linux bind 版本升级,DNS BIND 各产品线更新9.9.4/9.8.6

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DNS BIND今天放出各产品线的最新版本9.9.4,9.8.6.2013-09-20.进过2个RC.之前的版本是2013-05-28的9.9.3/9.8.5。尽管BIND 10已经发布1.1，但因为改动太大，可能更多使用的还是BIND9.9.9.4支持了RRL防止DOS攻击。

完全改进：

Security Fixes

Previously an error in bounds checking on the private type

'keydata' could be used to deny service through a deliberately

triggerable REQUIRE failure (CVE-2013-4854).  \[RT \#34238\]

Prevents exploitation of a runtime\_check which can crash named

when satisfying a recursive query for particular malformed zones.

(CVE-2013-3919) \[RT \#33690\]

New Features

Added Response Rate Limiting (RRL) functionality to reduce the

effectiveness of DNS as an amplifier for reflected denial-of-service

attacks by rate-limiting substantially-identical responses. \[RT

\#28130\]

Feature Changes

rndc status now also shows the build-id. \[RT \#20422\]

Improved OPT pseudo-record processing to make it easier to support

new EDNS options. \[RT \#34414\]

"configure" now finishes by printing a summary of optional BIND

features and whether they are active or inactive. ("configure

\--enable-full-report" increases the verbosity of the summary.)

\[RT \#31777\]

Addressed compatibility issues with newer versions of Microsoft

Visual Studio. \[RT \#33916\]

Improved the 'rndc' man page. \[RT \#33506\]

'named -g' now no longer works with an invalid logging configuration.

\[RT \#33473\]

The default (and minimum) value for tcp-listen-queue is now 10

instead of 3.  This is a subtle control setting (not applicable

to all OS  environments).  When there is a high rate of inbound

TCP connections, it  controls how many connections can be queued

before they are accepted by named.  Once this limit is exceeded,

new TCP connections will be rejected.  Note however that a value

of 10 does not imply a strict limit of 10 queued TCP connections

\- the impact of changing this configuration setting will be

OS-dependent.  Larger values for tcp-listen queue will permit

more pending tcp connections, which may be needed where there

is a high rate of TCP-based traffic (for example in a dynamic

environment where there are frequent zone updates and transfers).

For most production servers the new default value of 10 should

be adequate.  \[RT \#33029\]

Added support for OpenSSL versions 0.9.8y, 1.0.0k, and 1.0.1e

with PKCS\#11. \[RT \#33463\]

Added logging messages on slave servers when they forward DDNS

updates to a master. \[RT \#33240\]

Changed the logging category for RRL events from 'queries' to

'query-errors'. \[RT \#33540\]

Bug Fixes

Fixed the "allow-query-on" option to correctly check the destination

address. \[RT \#34590\]

Fix forwarding for  forward only "zones" beneath automatic empty

zones. \[RT \#34583\]

Fix DNSSEC auto maintenance so signatures can be removed from a

zone with only KSK keys for an algorithm. \[RT \#34439\]

Fix DNSSEC auto maintenance so signatures from newly inactive

keys are removed (when publishing a new key while deactivating

another key at the same time). \[RT \#32178\]

Remove bogus warning log message about missing signatures when

receiving a query for a SIG record. \[RT \#34600\]

Fix Response Policy Zones on slave servers so new RPZ changes

take effect. \[RT \#34450\]

Fix the "zone-statistics" option to work with the default

traditional statistics (not new "--enable-newstats" feature).

\[RT \#34466\]

named could crash when deleting inline-signing zones with "rndc

delzone". \[RT \#34066\]

Improved resistance to a theoretical authentication attack based

on differential timing.  \[RT \#33939\]

named was failing to answer queries during "rndc reload" \[RT

\#34098\]

win32: Some executables had been omitted from the installer. \[RT

\#34116\]

fixed a broken 'Invalid keyfile' error message in dnssec-keygen.

\[RT \#34045\]

The build of BIND now installs isc/stat.h so that it's available

to /isc/file.h when building other applications that reference

these header files - for example dnsperf (see Debian bug ticket

\#692467).  \[RT \#33056\]

Better handle failures building XML for stats channel responses.

\[RT \#33706\]

Fixed a memory leak in GSS-API processing. \[RT \#33574\]

Fixed an acache-related race condition that could cause a crash.

\[RT \#33602\]

rndc now properly fails when given an invalid '-c' argument. \[RT

\#33571\]

Fixed an issue with the handling of zero TTL records that could

cause improper SERVFAILs. \[RT \#33411\]

Fixed a crash-on-shutdown race condition with DNSSEC validation.

\[RT \#33573\]

Corrected the way that "rndc addzone" and "rndc delzone" handle

non-standard characters in zone names. \[RT \#33419\]

Adjusted RRL behavior for recursive queries to defer rate-limiting

until after recursion is complete.  Also uses correct rcode for

slipped NXDOMAIN responses. \[RT \#33604\]

Previously, BIND could erroneously report a missing file

specification when using inline slave zones.  \[RT \#33662\]

linux bind 版本升级,DNS BIND 各产品线更新9.9.4/9.8.6

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