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Jun 28, 2019 DNS Server in Ubuntu / Debian | allaboutlinux.eu Dec 04, 2015 Setting up a Caching DNS Server in Ubuntu Server 14.04 Jan 07, 2015
Service - Domain Name Service (DNS) | Server - Ubuntu
Ubuntu 18.04 LTS uses a local DNS server and caches DNS queries by default. Ubuntu 18.04 LTS uses systemd for this purpose. You can run the following command to check how many DNS entries are cached and many other information on Ubuntu 18.04 LTS: $ sudo systemd-resolve --statistics.
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How To Configure BIND as a Private Network DNS Server on Aug 12, 2014