records with an incorrect class to be be accepted,
triggering a REQUIRE failure when those records
were subsequently cached. (CVE-2015-8000) [RT #4098]
4235. [func] Added support in named for "dnstap", a fast method of
capturing and logging DNS traffic, and a new command
"dnstap-read" to read a dnstap log file. Use
"configure --enable-dnstap" to enable this
feature (note that this requires libprotobuf-c
and libfstrm). See the ARM for configuration details.
Thanks to Robert Edmonds of Farsight Security.
[RT #40211]
4224. [func] Added support for "dyndb", a new interface for loading
zone data from an external database, developed by
Red Hat for the FreeIPA project.
DynDB drivers fully implement the BIND database
API, and are capable of significantly better
performance and functionality than DLZ drivers,
while taking advantage of advanced database
features not available in BIND such as multi-master
replication.
Thanks to Adam Tkac and Petr Spacek of Red Hat.
[RT #35271]
4152. [func] Implement DNS COOKIE option. This replaces the
experimental SIT option of BIND 9.10. The following
named.conf directives are available: send-cookie,
cookie-secret, cookie-algorithm, nocookie-udp-size
and require-server-cookie. The following dig options
are available: +[no]cookie[=value] and +[no]badcookie.
[RT #39928]
3938. [func] Added quotas to be used in recursive resolvers
that are under high query load for names in zones
whose authoritative servers are nonresponsive or
are experiencing a denial of service attack.
- "fetches-per-server" limits the number of
simultaneous queries that can be sent to any
single authoritative server. The configured
value is a starting point; it is automatically
adjusted downward if the server is partially or
completely non-responsive. The algorithm used to
adjust the quota can be configured via the
"fetch-quota-params" option.
- "fetches-per-zone" limits the number of
simultaneous queries that can be sent for names
within a single domain. (Note: Unlike
"fetches-per-server", this value is not
self-tuning.)
- New stats counters have been added to count
queries spilled due to these quotas.
See the ARM for details of these options. [RT #37125]
experimental SIT option of BIND 9.10. The following
named.conf directives are avaliable: send-cookie,
cookie-secret, cookie-algorithm and nocookie-udp-size.
The following dig options are available:
+[no]cookie[=value] and +[no]badcookie. [RT #39928]
4121. [bug] When updating a response-policy zone via AXFR,
summary data about other policy zones could fall
out of sync. Ultimately this could trigger an
assertion failure in rpz.c. [RT #39567]
4120. [bug] A bug in RPZ could cause the server to crash if
policy zones were updated while recursion was
pending for RPZ processing of an active query.
[RT #39415]
