Unbound

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Unbound is a validating, recursive, and caching DNS resolver.

Installation

Install unbound, and expat which is dependency for DNSSEC:

pacman -S unbound expat

Basic configuration

Unbound configuration

Unbound is easy to configure. Following configuration placed in /etc/unbound/unbound.conf is enough to run on both IPv4 and IPv6 without access restrictions:

server:
  username: "unbound"
  directory: "/etc/unbound"
  use-syslog: yes
  interface: 0.0.0.0
  interface: ::0
  verbosity: 1

To use specific servers for default forward zone (all queries will be forwarded to them, and then cached) add this to the configuration file:

forward-zone:
  name: "."
  forward-addr: 208.67.222.222
  forward-addr: 208.67.220.220

This will make unbound use OpenDNS servers as forward zone.

Adding unbound to boot process

Edit /etc/rc.conf (See also rc.conf):

DAEMONS=(.. unbound ..)

Place unbound before daemons that require network access.

Set /etc/resolv.conf to use the local DNS server

Edit /etc/resolv.conf (See also resolv.conf):

nameserver 127.0.0.1