AxLSecureUpdate @AxLSecureUpdate

HTTP/3 Race Fuzzer trickest.com/library/http-3…

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El PNG de la red se queda muerto en el chat. Te piden que expliques cómo está armada la oficina: internet, firewall, servidores, el WiFi de los laptops. Mandas una captura. La otra persona no sabe por dónde empezar a mirar. NetDraw es un pizarrón en el navegador para eso. Arrastras router, firewall, switch, servidor, laptop. Los unes. Los metes en zonas: DMZ, core, wireless. Sin instalar nada. La parte que cambia el oficio no es el icono bonito. Es Journey. Armas el diagrama y después lo recorres con alguien: primero el borde, después los servidores, después lo que está expuesto a internet. Rec graba ese recorrido, animaciones incluidas, y lo exportas en PNG, SVG o GIF. Si quieres atajo con un modelo, le pasas el esquema y le pides el JSON. Si no quieres modelo, lo armas a mano. Las dos valen. Corre en el browser. mr-r3b00t.github.io/net_draw/ La próxima vez que un junior o un cliente te pida “cómo está la red”, seguirías mandando la captura o armarías el recorrido?

🚨 HYPERBOLOID GEARS — TORQUE WITHOUT INTERSECTING SHAFTS Tooth shape = hyperboloid of revolution, helical cut, offset axes never cross but still transmit ⚙️ Most don't know geometry sits between worm (high torque) + bevel (smooth/low noise), why rear diffs use it to lower driveshaft + boost cabin space

This is Morse code visualized

Two bottles and sunlight can turn seawater into fresh water. 📹 thebrainmaze

After seeing so many ESP32 devices, I think people seriously underestimate the jog dial and the humble REC slide switch. Hardware designers should learn more from 2000s Japanese consumer electronics. Those teams understood tactile UX long before touchscreens took over.

HomeBox is an inventory and organization system built for home users. It allows you to categorize items, track purchase and warranty details, and upload images for easy identification. Written in Go, it uses SQLite and maintains low memory usage. github.com/sysadminsmedia…

Experience True #3D with Aoshow's AS_3D Volumetric LED Display by @gigadgets_ #Innovation #EmergingTech #AI #ArtificialIntelligence

Best Psychological Animes

Virtualization vs Containerization by @LevelUpCoding_ #cybersecurity #cybersecurityawareness #infosec #SOC #Networks #Linux #cheatsheet

The more you watch it, more surreal it gets. A Satoshi Kon masterpiece that inspired Christopher Nolan's Inception (2010).

Since nobody called it out in the comments, this “new way” to show 3D Gaussian splats is a basic 19th century construction, studied by Jakob Steiner and others, called a “sphere inversion” or “Möbius transformation”: en.wikipedia.org/wiki/Inversive… It looks good because it is an example of a so-called conformal map, which preserves angles, but distorts scales. However, when you look at something up close, it doesn't really matter what its absolute scale is (whereas angular distortion is far more noticeable). Conformal maps, namely the 16th century Mercator projection (old as it is) remains the projection of choice in Google Maps and other mapping tools, since it is the unique map that (i) preserves angles, and (ii) keeps north pointing "up" everywhere on the globe. The 3DGS scheme shown here is just bumping up the usual approach up one dimension: apply a conformal projection; keep the "up" direction fixed. The specific choice of conformal maps (inversions in the sphere) are in fact the only choice available in 3D, due to Liouville's theorem on conformal mappings. [Orange illustration below is from my PhD thesis on conformal geometry: cs.cmu.edu/~kmcrane/Proje…]

VoxelKei @VoxelKei

2 months ago

3D Gaussian Splattingの新しい見せ方を作りました。その名も Inversphere. 2Dのリトルプラネットと違い、空間ごと球面反転しています。ガラス玉に入れる従来の見せ方は球で「切り取る」のに対して、これは球の中へ「折り込む」ので360度の景色が無限遠まで立体で入っています。 #3DGS

