version 2.69 Implement dynamic interface discovery on *BSD. This allows the contructor: syntax to be used in dhcp-range for DHCPv6 on the BSD platform. Thanks to Matthias Andree for valuable research on how to implement this. Fix infinite loop associated with some --bogus-nxdomain configs. Thanks fogobogo for the bug report. Fix missing RA RDNS option with configuration like --dhcp-option=option6:23,[::] Thanks to Tsachi Kimeldorfer for spotting the problem. Add [fd00::] and [fe80::] as special addresses in DHCPv6 options, analogous to [::]. [fd00::] is replaced with the actual ULA of the interface on the machine running dnsmasq, [fe80::] with the link-local address. Thanks to Tsachi Kimeldorfer for championing this. DNSSEC validation and caching. Dnsmasq needs to be compiled with this enabled, with make dnsmasq COPTS=-DHAVE_DNSSEC this add dependencies on the nettle crypto library and the gmp maths library. It's possible to have these linked statically with make dnsmasq COPTS='-DHAVE_DNSSEC -DHAVE_DNSSEC_STATIC' which bloats the dnsmasq binary, but saves the size of the shared libraries which are much bigger. To enable, DNSSEC, you will need a set of trust-anchors. Now that the TLDs are signed, this can be the keys for the root zone, and for convenience they are included in trust-anchors.conf in the dnsmasq distribution. You should of course check that these are legitimate and up-to-date. So, adding conf-file=/path/to/trust-anchors.conf dnssec to your config is all thats needed to get things working. The upstream nameservers have to be DNSSEC-capable too, of course. Many ISP nameservers aren't, but the Google public nameservers (220.127.116.11 and 18.104.22.168) are. When DNSSEC is configured, dnsmasq validates any queries for domains which are signed. Query results which are bogus are replaced with SERVFAIL replies, and results which are correctly signed have the AD bit set. In addition, and just as importantly, dnsmasq supplies correct DNSSEC information to clients which are doing their own validation, and caches DNSKEY, DS and RRSIG records, which significantly improve the performance of downstream validators. Setting --log-queries will show DNSSEC in action. If a domain is returned from an upstream nameserver without DNSSEC signature, dnsmasq by default trusts this. This means that for unsigned zone (still the majority) there is effectively no cost for having DNSSEC enabled. Of course this allows an attacker to replace a signed record with a false unsigned record. This is addressed by the --dnssec-check-unsigned flag, which instructs dnsmasq to prove that an unsigned record is legitimate, by finding a secure proof that the zone containing the record is not signed. Doing this has costs (typically one or two extra upstream queries). It also has a nasty failure mode if dnsmasq's upstream nameservers are not DNSSEC capable. Without --dnssec-check-unsigned using such an upstream server will simply result in not queries being validated; with --dnssec-check-unsigned enabled and a DNSSEC-ignorant upstream server, _all_ queries will fail. Note that DNSSEC requires that the local time is valid and accurate, if not then DNSSEC validation will fail. NTP should be running. This presents a problem for routers without a battery-backed clock. To set the time needs NTP to do DNS lookups, but lookups will fail until NTP has run. To address this, there's a flag, --dnssec-no-timecheck which disables the time checks (only) in DNSSEC. When dnsmasq is started and the clock is not synced, this flag should be used. As soon as the clock is synced, SIGHUP dnsmasq. The SIGHUP clears the cache of partially-validated data and resets the no-timecheck flag, so that all DNSSEC checks henceforward will be complete. The development of DNSSEC in dnsmasq was started by Giovanni Bajo, to whom huge thanks are owed. It has been supported by Comcast, whose techfund grant has allowed for an invaluable period of full-time work to get it to a workable state. Add --rev-server. Thanks to Dave Taht for suggesting this. Add --servers-file. Allows dynamic update of upstream servers full access to configuration. Add --local-service. Accept DNS queries only from hosts whose address is on a local subnet, ie a subnet for which an interface exists on the server. This option only has effect if there are no --interface --except-interface, --listen-address or --auth-server options. It is intended to be set as a default on installation, to allow unconfigured installations to be useful but also safe from being used for DNS amplification attacks. Fix crashes in cache_get_cname_target() when dangling CNAMEs encountered. Thanks to Andy and the rt-n56u project for find this and helping to chase it down. Fix wrong RCODE in authoritative DNS replies to PTR queries. The correct answer was included, but the RCODE was set to NXDOMAIN. Thanks to Craig McQueen for spotting this. Make statistics available as DNS queries in the .bind TLD as well as logging them.