server:
  interface: {{ unbound_ip4 }}
  port: {{ unbound_port }}
  access-control: {{ unbound_ip4_subnet }} allow_snoop
  verbosity: 2

  logfile: "/var/log/unbound/unbound.log"
  log-time-ascii: yes
  statistics-cumulative: yes

# Optimization
  num-threads: 3
  msg-cache-slabs: 2
  rrset-cache-slabs: 2
  infra-cache-slabs: 2
  key-cache-slabs: 2

  rrset-cache-size: 257051306
  msg-cache-size: 128525653

  so-reuseport: yes

  minimal-responses: yes

  prefetch: yes
  prefetch-key: yes

  serve-expired: yes
  cache-max-ttl: 3600