- update unbound.conf to 1.6.14 feature set

Allow ipsecmod to be enabled via libreswan unbound-control command

unbound.conf

@@ -38,7 +38,7 @@ server:
 	extended-statistics: yes
 
 	# number of threads to create. 1 disables threading.
-	num-threads: 2
+	num-threads: 4
 
 	# specify the interfaces to answer queries from by ip-address.
 	# The default is to listen to localhost (127.0.0.1 and ::1).
@@ -121,7 +121,7 @@ server:
 	# so-sndbuf: 0
 
 	# use SO_REUSEPORT to distribute queries over threads.
-	# so-reuseport: no
+	so-reuseport: yes
 
 	# use IP_TRANSPARENT so the interface: addresses can be non-local
 	# and you can config non-existing IPs that are going to work later on
@@ -337,12 +337,12 @@ server:
 	# enable to not answer id.server and hostname.bind queries.
 	# hide-identity: no
 
-	# enable to not answer trustanchor.unbound queries.
-	# hide-trustanchor: no
-
 	# enable to not answer version.server and version.bind queries.
 	# hide-version: no
 
+	# enable to not answer trustanchor.unbound queries.
+	# hide-trustanchor: no
+
 	# the identity to report. Leave "" or default to return hostname.
 	# identity: ""
 
@@ -459,7 +459,7 @@ server:
 
 	# module configuration of the server. A string with identifiers
 	# separated by spaces. Syntax: "[dns64] [validator] iterator"
-	# module-config: "validator iterator"
+	module-config: "ipsecmod validator iterator"
 
 	# File with trusted keys, kept uptodate using RFC5011 probes,
 	# initial file like trust-anchor-file, then it stores metadata.
@@ -538,7 +538,7 @@ server:
 
 	# Serve expired reponses from cache, with TTL 0 in the response,
 	# and then attempt to fetch the data afresh.
-	# serve-expired: no
+	serve-expired: yes
 
 	# Have the validator log failed validations for your diagnosis.
 	# 0: off. 1: A line per failed user query. 2: With reason and bad IP.
@@ -727,6 +727,14 @@ server:
 	# 0 blocks when ip is ratelimited, otherwise let 1/xth traffic through
 	# ip-ratelimit-factor: 10
 
+	# IPsec module for Opportunistic IPsec
+	# Libreswan will enable this via unbound-control
+	#ipsecmod-enabled:yes
+	#ipsecmod-hook:/usr/libexec/ipsec/unbound-hook.py
+	#ipsecmod-ignore-bogus:no
+	#ipsecmod-max-ttl:3600
+	#ipsecmod-whitelist:libreswan.org
+
 # Python config section. To enable:
 # o use --with-pythonmodule to configure before compiling.
 # o list python in the module-config string (above) to enable.