The lame-ttl cache is implemented in ADB as per-server locked
linked-list "indexed" with <qname,qtype>. This list has to be walked
every time there's a new query or new record added into the lame cache.
Determined attacker can use this to degrade performance of the resolver.
Resolver testing has shown that disabling the lame cache has little
impact on the resolver performance and it's a minimal viable defense
against this kind of attack.
The ReferenceRole class is only available in Sphinx >= 2.0.0, which
makes building BIND 9 documentation impossible with older Sphinx
versions:
Running Sphinx v1.7.6
Configuration error:
There is a programable error in your configuration file:
Traceback (most recent call last):
File "/usr/lib/python3.6/site-packages/sphinx/config.py", line 161, in __init__
execfile_(filename, config)
File "/usr/lib/python3.6/site-packages/sphinx/util/pycompat.py", line 150, in execfile_
exec_(code, _globals)
File "conf.py", line 21, in <module>
from sphinx.util.docutils import ReferenceRole
ImportError: cannot import name 'ReferenceRole'
Work around the problem by defining a stub version of the ReferenceRole
class if the latter cannot be imported. This allows documentation
(without GitLab hyperlinks in release notes) to be built with older
Sphinx versions.
(cherry picked from commit 8f8bbae3fc)
The 55636ab5 commit made some changes in the reference manual
regarding catalog zones which do not actually correspond to reality
for the v9_16 branch.
This commit reverts those changes.
The "zone-max-ttl" option inside a "dnssec-policy" is not used to cap
the TTLs in a zone, only yo calculate key rollover timings.
(cherry picked from commit 4e3ba81696)
The Debian 10 (buster) Docker image, which GitLab CI uses for building
documentation, currently contains the following package versions:
- Sphinx 4.2.0
- sphinx-rtd-theme 1.0.0
- docutils 0.17.1
Regenerate the man pages to match contents produced in a Sphinx
environment using the above package versions. This is necessary to
prevent the "docs" GitLab CI job from failing.
(cherry picked from commit ffd1e71fdf)
Address the following warnings reported by PyLint 2.10.2:
************* Module conf
doc/arm/conf.py:90:10: W1406: The u prefix for strings is no longer necessary in Python >=3.0 (redundant-u-string-prefix)
doc/arm/conf.py:92:12: W1406: The u prefix for strings is no longer necessary in Python >=3.0 (redundant-u-string-prefix)
doc/arm/conf.py:93:9: W1406: The u prefix for strings is no longer necessary in Python >=3.0 (redundant-u-string-prefix)
doc/arm/conf.py:139:31: W1406: The u prefix for strings is no longer necessary in Python >=3.0 (redundant-u-string-prefix)
doc/man/conf.py:33:10: W1406: The u prefix for strings is no longer necessary in Python >=3.0 (redundant-u-string-prefix)
doc/man/conf.py:38:12: W1406: The u prefix for strings is no longer necessary in Python >=3.0 (redundant-u-string-prefix)
doc/man/conf.py:39:9: W1406: The u prefix for strings is no longer necessary in Python >=3.0 (redundant-u-string-prefix)
(cherry picked from commit e5944bc610)
Discourage the single source port on general level and document that the
source port cannot be same as the listening port. This applies to
query-source, transfer-source, notify-source, parental-source, and their
respective IPv6 counterparts.
(cherry picked from commit c9a17c878a)
Document that the interval on new RRSIG records is randomally
chosen between the limits specified by sig-validity-interval.
document the operatations when this occurs.
(cherry picked from commit e65ce00f11)
In the "Migrating from NSEC to NSEC3" section, it says:
dnssec-policy "standard" {
nsec3param iterations optout no salt-length 16;
};
There should be an integer after "iterations". Based on the following
text, the number of iterations should be 10.
(cherry picked from commit 9e109191cc)
