yanzv

Developer | AWS Enthusiast | IT Consultant | Electronics Hobbyist

[yanzv @yanzv]

Just burned $7 on Grok API in *1 hour* setting up @OpenClawAI 😩

Culprits:
• Infinite tool loops (missing XML params = validation hell)
• Heartbeat polls firing non-stop
• Setup retries stacking tokens

$0.007/session after fix

#OpenClaw #GrokAPI #AIHumor

[yanzv @yanzv]

The new scamming glitch in UG VR
DO NOT DO THIS TO OTHERS https://t.co/T5KVsvdMHb via @YouTube
#UG #Quest3

[yanzv @yanzv]

My son created his first YouTube video tutorial on UG VR game which just recently came out. https://t.co/b1sDft6Hx4

Super fun game!

#UG

[(((David Ginzberg))) @DGinzberg]

Yan Zverev with his @christianacare queue management project. #ehealth #openbracketde

[yanzv @yanzv]

@aisolopreneur No

[Dr Milan Milanović @milan_milanovic]

𝗗𝗼 𝗬𝗼𝘂 𝗡𝗲𝗲𝗱 𝗧𝗼 𝗞𝗻𝗼𝘄 𝗔𝗹𝗹 𝗗𝗲𝘀𝗶𝗴𝗻 𝗣𝗮𝘁𝘁𝗲𝗿𝗻𝘀?

The answer is no. Even though we have 23 design patterns, around ten are mostly used in everyday development. Knowing which patterns exist overall is good, but you need to know these very well.

Design patterns can be divided into three main types:

𝟭. 𝗖𝗿𝗲𝗮𝘁𝗶𝗼𝗻𝗮𝗹 𝗣𝗮𝘁𝘁𝗲𝗿𝗻𝘀

These design patterns deal with object creation mechanisms, trying to create objects in a manner suitable to the situation.

Important patterns in this group are:

🔹𝗙𝗮𝗰𝘁𝗼𝗿𝘆: This pattern allows delegating the instantiation logic to factory classes. The Factory Method creates objects without exposing the instantiation logic to the client.

🔹𝗦𝗶𝗻𝗴𝗹𝗲𝘁𝗼𝗻: The Singleton pattern ensures that a class has only one instance and provides a global point of access to it. It's useful when exactly one object is needed to coordinate actions across the system.

𝟮. 𝗦𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗮𝗹 𝗣𝗮𝘁𝘁𝗲𝗿𝗻𝘀

These patterns deal with the composition of classes and objects which form larger structures.

Important patterns in this group are:

🔹𝗔𝗱𝗮𝗽𝘁𝗲𝗿: This pattern works as a bridge between two incompatible interfaces. It wraps an existing class with a new interface to become compatible with the client's interface.

🔹𝗙𝗮𝗰𝗮𝗱𝗲: The Façade pattern provides a unified interface to a set of interfaces in a subsystem. Façade defines a higher-level interface that makes the subsystem easier to use.

🔹𝗗𝗲𝗰𝗼𝗿𝗮𝘁𝗼𝗿: This pattern dynamically adds/overrides behavior in an existing method of an object. This pattern provides a flexible alternative to subclassing for extending functionality.

🔹𝗣𝗿𝗼𝘅𝘆: The Proxy pattern provides a surrogate or placeholder for another object to control access to it. In its most general form, a proxy is a class functioning as an interface to something else.

𝟯. 𝗕𝗲𝗵𝗮𝘃𝗶𝗼𝗿𝗮𝗹 𝗣𝗮𝘁𝘁𝗲𝗿𝗻𝘀

These patterns are specifically concerned with communication between objects and how they interact and distribute work.

Important patterns in this group are:

🔹𝗖𝗼𝗺𝗺𝗮𝗻𝗱: The Command pattern encapsulates a request as an object, thus allowing users to parameterize clients with queues, requests, and operations.

🔹𝗧𝗲𝗺𝗽𝗹𝗮𝘁𝗲 𝗠𝗲𝘁𝗵𝗼𝗱: This pattern defines the program skeleton of an algorithm in a method called template method, which defers some steps to subclasses.

🔹𝗦𝘁𝗿𝗮𝘁𝗲𝗴𝘆: The Strategy pattern defines a family of algorithms, encapsulates each one, and makes them interchangeable. Strategy lets the algorithm vary independently from clients that use it.

🔹𝗢𝗯𝘀𝗲𝗿𝘃𝗲𝗿: This pattern defines a one-to-many dependency between objects so that all its dependents are notified and updated automatically when one object changes state.

#technology #softwareengineering #programming #techworldwithmilan #developers

[Vivek Ramachandran @vivekramac]

Interesting article differentiating 'mind time' and 'clock time', and why we might perceive time flying by faster as we grow older. https://t.co/7cNtbilSxE

[Alisa Esage Шевченко @alisaesage]

Slides: "Hypervisor Vulnerability Research: State of the Art" (with a deep focus on Hyper-V & ESXi) https://t.co/gg3AFv00BM

[Pentester Academy @SecurityTube]

Congrats to @rizem0n, @BriskSec and @yanzv – the top 3 winners of our Cloud Security: Serverless Edition CTF! Thank you for participating, and we hope you’ve enjoyed the challenge!

[Pentester Academy @SecurityTube]

Announcing our PA Covid-19 Relief Scholarship!
We know times are tough, so we’re awarding 3x 6-month subscriptions (worth $414) to individuals impacted by the pandemic through layoffs, paycuts and other challenges.
Submit your application now at: https://t.co/8p0ZYI2UGr

[yanzv @yanzv]

@Radiance_37k @SecurityTube @vivekramac The write up is usually posted on the CTF page after it ends. Not sure if that would require subscription too see it

[yanzv @yanzv]

@vivekramac This was a great CTF! .. A lot of learning opportunities. Thanks again @vivekramac and @SecurityTube

[yanzv @yanzv]

@vivekramac This was a CTF!!!! Finally got all 7 flags. Thanks for setting this up!

[yanzv @yanzv]

@SecurityTube What was the privilege escalation? Thanks!

[yanzv @yanzv]

@vivekramac @SecurityTube That was a really good idea. Hopefully I’ll have a chance to extent some of the recon tools and to include modules that were required to solve some of the challenges

[yanzv @yanzv]

Finally finished the @SecurityTube Cloud Security CTF. This was a painstaking but super fun CTF. I’ve learned a bunch about enumerating AWS and really how much a user can get from just having read only AWS account credentials. Thanks @vivekramac and @SecurityTube !

[Vivek Ramachandran @vivekramac]

Our Cloud Security CTF begins tomorrow! Find configuration and implementation flaws in EC2, S3, Lambda and DynamoDB and win PRIZES! Register to be notified: https://t.co/D0pBSgwyee

[yanzv @yanzv]

@vivekramac Is it going to the AWS cloud based CTF?

[Pentester Academy @SecurityTube]

Only 2 days to the end of our CTF Weekly Challenge! Don't give up - prizes await when you complete! Register now: https://t.co/INnxUYIevv

[yanzv @yanzv]

@vivekramac @vivekramac I am still “sour” about the last pickle CTF 😂

[yanzv @yanzv]

@vivekramac Finally! Got all 4 flags. This is was a great learning experience! Sent the write up. One of the things I’ve learned always READ the CTF description. Thanks!