Global Singleton and the Runtime Hell in Next.js
Background In any long-running application, we almost always need global singletons — for example, a logger or a db instance […]
Multiprocessing and PID 1 Issue in Docker
When running a multiprocessing application in a Docker container, you might encounter strange “zombie processes” (defunct) that never disappear. This
Do Not Use Random Operation Seeds Inside TensorFlow Graph Functions
If you call TensorFlow’s random options (e.g., tf.random.uniform) inside a TF graph function (e.g., @tf.function) and pass an op-level seed,
Technical Analysis of CVE-2020-25213: WP File Manager RCE Vulnerability
Background CVE-2020-25213, a Remote Code Execution (RCE) vulnerability in the WordPress WP-File-Manager plugin (version 6.0 to 6.8). If you’d like
tcp, tcp-pkt, tcp-stream in Suricata rule
In Suricata’s official document, there are oversimplified descriptions for these three protocol options, and it’s really confusing. In order to
Key Exchange, TLS1.2 and TLS1.3
Above all, we need to know that asymmetric encryption is much slower than symmetric encryption. So, in practice, we usually
Odoo 17 – Deployment and running with Nginx
Source installation and running Although Odoo provides packaged installers for convenience, I prefer to download the source code and run
A Python trick at Leetcode
Today, I solved the jump game problem on Leetcode. After submitting the correct answer (runtime: 350 ms), I clicked the