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--- dns_flag_day_2020 [2023/05/24 04:12] – [What is DNS Flag Day?] -changed to "2019's Flag Day" hogwild
+++ dns_flag_day_2020 [2023/05/24 04:17] (current) – [DNS message fragmentation] hogwild
@@ Line 32: / Line 32: @@
 DNS Flag Day 2020 wants to ensure that DNS message fragmentation does not happen. When larger DNS messages need to be sent, we need to ensure it can be done reliably over TCP.
-DNS servers need to support DNS message transport over TCP in order to be compliant with this year's flag day. Also, DNS messages sent over UDP must never exceed the limit over which they risk being fragmented.
+DNS servers need to support DNS message transport over TCP in order to be compliant with the 2020 Flag Day. Also, DNS messages sent over UDP must never exceed the limit over which they risk being fragmented.
-====== Cloudflare authoritative DNS and 1.1.1.1 ======
+===== Cloudflare authoritative DNS and 1.1.1.1 =====
-We fully support the DNS Flag Day initiative, as it aims to make DNS more reliable and robust, and it ensures a common set of features for the DNS community to evolve on. In the DNS ecosystem, we are as much a client as we are a provider. When we perform DNS lookups on behalf of our customers and users, we rely on other providers to follow standards and be compliant. When they are not, and we can’t work around the issues, it leads to problems resolving names and reaching resources.
+Cloudflare fully supports the DNS Flag Day initiative, as it aims to make DNS more reliable and robust, and it ensures a common set of features on which the DNS community can evolve. In the DNS ecosystem, we are as much a client as we are a provider. When we perform DNS lookups on behalf of customers and users, we rely on other providers to follow standards. When they are not, and we can’t work around the issues, it leads to problems resolving names and reaching resources.
-Both our public resolver 1.1.1.1 as well as our authoritative DNS service, set and enforce reasonable limits on DNS message sizes when sent over UDP. Of course, both services are available over TCP. If you’re already using Cloudflare, there is nothing you need to do but to keep using our DNS services! We will continually work on improving DNS.
+Both our public resolver 1.1.1.1 and our authoritative DNS service set and enforce reasonable limits on DNS message sizes sent over UDP. Of course, both services are available over TCP.
-Oh, and you can test your domain on the DNS Flag Day site: [[https://dnsflagday.net/2020/]]
+You can use the DNS Flag Day site to test your DNS: [[https://dnsflagday.net/2020/]]
 Reference information is available here: [[https://blog.cloudflare.com/dns-flag-day-2020/]]

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