DNS/Knot-DNS/ubuntuについて、ここに記述してください。

https://www.knot-dns.cz/docs/1.6/html/installation.html

Installing Knot DNS packages on Ubuntu

Prepackaged version of Knot DNS can be found in Ubuntu from version 12.10 (Quantal Quetzal).

In addition to the package included in the main archive, we provide Personal Package Archive (PPA) as an option to upgrade to the last stable version of Knot DNS or to install it on older versions of Ubuntu Linux. Adding official PPA repository for Knot DNS

To start installing and using software from a Personal Package Archive, you first need to tell Ubuntu where to find the PPA:

$ sudo add-apt-repository ppa:cz.nic-labs/knot-dns
$ sudo apt-get update
$ sudo apt-get install knot

Running this sequence of commands will ensure that you will install Knot DNS on your system and keep it up-to-date in the future, when new versions are released.

dpkg-statoverride: エラー: 文法エラー: statoverride ファイルに未知のグループ 'knot' があります
dpkg: パッケージ knot の処理中にエラーが発生しました (--configure):