pjcscoder @pjcscoder
Joined July 2018-
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What happens to your data if the system crashes before it is saved? Here is where the concept of the Write-Ahead Log (WAL) comes in. It is a simple system design concept. - Every operation (eg, inserting in database) is first written to a special log file - Once it is safe in…
Introduction to process injection in Linux akamai.com/blog/security-… #infosec #linux
Exploiting Linux kernel from Chrome renderer with MSG_OOB (Google Project Zero) googleprojectzero.blogspot.com/2025/08/from-c… #infosec #chrome
C Game + Engine from Scratch
Docker 101: Create, Start, Stop, and Remove Containers 🔽 Some Docker commands resemble typical Linux process management operations, while others sound more like operations on a filesystem. Explore the dual nature of containers (hands-on): labs.iximiuz.com/challenges/doc…
Technical Guide to System Calls: Implementation and Signal Handling in Modern Operating Systems A comprehensive technical guide to system calls and signal handling in modern operating systems, covering implementation details, kernel interfaces, and practical system programming…
The five-part memory profiling blog series is a great read - save and share. easyperf.net/blog/2024/02/1…
The five-part memory profiling blog series is a great read - save and share. easyperf.net/blog/2024/02/1… https://t.co/qUNXFWlJHS
If you are into C, systems programming, or just curious about how glibc works, the GNU C Library Reference Manual is absolutely incredible. It's clear, thorough, and easy to read, from memory allocation to locales to many advanced topics. sourceware.org/glibc/manual/l…
Text Editor in C
Porting a Mali GPU exploit to Pixel 6 Pro (CVE-2023-48409) starlabs.sg/blog/2025/06-s… Credits Lin Ze Wei (@starlabs_sg) #cybersecurity #mobile
Linux kernel fuzzing and vulnerability research (beginners intro) Part 1: slavamoskvin.com/hunting-bugs-i… Part 2: slavamoskvin.com/finding-bugs-i… Part 3: slavamoskvin.com/finding-bugs-i… Credits @slava_moskvin_ #Linux #cybersecurity
🎓 MIT's Performance Engineering of Software Systems course is fantastic if you are interested in performance. Topics include perf analysis, algorithmic techniques for high perf, instruction-level & caching optimizations, parallel programming, and more. ocw.mit.edu/courses/6-172-…
How to Send a Signal to a Kubernetes App 🧙♂️ Let's continue skilling up in Kubernetes debugging. Can you solve these practical problems: - Signal a regular pod labs.iximiuz.com/challenges/kub… - Signal a slim pod labs.iximiuz.com/challenges/kub… - Signal a non-root pod labs.iximiuz.com/challenges/kub…
This single blog will teach you a lot of devops concepts We highly recommend reading this Nginx architecture 𝗕𝗹𝗼𝗴: aosabook.org/en/v2/nginx.ht… ♻️ If you find this useful, Repost with your network! #DevOps
The slides from the paper, "Rethinking SIMD Vectorization for In-Memory Databases" (linked in the quote) are here! cs.columbia.edu/~orestis/sigmo…
The slides from the paper, "Rethinking SIMD Vectorization for In-Memory Databases" (linked in the quote) are here! cs.columbia.edu/~orestis/sigmo… https://t.co/kmMrnxNVSt
Hands-On Large Language Models! This repository contains the complete code examples from the book Hands-On Large Language Models. It includes notebook examples that cover everything from the introduction to language models to fine-tuning them. 100% Open Source
"Challenges and Pitfalls while Emulating Six Current Icelandic Household Routers" Evaluation of different tools for routers firmware emulation (FACT, QEMU, EMUX, Qiling, Firmadyne, FAT, FirmAE, Pandawan, and EMBA) skemman.is/bitstream/1946… #cybersecurity #embedded
Intro to Systems Programming, the C Language, and Tools for Software Engineering
🧵 Learn SQL in 16 Pages 📘 (Bookmark it for future) 1/16
🧵 Learn SQL in 16 Pages 📘 (Bookmark it for future) 1/16 https://t.co/XajieIt4Pj
Designing Data-Intensive Applications: Chapters 1 and 2 x.com/i/broadcasts/1…
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