~/talk

My Favourite Errors

on YouTube 28m
Talkat DevOps Days Toronto 2019 · 2019-05-29..05-30· [devops-and-delivery]

speaker

name:Hany Fahim
links:none on file

resources

video:https://youtu.be/QPk1zC4AmB0
slides:none on file

summary

Starts with concrete diagnostics: use ping FQDN to catch expired domains, run traceroute loop between .56 and .51 to find TTL-exceeded routing loops, and inspect proxy/kernel logs for connection reset by peer versus connection refused. Recommends increasing timeouts up the stack (app 30s, nginx 31s, proxy 32s), adding domain-expiry monitoring, and watching for nginx-specific 499/4.99 artifacts. Shares a root cause: upstream DDoS appliance misconfigured to “active” holds connections indefinitely, producing silent failures.

AI-written summary · about

chapters (11)

  1. 0:00Start
  2. 1:00Standard Stack
  3. 1:29First action: Does it ping?
  4. 2:31No route to host
  5. 5:47Connection refused
  6. 6:47Connection timed out (TCP)
  7. 15:51HTTP 504
  8. 18:43Honourable Mentions
  9. 22:40Try telnet
  10. 24:28DDoS Protection
  11. 26:25Lessons and follow-up

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