Field notes from production.

Real bugs from real systems, and exactly how they got fixed.

32 notes/2020 → 2026/RSSllms.txt
· git · github

git push: "[remote rejected] master -> master (Internal Server Error)" is GitHub's problem, not your commits

git push fails with [remote rejected] (Internal Server Error) right after unpack ok. One no-op push proves it's GitHub, not your commits. Then you wait.

Read the note →
2026 30 notes
  1. Oct 07 git push: "[remote rejected] master -> master (Internal Server Error)" is GitHub's problem, not your commits git · github · cli 07 Oct · git · github · cli
  2. 06 You can't remove the last tag from a Tailscale machine, but you can swap it tailscale · ssh · networking 06 Oct · tailscale · ssh · networking
  3. 05 "Argument #4 must be of type …, … given": prod is running the last release's container php · symfony 05 Oct · php · symfony
  4. Sep 27 DataForSEO says "You can set only one task at a time" and still returns 200 Ok seo · api · debugging 27 Sep · seo · api · debugging
  5. 24 My Postgres RLS policy ran its permission check 28,765 times per query postgresql · debugging 24 Sep · postgresql · debugging
  6. 24 X-Apple-Action: JUNK on an email that passed DMARC email · llm · aws 24 Sep · email · llm · aws
  7. 23 Vercel Web Analytics served its script from a path with no leading slash vercel · analytics · debugging 23 Sep · vercel · analytics · debugging
  8. 23 Git says "You have not agreed to the Xcode license agreements" git · macos · cli 23 Sep · git · macos · cli
  9. 20 PHP's sprintf pads by bytes, so one † moved my table columns php · cli · debugging 20 Sep · php · cli · debugging
  10. 19 aws_instance must be replaced, because Amazon published a new AMI aws · terraform · infrastructure 19 Sep · aws · terraform · infrastructure
  11. 17 "zsh: bad CPU type in executable" after upgrading to macOS 27 macos · aws · cli 17 Sep · macos · aws · cli
  12. 15 PostHog cookieless mode said 200 Ok and dropped every pageview analytics · privacy · debugging 15 Sep · analytics · privacy · debugging
  13. 08 Moving a Route 53 hosted zone between AWS accounts aws · dns · networking 08 Sep · aws · dns · networking
  14. 05 Tailscale SSH: connection refused, permission denied, and which server actually answered tailscale · ssh · networking 05 Sep · tailscale · ssh · networking
  15. 04 280 vulnerabilities, one unused package security · linux 04 Sep · security · linux
  16. Aug 28 mount.cifs said the credentials were formatted incorrectly. It was right. linux · infrastructure 28 Aug · linux · infrastructure
  17. 22 LocalStack exited with code 55 after a routine image update docker · aws · debugging 22 Aug · docker · aws · debugging
  18. 18 The filename that works in bash and breaks in zsh linux · bash · cli 18 Aug · linux · bash · cli
  19. 14 Dart Sass quietly reordered my CSS css · sass 14 Aug · css · sass
  20. 10 "Cannot connect to MySQL using SSL" is a hostname problem php · mysql · azure 10 Aug · php · mysql · azure
  21. 06 Never let the LLM write the subject line email · llm · aws 06 Aug · email · llm · aws
  22. Jul 28 Restate's default node name is your container hostname docker 28 Jul · docker
  23. 23 Symfony 8 ignores your #[Groups] attribute php · symfony 23 Jul · php · symfony
  24. 13 The database was fine. The cloud around it wasn't. azure · postgresql · networking 13 Jul · azure · postgresql · networking
  25. Jun 20 Tailscale SSH fails with "tailnet policy does not permit access" tailscale · ssh · networking 20 Jun · tailscale · ssh · networking
  26. 15 Modernization usually means rewriting everything wrong openvms · legacy · modernization 15 Jun · openvms · legacy · modernization
  27. May 10 NAT Gateway is eating your AWS bill aws · infrastructure · startups 10 May · aws · infrastructure · startups
  28. Apr 27 WordPress fleets on AWS are rotting from the database up aws · wordpress · php 27 Apr · aws · wordpress · php
  29. 15 The one setting that stops Microsoft Authenticator spam security · microsoft 15 Apr · security · microsoft
  30. Mar 24 Your server is running two PHP versions (and one of them is lying) php · apache · linux 24 Mar · php · apache · linux

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