Firewalls, routers, DNS server, Email server, all of these running CARP to cluster these functions and prevent service interruption.

Source: https://tech.slashdot.org/story/23/04/10/1632219/openbsd-73-released?utm_source=rss1.0mainlinkanon&utm_medium=feed

Generally speaking, the DNS server that you use will be established automatically by your ISP when you connect to the internet.

Source: https://www.networkworld.com/article/3268449/what-is-dns-and-how-does-it-work.html

Set up your own DNS server on a pi.

Source: https://tech.slashdot.org/story/23/04/19/1741250/windows-11-start-menu-ads-look-set-to-get-even-worse?utm_source=rss1.0mainlinkanon&utm_medium=feed

Unless a DNS server uses an uncommon extension named DNSSEC, you can’t verify the integrity of a DNS response.

Source: https://macaudailytimes.com.mo/banning-tiktok-could-weaken-personal-cybersecurity.html?utm_source=rss&utm_medium=rss&utm_campaign=banning-tiktok-could-weaken-personal-cybersecurity

When it comes to finding the fastest DNS server, there are several options available.

Source: https://www.devicemag.com/dns-benchmark/