nxdomain=64.94.110.11 |
| 545 | |
Simon Kelley | 1cff166 | 2004-03-12 08:12:58 +0000 | [diff] [blame] | 546 | # If you want to fix up DNS results from upstream servers, use the |
| 547 | # alias option. This only works for IPv4. |
| 548 | # This alias makes a result of 1.2.3.4 appear as 5.6.7.8 |
| 549 | #alias=1.2.3.4,5.6.7.8 |
| 550 | # and this maps 1.2.3.x to 5.6.7.x |
| 551 | #alias=1.2.3.0,5.6.7.0,255.255.255.0 |
Simon Kelley | 73a08a2 | 2009-02-05 20:28:08 +0000 | [diff] [blame] | 552 | # and this maps 192.168.0.10->192.168.0.40 to 10.0.0.10->10.0.0.40 |
| 553 | #alias=192.168.0.10-192.168.0.40,10.0.0.0,255.255.255.0 |
Simon Kelley | f6b7dc4 | 2005-01-23 12:06:08 +0000 | [diff] [blame] | 554 | |
| 555 | # Change these lines if you want dnsmasq to serve MX records. |
| 556 | |
| 557 | # Return an MX record named "maildomain.com" with target |
| 558 | # servermachine.com and preference 50 |
| 559 | #mx-host=maildomain.com,servermachine.com,50 |
| 560 | |
| 561 | # Set the default target for MX records created using the localmx option. |
| 562 | #mx-target=servermachine.com |
| 563 | |
| 564 | # Return an MX record pointing to the mx-target for all local |
| 565 | # machines. |
| 566 | #localmx |
| 567 | |
| 568 | # Return an MX record pointing to itself for all local machines. |
| 569 | #selfmx |
| 570 | |
Simon Kelley | b8187c8 | 2005-11-26 21:46:27 +0000 | [diff] [blame] | 571 | # Change the following lines if you want dnsmasq to serve SRV |
Simon Kelley | f6b7dc4 | 2005-01-23 12:06:08 +0000 | [diff] [blame] | 572 | # records. These are useful if you want to serve ldap requests for |
| 573 | # Active Directory and other windows-originated DNS requests. |
| 574 | # See RFC 2782. |
Simon Kelley | b8187c8 | 2005-11-26 21:46:27 +0000 | [diff] [blame] | 575 | # You may add multiple srv-host lines. |
Simon Kelley | f6b7dc4 | 2005-01-23 12:06:08 +0000 | [diff] [blame] | 576 | # The fields are <name>,<target>,<port>,<priority>,<weight> |
| 577 | # If the domain part if missing from the name (so that is just has the |
| 578 | # service and protocol sections) then the domain given by the domain= |
Simon Kelley | 0a85254 | 2005-03-23 20:28:59 +0000 | [diff] [blame] | 579 | # config option is used. (Note that expand-hosts does not need to be |
| 580 | # set for this to work.) |
Simon Kelley | f6b7dc4 | 2005-01-23 12:06:08 +0000 | [diff] [blame] | 581 | |
| 582 | # A SRV record sending LDAP for the example.com domain to |
Simon Kelley | 8ef5ada | 2010-06-03 19:42:45 +0100 | [diff] [blame] | 583 | # ldapserver.example.com port 389 |
Simon Kelley | f6b7dc4 | 2005-01-23 12:06:08 +0000 | [diff] [blame] | 584 | #srv-host=_ldap._tcp.example.com,ldapserver.example.com,389 |
| 585 | |
| 586 | # A SRV record sending LDAP for the example.com domain to |
Simon Kelley | 8ef5ada | 2010-06-03 19:42:45 +0100 | [diff] [blame] | 587 | # ldapserver.example.com port 389 (using domain=) |
Simon Kelley | f6b7dc4 | 2005-01-23 12:06:08 +0000 | [diff] [blame] | 588 | #domain=example.com |
| 589 | #srv-host=_ldap._tcp,ldapserver.example.com,389 |
| 590 | |
| 591 | # Two SRV records for LDAP, each with different priorities |
| 592 | #srv-host=_ldap._tcp.example.com,ldapserver.example.com,389,1 |
| 593 | #srv-host=_ldap._tcp.example.com,ldapserver.example.com,389,2 |
| 594 | |
| 595 | # A SRV record indicating that there is no LDAP server for the domain |
Simon Kelley | b8187c8 | 2005-11-26 21:46:27 +0000 | [diff] [blame] | 596 | # example.com |
Simon Kelley | f6b7dc4 | 2005-01-23 12:06:08 +0000 | [diff] [blame] | 597 | #srv-host=_ldap._tcp.example.com |
| 598 | |
Simon Kelley | 832af0b | 2007-01-21 20:01:28 +0000 | [diff] [blame] | 599 | # The following line shows how to make dnsmasq serve an arbitrary PTR |
| 600 | # record. This is useful for DNS-SD. (Note that the |
| 601 | # domain-name expansion done for SRV records _does_not |
| 602 | # occur for PTR records.) |
| 603 | #ptr-record=_http._tcp.dns-sd-services,"New Employee Page._http._tcp.dns-sd-services" |
Simon Kelley | 0a85254 | 2005-03-23 20:28:59 +0000 | [diff] [blame] | 604 | |
| 605 | # Change the following lines to enable dnsmasq to serve TXT records. |
| 606 | # These are used for things like SPF and zeroconf. (Note that the |
Simon Kelley | b8187c8 | 2005-11-26 21:46:27 +0000 | [diff] [blame] | 607 | # domain-name expansion done for SRV records _does_not |
Simon Kelley | 0a85254 | 2005-03-23 20:28:59 +0000 | [diff] [blame] | 608 | # occur for TXT records.) |
| 609 | |
| 610 | #Example SPF. |
Simon Kelley | 832af0b | 2007-01-21 20:01:28 +0000 | [diff] [blame] | 611 | #txt-record=example.com,"v=spf1 a -all" |
Simon Kelley | 0a85254 | 2005-03-23 20:28:59 +0000 | [diff] [blame] | 612 | |
| 613 | #Example zeroconf |
| 614 | #txt-record=_http._tcp.example.com,name=value,paper=A4 |
| 615 | |
Simon Kelley | 9009d74 | 2008-11-14 20:04:27 +0000 | [diff] [blame] | 616 | # Provide an alias for a "local" DNS name. Note that this _only_ works |
| 617 | # for targets which are names from DHCP or /etc/hosts. Give host |
| 618 | # "bert" another name, bertrand |
| 619 | #cname=bertand,bert |
Simon Kelley | 0a85254 | 2005-03-23 20:28:59 +0000 | [diff] [blame] | 620 | |
Simon Kelley | 9e4abcb | 2004-01-22 19:47:41 +0000 | [diff] [blame] | 621 | # For debugging purposes, log each DNS query as it passes through |
| 622 | # dnsmasq. |
| 623 | #log-queries |
| 624 | |
Simon Kelley | f2621c7 | 2007-04-29 19:47:21 +0100 | [diff] [blame] | 625 | # Log lots of extra information about DHCP transactions. |
| 626 | #log-dhcp |
| 627 | |
Simon Kelley | cf568a3 | 2012-10-09 20:51:31 +0100 | [diff] [blame] | 628 | # Include another lot of configuration options. |
Simon Kelley | 33820b7 | 2004-04-03 21:10:00 +0100 | [diff] [blame] | 629 | #conf-file=/etc/dnsmasq.more.conf |
Simon Kelley | 1697269 | 2006-10-16 20:04:18 +0100 | [diff] [blame] | 630 | #conf-dir=/etc/dnsmasq.d |