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RichFelker's profile
Rich Felker
Rich Felker
Rich Felker
@RichFelker

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Rich Felker

@RichFelker

Yeah, I do @musllibc, FOSS & infosec stuff. But now is not the time for a mostly-/only-tech Twitter feed.

musl-libc.org
Joined March 2014

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    1. Rich Felker‏ @RichFelker May 10

      Thanks @n_copa for letting me know video from @miekg's DNS talk is up. I'd seen slides but waited to see/hear it before trying to give any response.https://www.youtube.com/watch?v=ZnW3k6m5AY8 …

      1 reply 1 retweet 3 likes
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    2. Rich Felker‏ @RichFelker May 10

      Overall it seems accurate and fair (which I think some Alpine ppl were worried it might not be), but I do think it was missing a little bit of context.

      1 reply 0 retweets 0 likes
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    3. Rich Felker‏ @RichFelker May 10

      In regards to RFC 5966 (https://tools.ietf.org/html/rfc5966 ), there is some relevant content just below the quoted text:pic.twitter.com/q9odhkZ3oj

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    4. Rich Felker‏ @RichFelker May 10

      A UDP response fits approx. (496-strlen(hostname))/16 A records or (496-strlen(hostname))/28 AAAA records. That's 15 or 8 even for a max-length (255) hostname. Far more than you can comfortably (without major delays) try connecting to in a fallback loop.

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    5. Rich Felker‏ @RichFelker May 10

      My choice not to do TCP in musl's stub resolver was based on an interpretation that truncated results are not just acceptable but better ux - not only do you save major round-trip delays to DNS but you also get a reasonable upper bound on # of addrs in result.

      2 replies 3 retweets 3 likes
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      Rich Felker‏ @RichFelker May 10

      Rich Felker Retweeted Justin Cormack

      This is a really good point - for applications that need exact specialized behavior of some sort rather than just getaddrinfo for connecting to hosts, a specialized DNS library is what you probably want.https://twitter.com/justincormack/status/994656216360992768 …

      Rich Felker added,

      Justin Cormack @justincormack
      Replying to @RichFelker
      The point at the end that if you want total control over every detail you should use a specialist library is a very good one, and to be encouraged.
      12:57 PM - 10 May 2018
      • 1 Retweet
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      • Laurent Bercot
      0 replies 1 retweet 1 like

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