Running out of TCP ephemeral source ports

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The Backend Engineering Show with Hussein Nasser

Hussein Nasser

534 episodes

3 days ago

Welcome to the Backend Engineering Show podcast with your host Hussein Nasser. If you like software engineering you’ve come to the right place. I discuss all sorts of software engineering technologies and news with specific focus on the backend. All opinions are my own. Most of my content in the podcast is an audio version of videos I post on my youtube channel here http://www.youtube.com/c/HusseinNasser-software-engineering Buy me a coffee https://www.buymeacoffee.com/hnasr 🧑‍🏫 Courses I Teach https://husseinnasser.com/courses

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Running out of TCP ephemeral source ports

The Backend Engineering Show with Hussein Nasser

20 minutes 6 seconds

1 year ago

Running out of TCP ephemeral source ports

In this episode of the backend engineering show I describe an interesting bug I ran into where the web server ran out of ephemeral ports causing the system to halt.

0:00 Intro

0:30 System architecture

2:20 The behavior of the bug

4:00 Backend Troubleshooting

7:00 The cause

15:30 Ephemeral ports on loopback