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Kevin

@dev_troubles

Kevin reposted

It's great that AWS already shared a postmortem, and we can understand some things that went wrong, starting the outage. A summary of the events, based on what the AWS team shared

What caused the AWS outage that felt like it took down half the internet on Monday? It started with a race condition in DynamoDB's DNS propagation, which ended up setting the dynamod.us-east-1 .amazonaws .com DNS to empty. A deepdive and more details: blog.pragmaticengineer.com/aws-outage-us-…

Pragmatic_Eng's tweet image. What caused the AWS outage that felt like it took down half the internet on Monday?

It started with a race condition in DynamoDB's DNS propagation, which ended up setting the dynamod.us-east-1 .amazonaws .com DNS to empty.

A deepdive and more details: blog.pragmaticengineer.com/aws-outage-us-…


Kevin reposted

MIT literally packed 7 hours with everything you need to know about Gen AI for free

neatprompts's tweet image. MIT literally packed 7 hours with everything you need to know about Gen AI for free

Kevin reposted

🛡️ 𝐀 𝐒𝐞𝐜𝐮𝐫𝐢𝐭𝐲 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫'𝐬 𝐆𝐮𝐢𝐝𝐞 𝐭𝐨 𝐌𝐂𝐏 If you need to learn how to test & secure MCPs in your org in a hurry... Get up to speed in 10min + a free MCP security cheatsheet of exactly what to look for.

clintgibler's tweet image. 🛡️ 𝐀 𝐒𝐞𝐜𝐮𝐫𝐢𝐭𝐲 𝐄𝐧𝐠𝐢𝐧𝐞𝐞𝐫'𝐬 𝐆𝐮𝐢𝐝𝐞 𝐭𝐨 𝐌𝐂𝐏
If you need to learn how to test & secure MCPs in your org in a hurry...
Get up to speed in 10min + a free MCP security cheatsheet of exactly what to look for.

Kevin reposted

I am once again begging you to put your database servers and application servers in the same region.


Kevin reposted

AI for Security has never been more exciting. Let me present MAPTA, our multi-agent framework that found multiple (now confirmed!) Remote Code Executions (RCE's) in flagship web products of Tier-1 companies. Why the secrecy? We're good boys, letting them cook patched through…

HatforceSec's tweet image. AI for Security has never been more exciting.

Let me present MAPTA, our multi-agent framework that found multiple (now confirmed!) Remote Code Executions (RCE's) in flagship web products of Tier-1 companies. Why the secrecy? We're good boys, letting them cook patched through…

Kevin reposted

Everything You Need to Know About WebSockets ⚡ If you’re building chat apps, live dashboards, multiplayer games, or real-time systems then WebSockets are your best friend. Here’s a full breakdown 👇

_trish_xD's tweet image. Everything You Need to Know About WebSockets ⚡

If you’re building chat apps, live dashboards, multiplayer games, or real-time systems then WebSockets are your best friend.

Here’s a full breakdown 👇

Kevin reposted

uops.info is an excellent resource for performance optimization - it shows actual latency, throughput, and port usage for every x86 instruction's micro-ops. Essential for anyone doing low-level optimization!

vivekgalatage's tweet image. uops.info is an excellent resource for performance optimization - it shows actual latency, throughput, and port usage for every x86 instruction's micro-ops.

Essential for anyone doing low-level optimization!
This post is unavailable.

Kevin reposted

Have you ever wondered what happens if we break compiler conventions? I was able to obfuscate the control flow of a program and hide code by modifying non-volatile registers to modify the behavior of library code. blog.elmo.sg/posts/the-art-…


Kevin reposted

😈 𝐓𝐫𝐚𝐢𝐧𝐢𝐧𝐠 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐬𝐭 𝐌𝐨𝐝𝐞𝐥𝐬: 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐧𝐠 𝐌𝐚𝐥𝐰𝐚𝐫𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 How to make an LLM train itself to write more evasive malware. Outflank’s Kyle Avery describes how a small, specially trained LLM (Dante-7B, based on…

clintgibler's tweet image. 😈 𝐓𝐫𝐚𝐢𝐧𝐢𝐧𝐠 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐬𝐭 𝐌𝐨𝐝𝐞𝐥𝐬: 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐧𝐠 𝐌𝐚𝐥𝐰𝐚𝐫𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭

How to make an LLM train itself to write more evasive malware.

