ansible/roles/unbound/templates/recursive.conf.j2

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2020-04-13 16:35:09 +02:00
server:
verbosity: 1
use-syslog: yes
logfile: "/var/log/unbound.log"
log-time-ascii: yes
# IP addresses on which to listen.
interface: 10.{{ subnet_ids.ap }}.0.{{ dns_host_suffix }}
interface: 10.{{ subnet_ids.users_wired }}.0.{{ dns_host_suffix }}
interface: 10.{{ subnet_ids.users_wifi }}.0.{{ dns_host_suffix }}
# By default, anything other than localhost is refused.
# Whitelist some subnets:
access-control: 10.{{ subnet_ids.ap }}.0.0/16 allow
access-control: 10.{{ subnet_ids.users_wired }}.0.0/16 allow
access-control: 10.{{ subnet_ids.users_wifi }}.0.0/16 allow
do-ip4: yes
# FIXME: IPv6 deployment... someday...
do-ip6: no
do-udp: yes
do-tcp: yes
num-threads: {{ ansible_processor_vcpus }}
# power of 2 close to num-threads
# TODO: compute this dynamically w/ Ansible
msg-cache-slabs: 16
rrset-cache-slabs: 16
infra-cache-slabs: 16
key-cache-slabs: 16
# Read the root hints from this file
# FIXME: missing file.
# root-hints: "/var/lib/unbound/root.hints"
harden-referral-path: yes
use-caps-for-id: yes
hide-identity: yes
hide-version: yes
harden-glue: yes
harden-dnssec-stripped: yes
# the time to live (TTL) value lower bound, in seconds. Default 0.
# If more than an hour could easily give trouble due to stale data.
# WARNING : against protocol rule but efficient against stupidly too low TTLs
cache-min-ttl: 3600
# the time to live (TTL) value cap for RRsets and messages in the
# cache. Items are not cached for longer. In seconds.
cache-max-ttl: 86400
prefetch: yes
# If nonzero, unwanted replies are not only reported in statistics, but also
# a running total is kept per thread. If it reaches the threshold, a warning
# is printed and a defensive action is taken, the cache is cleared to flush
# potential poison out of it. A suggested value is 10000000, the default is
# 0 (turned off). We think 10K is a good value.
unwanted-reply-threshold: 10000
# Should additional section of secure message also be kept clean of unsecure
# data. Useful to shield the users of this validator from potential bogus
# data in the additional section. All unsigned data in the additional section
# is removed from secure messages.
val-clean-additional: yes
# Log validation failures
val-log-level: 2
private-address: 10.0.0.0/8
# Optimise
# https://unbound.net/documentation/howto_optimise.html
# Faster UDP with multithreading (only on Linux).
so-reuseport: yes
# Taille du cache
rrset-cache-size: 100m
msg-cache-size: 50m
# gestion DNSSEC
harden-below-nxdomain: yes
harden-dnssec-stripped: yes