In my previous post, I wrote about a Linux routing issue that broke a deployment and caused repeated...
Deployment failed with validation errors; logs pointed to firewall, but tcpdump showed inbound traffic reached the server—real cause was misconfigured Linux routing. Logs reveal only symptoms; packet captures show actual network behavior. For CTO: network observability beyond logs is critical for efficient debugging.
In my previous post, I wrote about a Linux routing issue that broke a deployment and caused repeated validation failures.
What ultimately led me to the root cause wasn't a configuration change or a log entry.
It was a packet capture.
This article isn't about a routing issue. It's about the tool that helped uncover it and the lesson I took away from the entire investigation.
Everything Looked Healthy
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