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cmuratori's profile
Casey Muratori
Casey Muratori
Casey Muratori
@cmuratori

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Casey Muratori

@cmuratori

I'm worried that the baby thinks people can't change.

Seattle
caseymuratori.com
Joined March 2009

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    1. Casey Muratori‏ @cmuratori 14 Feb 2018

      Follow-up on @letsencrypt: I am not so optimistic about it as the folks who replied to my previous inquiry. It seems pretty unstable (for example, they just broke all currently installed versions on the 9th!), and a lot of stuff doesn't even work out-of-the-box...

      4 replies 0 retweets 3 likes
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    2. Casey Muratori‏ @cmuratori 14 Feb 2018

      Since certificates are updated every 90 days, and failing to get an updated certificate would effectively take down your site, I'm really uncomfortable using something like this for security... it seems unreliable and not designed for guaranteed uptime?

      3 replies 0 retweets 2 likes
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    3. Casey Muratori‏ @cmuratori 14 Feb 2018

      Add that to the fact that its not really a compact, clean executable, but a sprawling mess of Python scripts, and I'm just not getting that positive vibe :( It seems like this will _add_ failure points into the process rather than removing them.

      8 replies 0 retweets 7 likes
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    4. Daverball‏ @Daverball 14 Feb 2018
      Replying to @cmuratori

      @cmuratori https://kristaps.bsd.lv/acme-client/  very sensible implementation, highly secure on BSD, reasonably secure on linux. Takes the policy to renew the certificate every month. You can slap it into a daily cronjob, after it is a month old it'll renew it.

      1 reply 0 retweets 1 like
    5. Daverball‏ @Daverball 14 Feb 2018
      Replying to @Daverball @cmuratori

      It will only replace the old cert if succesful, with something like OpenBSD's daily.local script you'd get notified automatically via e-mail when acme-client outputs an error. E-mail notifications with crontab aren't a big deal to setup either though.

      1 reply 0 retweets 0 likes
    6. Daverball‏ @Daverball 14 Feb 2018
      Replying to @Daverball @cmuratori

      Also as far as clients "breaking" goes it is only really the agreement url that changed, and acme-client lets you provide that manually if it ever is out of date. So very quick and painless to fix.

      1 reply 0 retweets 1 like
    7. Daverball‏ @Daverball 14 Feb 2018
      Replying to @Daverball @cmuratori

      API changes are technically possible and have happened before, but if I recall correctly then the last time that happened both API versions ran side by side for a while to give clients plenty of time to update.

      1 reply 0 retweets 1 like
    8. Daverball‏ @Daverball 14 Feb 2018
      Replying to @Daverball @cmuratori

      I do however understand concerns with the possibility that your client of choice may not continue to get maintained past an API change and then you'd have to change your entire setup. Personally I think it is worth the increased security that comes with short lived certs though.

      1 reply 0 retweets 1 like
    9. Casey Muratori‏ @cmuratori 14 Feb 2018
      Replying to @Daverball

      I'd be totally fine with it if it seemed like this was a tightly run ship, but it's not. It seems like most other web stuff, which is to say, there's plenty of failure modes and they don't spend a lot of time making sure things are simple and robust.

      3 replies 0 retweets 0 likes
      Casey Muratori‏ @cmuratori 14 Feb 2018
      Replying to @cmuratori @Daverball

      It takes about 15 minutes to manually deploy a 3 years certificate on a site, and that pretty much can't fail for 3 years :) Replacing that with a touch-and-go maybe-the-site-goes-down-every-90-days procedure seems like a really bad idea to me.

      4:23 PM - 14 Feb 2018
      2 replies 0 retweets 0 likes
        1. Gabriel Arrais‏ @arraiscgabriel 15 Feb 2018
          Replying to @cmuratori @Daverball

          After years working with this I must say, sir you are wrong.

          0 replies 0 retweets 5 likes
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        1. Daviey‏ @Daviey 17 Feb 2018
          Replying to @cmuratori @Daverball

          Doing task every 3 years massively opens to bit-rot of process, staff retention & lack of experience... Automate the refresh! Certbot default refresh when cert 60 days old. Ignore alerts of failure for 30 days, AND the final email from @letsencyrpt? Your site deserves to go down

          0 replies 0 retweets 2 likes
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