This newsletter is a collection of short Chinese-language technical notes on fixing specific problems, such as repairing XFS and ext4 filesystems on Linux, moving MP4 metadata for web playback, and disabling SELinux on CentOS 7. Each issue lists the error or goal, then the commands to resolve it.
Website: https://oyang.cc/
Personal technical blog by security researcher splitline, mixing witty self-deprecating essays on Unix and file-based attack surfaces with detailed CTF challenge write-ups. Readers get explanations of real vulnerabilities such as path traversal and LFI/RCE, with code samples and author commentary.
Rüegger's Log is a personal German-language newsletter with hands-on articles on self-hosting, Linux and running your own infrastructure. Recent issues cover a deep dive into the cross-platform Task Manager TMOG, a making-of for a browser extension that works around newspaper paywalls, and a critical look at Firefox's standards support for web developers.
Practical sysadmin write-ups on Linux, Docker, self-hosting and troubleshooting, drawn from setups the author actually runs. Posts give TL;DRs, exact commands and the diagnostic steps that led to each fix.
One short email a week with hand-picked newsletters from the index. Free, no spam, unsubscribe anytime.
