fixes in unbound

templates/unbound.conf.j2

@@ -0,0 +1,30 @@
+server:
+  interface: {{ query('community.general.dig', inventory_hostname, 'qtype=A') | first }}
+  port: 5335
+  access-control: 192.168.0.0/16 allow_snoop
+  verbosity: 2
+
+  use-syslog: no
+  logfile: "/var/log/unbound/unbound.log"
+  log-time-ascii: yes
+  statistics-cumulative: yes
+
+# Optimization
+  num-threads: 12
+  msg-cache-slabs: 8
+  rrset-cache-slabs: 8
+  infra-cache-slabs: 8
+  key-cache-slabs: 8
+
+  rrset-cache-size: 250m
+  msg-cache-size: 125m
+
+  so-reuseport: yes
+
+  minimal-responses: yes
+
+  prefetch: yes
+  prefetch-key: yes
+
+  serve-expired: yes
+  cache-max-ttl: 3600