Outflank’s Kyle Avery describes how a small, specially trained LLM (Dante-7B, based on…
clintgibler's tweet image. 😈 𝐓𝐫𝐚𝐢𝐧𝐢𝐧𝐠 𝐒𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐬𝐭 𝐌𝐨𝐝𝐞𝐥𝐬: 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐧𝐠 𝐌𝐚𝐥𝐰𝐚𝐫𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭

How to make an LLM train itself to write more evasive malware.

Outflank’s Kyle Avery describes how a small, specially trained LLM (Dante-7B, based on…

Kevin reposted

how to find all of the good LLM prompts from darpa's AIxCC including @trailofbits 's Buttercup that just got 2nd place

computerality's tweet image. how to find all of the good LLM prompts from darpa's AIxCC including @trailofbits 's Buttercup that just got 2nd place

Kevin reposted

I just found kubespec.dev and I love it! It's a great way to quickly look up the syntax for Kubernetes objects.


Kevin reposted

The Keystone of Container Networking: Linux Bridge 🔽 Each container is placed into its own network namespace. Connecting to it can be done via a pair of virtual Ethernet devices (veth). But how to combine multiple such devices into one network? Learn at labs.iximiuz.com/challenges/con…

iximiuz's tweet image. The Keystone of Container Networking: Linux Bridge 🔽

Each container is placed into its own network namespace. Connecting to it can be done via a pair of virtual Ethernet devices (veth). But how to combine multiple such devices into one network?

Learn at labs.iximiuz.com/challenges/con…

Kevin reposted

Not sure why but we have lots of new followers! FFmpeg makes extensive use of hand-written assembly code for huge (10-50x) speed increases so we are providing assembly lessons to teach a new generation of assembly language programmers. Learn more here: github.com/FFmpeg/asm-les…


Kevin reposted

OpenAI has released a guide on how to finetune their open-source models: cookbook.openai.com/articles/gpt-o…

scaling01's tweet image. OpenAI has released a guide on how to finetune their open-source models:

cookbook.openai.com/articles/gpt-o…

Kevin reposted

What Exactly Does "docker run -it" Do? 🧐 When a container needs to run an interactive app such as a shell, language REPL, or text editor, the "docker run" command requires two extra flags: -i and -t. Explore how they work by solving this challenge labs.iximiuz.com/challenges/doc…

iximiuz's tweet image. What Exactly Does "docker run -it" Do? 🧐

When a container needs to run an interactive app such as a shell, language REPL, or text editor, the "docker run" command requires two extra flags: -i and -t.

Explore how they work by solving this challenge labs.iximiuz.com/challenges/doc…

Kevin reposted

Docker 101: Run Your First Containers 🛠️ Get started with Docker by solving these practical problems: - Run a hello-world container - Run a web-server container - Run an interactive shell container Automated checks and hints included! labs.iximiuz.com/challenges/doc…

iximiuz's tweet image. Docker 101: Run Your First Containers 🛠️

Get started with Docker by solving these practical problems:

- Run a hello-world container
- Run a web-server container
- Run an interactive shell container

Automated checks and hints included! labs.iximiuz.com/challenges/doc…

Kevin reposted

How Container Networking Works 🧐 Most Docker installations and Kubernetes clusters have the same bridge container network setup. The best way to understand how it works? Try reproducing one from scratch using nothing but the standard Linux commands: labs.iximiuz.com/tutorials/cont…

iximiuz's tweet image. How Container Networking Works 🧐

Most Docker installations and Kubernetes clusters have the same bridge container network setup. The best way to understand how it works? Try reproducing one from scratch using nothing but the standard Linux commands: labs.iximiuz.com/tutorials/cont…

Kevin reposted

The purpose of the Kubernetes networking guide is to provide an overview of various Kubernetes networking components with a specific focus on exactly how they implement the required functionality ➜ ku.bz/wFZSJh9bK


Kevin reposted

I was messing around with symbol resolution in ELF and came up with an obfuscation technique on abusing symbol resolution in ELF programs that is able to trick tools (i.e. Ghidra, IDA, GDB) into showing the wrong library function calls. blog.elmo.sg/posts/breaking…


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