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Re:Ask HN: What is your favorite RFC? by avianauthor on Sunday January 06, 2019 @09:44AM (#18838542)
To LinuxBender: RFC2549 also clarified the key words: MUST Usually. MUST NOT Usually not. SHOULD Only when Marketing insists. MAY Only if it doesn't cost extra.
Re:Ask HN: What is your favorite RFC? by jamieweb on Friday January 04, 2019 @01:23PM (#18826336)
RFC2142 - I like it when organisations use standardised email addresses such as support@ and security@ for different business units.

Unfortunately many orgs either don't have these mailboxes set up, or they aren't actively monitored.

Re:Ask HN: What is your favorite RFC? by LinuxBender on Friday January 04, 2019 @02:45PM (#18827053)
RFC-6919 [1] The key words "MUST (BUT WE KNOW YOU WON'T)", "SHOULD CONSIDER", "REALLY SHOULD NOT", "OUGHT TO", "WOULD PROBABLY", "MAY WISH TO", "COULD", "POSSIBLE", and "MIGHT" in this document are to be interpreted as described in RFC 6919.

[1] - https://tools.ietf.org/html/rfc6919

Re:Ask HN: What is your favorite RFC? by Something1234 on Friday January 04, 2019 @01:06PM (#18826178)
I'm working on writing a paper for a class on the DNS system. I really like rfc1035 [1]. It describes the goals, and terms involved. Also it goes into details on their design tradeoffs, and how they made it distributed.

[1]: https://tools.ietf.org/html/rfc1035

Re:Ask HN: What is your favorite RFC? by mpweiher on Friday January 04, 2019 @01:24PM (#18826353)
A Standard for the Transmission of IP Datagrams on Avian Carriers

https://www.ietf.org/rfc/rfc1149.txt

"There is persistent delivery retry, until the carrier drops."

Re:Ask HN: What is your favorite RFC? by DanBC on Friday January 04, 2019 @01:25PM (#18826360)
Re:Ask HN: What is your favorite RFC? by ocdtrekkie on Friday January 04, 2019 @01:17PM (#18826268)
RFC1178. I take my PC naming seriously.
Re:Ask HN: What is your favorite RFC? by wglb on Friday January 04, 2019 @11:37PM (#18829938)
RFC 4042 which details UTF 9 in good detail.