Knot Resolver

Knot Resolver is a full (recursive), caching DNS resolver. It is designed to scale from small home-office networks to providing DNS servers at the scale of ISPs. Knot Resolver supports DNSSEC, which is enabled by default.

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Installation

Install the knot-resolver package.

Configuration

Start/enable kresd@1.service.

To use Knot Resolver as the local resolver, configure 127.0.0.1 as your nameserver (see see Domain name resolution).

By default, the resolver will listen on localhost, port 53. If the resolver should be accessible from other hosts, configure other network interfaces in /etc/knot-resolver/kresd.conf with net.listen(). Refer to Knot Resolver documentation for more information.

If the resolver should respect entries from the file, add a line to /etc/knot-resolver/kresd.conf.

Knot Resolver and dnsmasq

If dnsmasq is used for managing DHCP, then advertising a kresd instance works like any other external DNS server would: By adding an line to the dnsmasq configuration file.

Note that a default configuration of dnsmasq will clash with the default configuration of kresd, since both will attempt to use port 53. Disable the dnsmasq DNS functionality (), or assign a different port to either service.

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See also
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