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3: <TITLE> Dnsmasq - network services for small networks.</TITLE>
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11: <td align="middle" valign="middle"><h1>Dnsmasq</h1></td>
12: <td align="right" valign="middle"><img border="0" src="http://www.thekelleys.org.uk/dnsmasq/images/icon.png" /></td></tr>
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14: Dnsmasq provides network infrastructure for small networks: DNS, DHCP, router advertisement and network boot. It is designed to be
15: lightweight and have a small footprint, suitable for resource constrained routers and firewalls. It has also been widely used
16: for tethering on smartphones and portable hotspots, and to support virtual networking in virtualisation frameworks.
17: Supported platforms include Linux (with glibc and uclibc), Android, *BSD, and Mac OS X. Dnsmasq is included in most
18: Linux distributions and the ports systems of FreeBSD, OpenBSD and NetBSD. Dnsmasq provides full IPv6 support.
19:
20: <P>
21: The DNS subsystem provides a local DNS server for the network, with forwarding of all query types to upstream recursive DNS servers and
22: cacheing of common record types (A, AAAA, CNAME and PTR, also DNSKEY and DS when DNSSEC is enabled).
23: <DIR>
24: <LI>Local DNS names can be defined by reading /etc/hosts, by importing names from the DHCP subsystem, or by configuration of a wide range of useful record types.</LI>
25: <LI>Upstream servers can be configured in a variety of convenient ways, including dynamic configuration as these change on moving upstream network.
26: <LI>Authoritative DNS mode allows local DNS names may be exported to zone in the global DNS. Dnsmasq acts as authoritative server for this zone, and also provides
27: zone transfer to secondaries for the zone, if required.</LI>
28: <LI>DNSSEC validation may be performed on DNS replies from upstream nameservers, providing security against spoofing and cache poisoning.</LI>
29: <LI>Specified sub-domains can be directed to their own upstream DNS servers, making VPN configuration easy.</LI>
30: <LI>Internationalised domain names are supported.
31: </DIR>
32: <P>
33: The DHCP subsystem supports DHCPv4, DHCPv6, BOOTP and PXE.
34: <DIR>
35: <LI> Both static and dynamic DHCP leases are supported, along with stateless mode in DHCPv6.</LI>
36: <LI> The PXE system is a full PXE server, supporting netboot menus and multiple architecture support. It
37: includes proxy-mode, where the PXE system co-operates with another DHCP server.</LI>
38: <LI> There is a built in read-only TFTP server to support netboot.</LI>
39: <LI> Machines which are configured by DHCP have their names automatically
40: included in the DNS and the names can specified by each machine or
41: centrally by associating a name with a MAC address or UID in the dnsmasq
42: configuration file.</LI>
43: </DIR>
44: <P>
45: The Router Advertisement subsystem provides basic autoconfiguration for IPv6 hosts. It can be used stand-alone or in conjunction with DHCPv6.
46: <DIR>
47: <LI> The M and O bits are configurable, to control hosts' use of DHCPv6.</LI>
48: <LI> Router advertisements can include the RDNSS option.</LI>
49: <LI> There is a mode which uses name information from DHCPv4 configuration to provide DNS entries
50: for autoconfigured IPv6 addresses which would otherwise be anonymous.</LI>
51: </DIR>
52: <P>
53:
54: For extra compactness, unused features may be omitted at compile time.
55:
56:
57: <H2>Get code.</H2>
58:
59: <A HREF="http://www.thekelleys.org.uk/dnsmasq/">Download</A> dnsmasq here.
60: The tarball includes this documentation, source, and manpage.
61: There is also a <A HREF="CHANGELOG"> CHANGELOG</A> and a <A HREF="FAQ">FAQ</A>.
62:
63: Dnsmasq has a git repository which contains the complete release
64: history of version 2 and development history from 2.60. You can
65: <A HREF="http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=summary">browse</A>
66: the repo, or get a copy using git protocol with the command
67:
68: <PRE><TT>git clone git://thekelleys.org.uk/dnsmasq.git </TT></PRE>
69:
70: <H2>License.</H2>
71: Dnsmasq is distributed under the GPL, version 2 or version 3 at your discretion. See the files COPYING and COPYING-v3 in the distribution
72: for details.
73:
74: <H2>Contact.</H2>
75: There is a dnsmasq mailing list at <A
76: HREF="http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss">
77: http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss</A> which should be the
78: first location for queries, bugreports, suggestions etc.
79: You can contact me at <A
80: HREF="mailto:simon@thekelleys.org.uk">simon@thekelleys.org.uk</A>.
81:
82: <H2>Donations.</H2>
83: Dnsmasq is mainly written and maintained by Simon Kelley. For most of its life, dnsmasq has been a spare-time project.
84: These days I'm working on it as my main activity.
85: I don't have an employer or anyone who pays me regularly to work on dnsmasq. If you'd like to make
86: a contribution towards my expenses, please use the donation button below.
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