来源:dnsmasq官网 发布日期:2018-10-18 阅读次数:376 评论:0





感知时间:2019-12-05 19:41:36






Add support for RFC 4039 DHCP rapid commit. Thanks to Ashram Method
for the initial patch and motivation.

Alter the default for dnssec-check-unsigned. Versions of
dnsmasq prior to 2.80 defaulted to not checking unsigned
replies, and used --dnssec-check-unsigned to switch
this on. Such configurations will continue to work as before,
but those which used the default of no checking will need to be
altered to explicitly select no checking. The new default is
because switching off checking for unsigned replies is
inherently dangerous. Not only does it open the possiblity of forged
replies, but it allows everything to appear to be working even
when the upstream namesevers do not support DNSSEC, and in this
case no DNSSEC validation at all is occuring.

Fix DHCP broken-ness when --no-ping AND --dhcp-sequential-ip
are set. Thanks to Daniel Miess for help with this.

Add a facilty to store DNS packets sent/recieved in a
pcap-format file for later debugging. The file location
is given by the --dumpfile option, and a bitmap controlling
which packets should be dumped is given by the --dumpmask

Handle the case of both standard and constructed dhcp-ranges on the
same interface better. We don't now contruct a dhcp-range if there's
already one specified. This allows the specified interface to
have different parameters and avoids advertising the same
prefix twice. Thanks to Luis Marsano for spotting this case.

Allow zone transfer in authoritative mode if auth-peer is specified,
even if auth-sec-servers is not. Thanks to Raphaël Halimi for
the suggestion.

Fix bug which sometimes caused dnsmasq to wrongly return answers
without DNSSEC RRs to queries with the do-bit set, but only when
DNSSEC validation was not enabled.
Thanks to Petr Menšík for spotting this.

Fix missing fatal errors with some malformed options
(server, local, address, rebind-domain-ok, ipset, alias).
Thanks to Eugene Lozovoy for spotting the problem.

Fix crash on startup with a --synth-domain which has no prefix.
Introduced in 2.79. Thanks to Andreas Engel for the bug report.

Fix missing EDNS0 section in some replies generated by local
DNS configuration which confused systemd-resolvd. Thanks to
Steve Dodd for characterising the problem.

Add --dhcp-name-match config option.

Add --caa-record config option.

Implement --address=/example.com/# as (more efficient) syntactic
sugar for --address=/example.com/ and
Returning null addresses is a useful technique for ad-blocking.
Thanks to Peter Russell for the suggestion.

Change anti cache-snooping behaviour with queries with the
recursion-desired bit unset. Instead to returning SERVFAIL, we
now always forward, and never answer from the cache. This
allows "dig +trace" command to work.

Include in the example config file a formulation which
stops DHCP clients from claiming the DNS name "wpad".
This is a fix for the CERT Vulnerability VU#598349.









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