Hi, I’m Du Song — a software engineer based in China. This blog is where I keep notes on Linux administration, networking, and running self-hosted services.
Most posts here are written as reference material for myself, but hopefully someone else finds them useful too.
What I Write About
- Linux server management (Debian, Ubuntu)
- Networking and DNS configuration
- Docker and containerized deployments
- Performance tuning and monitoring
- Miscellaneous tech explorations
Contact
Feel free to reach out via GitHub.