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AS_3D Volumetric LED Display from Aoshow

ongoing mini projects.😋

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10 Must-Know Time Complexity Patterns for Interviews: 1. 𝐇𝐚𝐬𝐡 𝐋𝐨𝐨𝐤𝐮𝐩 - 𝐎(1) 𝐚𝐯𝐞𝐫𝐚𝐠𝐞 A lookup usually takes constant time, regardless of input size. In the worst case, it can degrade to O(n). 2. 𝐇𝐚𝐥𝐯𝐢𝐧𝐠 𝐋𝐨𝐨𝐩 - 𝐎(𝐥𝐨𝐠 𝐧) The input size is divided by a constant factor in every step, such as in binary search. 3. 𝐒𝐢𝐧𝐠𝐥𝐞 𝐋𝐨𝐨𝐩 - 𝐎(𝐧) Each element is processed once. 4. 𝐒𝐞𝐪𝐮𝐞𝐧𝐭𝐢𝐚𝐥 𝐋𝐨𝐨𝐩𝐬 - 𝐎(𝐧 + 𝐦) You iterate over two separate inputs one after another, not with one loop nested inside the other. 5. 𝐋𝐨𝐨𝐩 + 𝐁𝐢𝐧𝐚𝐫𝐲 𝐒𝐞𝐚𝐫𝐜𝐡 - 𝐎(𝐧 𝐥𝐨𝐠 𝐧) A loop runs n times, and each iteration performs O(log n) work. 6. 𝐃𝐢𝐯𝐢𝐝𝐞 & 𝐂𝐨𝐧𝐪𝐮𝐞𝐫 - 𝐎(𝐧 𝐥𝐨𝐠 𝐧) The problem is divided across roughly log n levels, with O(n) total work at each level. Merge sort is a common example. 7. 𝐍𝐞𝐬𝐭𝐞𝐝 𝐋𝐨𝐨𝐩𝐬 - 𝐎(𝐧²) For every element, you iterate over all elements again. 8. 𝐓𝐫𝐢𝐚𝐧𝐠𝐮𝐥𝐚𝐫 𝐋𝐨𝐨𝐩 - 𝐎(𝐧²) The inner loop performs fewer iterations each time, but the total is still roughly n(n − 1) / 2, which is quadratic. 9. 𝐁𝐫𝐚𝐧𝐜𝐡𝐢𝐧𝐠 𝐑𝐞𝐜𝐮𝐫𝐬𝐢𝐨𝐧 - 𝐄𝐱𝐩𝐨𝐧𝐞𝐧𝐭𝐢𝐚𝐥 𝐓𝐢𝐦𝐞 When each recursive call creates multiple new calls, the work can grow exponentially. 10. 𝐏𝐞𝐫𝐦𝐮𝐭𝐚𝐭𝐢𝐨𝐧𝐬 - 𝐎(𝐧!) There are n! possible orderings, and producing or copying each complete permutation can take O(n) time. ♻️ Repost to help others in your network.

Scans nearby Bluetooth devices and tracks their presence github.com/BLE-Research-G…

jamesob/local-llm: Everything I know about running LLMs locally github.com/jamesob/local-…

From your first buffer overflow to kernel exploitation. Free. pwn.college takes you from basic Linux commands all the way through reverse engineering, shellcoding, ROP chains, heap exploitation, format strings, race conditions, and kernel module exploitation. All hands-on. All in a browser-based workspace. Reverse engineering with IDA, Ghidra, Binary Ninja, and angr. User-mode exploitation through every modern mitigation bypass. Kernel exploitation covering stack overflows, heap corruption, and race conditions in kernel modules. One of the places I spent a long time on and still do. If you are serious about exploit development and vulnerability research, this is where you sharpen the fundamentals. YouTube lectures, live Twitch streams, and a Discord community to get unstuck. Free. No paywall. No signup wall. Pwn: pwn.college YouTube: youtube.com/pwncollege Created by @Zardus (Yan Shoshitaishvili), kanak (Connor Nelson), mahaloz (Zion Basque), Erik Trickel, Adam Doupé, Pascal-0x90, and frqmod at Arizona State University. #ExploitDevelopment #ReverseEngineering #InfoSec

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Computer Networking 101: Sockets 🛠️ The best way to understand what sockets are and how they work is to write a few simple client-server programs. The good news is that it's only a few lines of Python or Go. Or if you feel courageous, try C - the code will be more verbose, but it's as close as it gets to the actual system API. A few problems to practice (in a friendly, controlled environment with helpful hints): - Write a simple TCP Echo server labs.iximiuz.com/challenges/wri… - (simpler) Write a client for a telemetry server labs.iximiuz.com/challenges/wri… - (harder) Write a client for a chat server labs.iximiuz.com/challenges/wri… - Make one server work with both TCP and Unix sockets labs.iximiuz.com/challenges/wri… Happy hacking!