The 64KB Pipe Trap
There is a peculiar class of system failures that leaves almost no trace. The process does not crash. There is no error code, no final log entry, and no obvious signal of…
ls ~/tips/code-snippets
Why Unix Doesn’t Kill Your Children (and Why That’s a Feature)
Last week my live-streaming transcoder started dying mid-session. The publisher would get disconnected, reconnects would fail, and the only cure was restarting nginx entirely. While poking around during one of these incidents,…
Why Is My Computer Asking to “Find Devices” on My Network? (Should I Say Yes?)
If you’ve opened Chrome, a coding app, or even some basic software lately, you might have seen a message like: “Allow this app to find and connect to devices on your local…
Blocking Metadata Access: A Simple SSRF Hardening Win
If you’re running infrastructure on cloud platforms, there’s a quiet but powerful security control you can apply with almost no downside: block access to the instance metadata service (IMDS) from your workloads.…
Lessons from Running a Live Streaming Setup for More than 7 Years
After seven years of managing high-traffic live streams, you learn that the biggest challenges aren’t usually the video codecs—they are the “invisible” layers: filesystem synchronization, HTTP header inheritance, and metadata consistency. When…