server:
  interface: 127.0.0.1
  port: 5335

  access-control: 127.0.0.0/8 allow

  # IPv4 / IPv6-settings
  do-ip4: yes
  do-udp: yes
  do-tcp: yes

  # Set number of threads to use
  num-threads: 2

  # Hide DNS Server info
  hide-identity: yes
  hide-version: yes

  # Limit DNS Fraud and use DNSSEC
  harden-glue: yes
  harden-dnssec-stripped: yes
  harden-referral-path: yes
  use-caps-for-id: yes
  harden-algo-downgrade: yes
  qname-minimisation: yes

  trust-anchor-file: "/usr/share/dns/root.key"

  # Add an unwanted reply threshold to clean the cache and avoid when possible a DNS Poisoning
  unwanted-reply-threshold: 10000000

  # Minimum lifetime of cache entries in seconds
  cache-min-ttl: 300

  # Maximum lifetime of cached entries
  cache-max-ttl: 28800

  # Prefetch
  prefetch: yes
  prefetch-key: yes

  # Optimisations
  msg-cache-slabs: 4
  rrset-cache-slabs: 4
  infra-cache-slabs: 4
  key-cache-slabs: 4

  serve-expired: yes
  serve-expired-ttl: 900

  # Increase memory size of the cache
  rrset-cache-size: 256m
  msg-cache-size: 128m

  # Increase buffer size so that no messages are lost in traffic spikes
  so-rcvbuf: 1m

  # Private addresses
  private-address: 192.168.0.0/16
  private-address: 169.254.0.0/16
  private-address: 172.16.0.0/12
  private-address: 10.0.0.0/8
  private-address: fd00::/8
  private-address: fe80::/10