## DNS Servers
-By default, systemd-resolved uses Cloudflare and Google Public DNS servers
-`1.1.1.1`, `8.8.8.8`, `1.0.0.1`, `8.8.4.4`, `2606:4700:4700::1111`, `2001:4860:4860::8888`, `2606:4700:4700::1001`, `2001:4860:4860::8844`
+By default, systemd-resolved uses Cloudflare, Google, Quad9 and DNS0 Public DNS servers
+`1.1.1.1`, `8.8.8.8`, `9.9.9.9`, `193.110.81.0`, `1.0.0.1`, `8.8.4.4`, `149.112.112.112`, `185.253.5.0`, `2606:4700:4700::1111`, `2001:4860:4860::8888`, `2620:fe::fe`, `2a0f:fc80::`, `2606:4700:4700::1001`, `2001:4860:4860::8844`, `2620:fe::9`, `2a0f:fc81::`
as fallback, if no other DNS configuration is available.
Use `-Ddns-servers=` to direct systemd-resolved to different fallback
description : 'DNS-over-TLS support')
option('dns-servers', type : 'string',
description : 'space-separated list of default DNS servers',
- value : '1.1.1.1#cloudflare-dns.com 8.8.8.8#dns.google 1.0.0.1#cloudflare-dns.com 8.8.4.4#dns.google 2606:4700:4700::1111#cloudflare-dns.com 2001:4860:4860::8888#dns.google 2606:4700:4700::1001#cloudflare-dns.com 2001:4860:4860::8844#dns.google')
+ value : '1.1.1.1#cloudflare-dns.com 8.8.8.8#dns.google 9.9.9.9#dns.quad9.net 193.110.81.0#dns0.eu 1.0.0.1#cloudflare-dns.com 8.8.4.4#dns.google 149.112.112.112#dns.quad9.net 185.253.5.0#dns0.eu 2606:4700:4700::1111#cloudflare-dns.com 2001:4860:4860::8888#dns.google 2620:fe::fe#dns.quad9.net 2a0f:fc80::#dns0.eu 2606:4700:4700::1001#cloudflare-dns.com 2001:4860:4860::8844#dns.google 2620:fe::9#dns.quad9.net 2a0f:fc81::#dns0.eu')
option('ntp-servers', type : 'string',
description : 'space-separated list of default NTP servers',
value : 'time1.google.com time2.google.com time3.google.com time4.google.com')
# Cloudflare: 1.1.1.1#cloudflare-dns.com 1.0.0.1#cloudflare-dns.com 2606:4700:4700::1111#cloudflare-dns.com 2606:4700:4700::1001#cloudflare-dns.com
# Google: 8.8.8.8#dns.google 8.8.4.4#dns.google 2001:4860:4860::8888#dns.google 2001:4860:4860::8844#dns.google
# Quad9: 9.9.9.9#dns.quad9.net 149.112.112.112#dns.quad9.net 2620:fe::fe#dns.quad9.net 2620:fe::9#dns.quad9.net
+# DNS0: 193.110.81.0#dns0.eu 185.253.5.0#dns0.eu 2a0f:fc80::#dns0.eu 2a0f:fc81::#dns0.eu
#
# Using DNS= configures global DNS servers and does not suppress link-specific
# configuration. Parallel requests will be sent to per-link DNS servers