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Payload Obfuscation 2026 — Encoding, Encryption & Packing Shellcode for AV Bypass | Hacking Course Day34
DEV Community • 2026-04-21 05:06

Payload Obfuscation 2026 — Encoding, Encryption & Packing Shellcode for AV Bypass | Hacking Course Day34

📰 Originally published on SecurityElites — the canonical, fully-updated version of this article. 🔐 ETHICAL HACKING COURSE FREE Part of the Free Ethical Hacking Course Day 34 of 60 · 56.7% complete ⚠️ Authorised Testing Only: Payload obfuscation techniques are used in authorised red team engagements and penetration tests to assess whether security controls detect real-world attack tools. C...

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4m read
DEV Community • 2026-04-21 05:05

How I Hardened an Ubuntu Server After Security Alerts Started Showing Up

A while ago, I was asked to check one of our Ubuntu servers because the cloud dashboard had started showing a lot of security alerts. Nothing was visibly broken. The apps were still running. Docker containers were still up. Nginx was still serving traffic. But the security panel was reporting things like: intrusion attempts multiple vulnerabilities outdated packages suspicious SSH activity T...

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10m read
DEV Community • 2026-04-21 05:05

Array Search methods

indexOf : indexOf() is used to find the index of an element. It return -1 if the element is not found. If the item is present more than once, it returns the position of the first occurrence. Case Sensitive: "A" and "a" are considered different values. const fruits = ["Apple","Orange","Banana","Papaya","Guava"] for(let a of fruits){ document.write("Index of "+ a+ " : "+fruits.i...

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1m read
DEV Community • 2026-04-21 05:04

DORA metrics for the CFO: making engineering velocity legible

The most useful conversation I've had in a DevOps engagement wasn't with an SRE or a platform engineer. It was with a CFO. Her engineering team had been asking for budget to invest in CI/CD pipeline upgrades, better observability tooling, and a dedicated platform engineer. The request had been deprioritised twice. "We don't see the ROI," she said. I pulled up four numbers. By the end of the call...

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7m read
DEV Community • 2026-04-21 05:02

Renaming 1000+ Pages Worth of "Levels" Without Losing My Mind

A message from a colleague dropped into my inbox one morning: Hi Ice, now that we pushed the changes sa site, we need to scour the site for mentions of Level 1, Level 2, Level 1/2 and change them accordingly to Level 1 → Intro to Neurofascial Training, Level 1/2 → Intermediate Instability Training, Level 2 → Advanced Neurofascial Training On the surface, this looks like a simple find-and-repla...

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4m read
DEV Community • 2026-04-21 05:00

Kubernetes Object Hierarchy: A Simple Mental Model

Kubernetes has a lot of objects. Don't think of them as a flat list. That's the wrong mental model. The right one is this: Kubernetes is a declarative control system. You describe the state you want, and a set of objects — each with a narrow job — cooperate to make reality match. Once you see how those objects fit together, the rest of Kubernetes is mostly details. Note: this post covers Kuberne...

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4m read
DEV Community • 2026-04-21 04:57

Why MCP Is Much Harder Than Most Articles Make It Sound

Most articles describe MCP as simple: One protocol One server All your AI integrations solved That is true in theory. In practice, the difficult part is everything after the first demo: Tool descriptions Auth STDIO vs HTTP Multi-client support Security That angle stands out because it builds naturally on your main article instead of competing with it. Here is a ready-to-post Dev.to / WordPre...

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3m read
DEV Community • 2026-04-21 04:55

Why 60% of Indian AWS accounts have RI coverage under 30%

Every AWS account we audit has the same conversation. "What is our Reserved Instance coverage?" "High. Most of the fleet. Maybe 70, 75 percent." We pull the report. It is 28 percent. The gap between what engineering teams believe about their RI coverage and what the billing data actually shows is the single most expensive blind spot in mid-market AWS accounts. It is not a rounding error. It is...

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3m read
DEV Community • 2026-04-21 04:54

Orphaned EBS volumes: the ₹80K/month silent drain

Every engineering team I talk to has done a cloud cost review at some point. Reserved Instance coverage, right-sizing EC2, maybe a pass at S3 storage tiers. What almost none of them have done is pull a list of every EBS volume currently sitting in available state — detached, idle, billing at full price, forgotten. In one mid-market engagement in ap-south-1 last year, that list came back with 38 v...

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6m read
DEV Community • 2026-04-21 04:52

Building a GPT From Scratch in C# - Introduction

Why This Course Exists I'm on a journey to deepen my understanding of AI, and I wanted to properly learn how the transformer architecture works - not just at a hand-wavy conceptual level, but well enough to build one from scratch. The problem was that most tutorials weren't clicking for me, and it came down to three things. They're written in Python. I'm a C# developer. Python isn't...

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4m read
DEV Community • 2026-04-21 04:49

We Didn’t Need Another AI Tool. So We Built an Execution Layer Instead.

Most engineering teams today aren’t slow because they lack tools. They’re slow because they have too many. Code review lives in one place. Debugging in another. Tests somewhere else. Docs scattered. Incidents handled separately. None of these systems share real context. So even with AI, teams are still doing this: switching tabs rewriting the same context repeating the same work AI didn’t re...

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2m read
HackerNoon - programming • 2026-04-21 04:49

The Dark Logic of COMEFROM and Human Thought Patterns

COMEFROM isn't just a joke in programming, but also the underlying construct of many psychological phenomenon :)Read All

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1m read
DEV Community • 2026-04-21 04:49

The 7 Kubernetes cost questions every CTO should be able to answer

By Anushka B Here’s a situation that plays out in engineering retrospectives across India every quarter. A senior platform engineer pulls up the AWS or GCP bill. The number has climbed — again. ₹18 lakh last month, ₹22 lakh this month. Leadership wants a breakdown. The platform team goes quiet. Not because they don’t care, but because the honest answer is: we don’t know where it went. You ha...

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8m read
DEV Community • 2026-04-21 04:47

🚀 Implement Soft Deletes Without Destroying Performance

Soft deletes sound simple: instead of deleting a record, you mark it as deleted. UPDATE users SET deleted = true WHERE id = 123; Done, right? Not quite. At small scale, this works fine. But as your data grows, soft deletes can quietly wreck query performance, bloat indexes, and complicate logic. Let’s break down how to do it properly—without turning your database into a slow-moving leg...

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3m read
DEV Community • 2026-04-21 04:42

Datadog alternatives for Indian mid-market (cost-aware)

Ask ten Indian Series B SaaS CTOs what they pay Datadog per month, and eight of them will sigh before answering. The median honest number is ₹10.6 lakh/month (OneUptime's 2024 survey of 140 Indian SaaS companies). The top quartile pays above ₹22 lakh. The bottom quartile, typically Series A with a Starter plan, sits around ₹3 lakh — and climbs fast. That is a line item on the P&L that nobody ...

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9m read
DEV Community • 2026-04-21 04:41

AWS cost audit for Indian SaaS: a 24-hour methodology

Every Indian mid-market company with a monthly AWS bill above ₹5 lakh has the same conversation with itself once a quarter. Engineering says the bill is "probably fine". Finance says it feels high but can't prove it. A founder asks "what would a real audit find?" — and usually, nobody answers, because nobody has done one. We have. Across a dozen pattern studies in ap-south-1 over the last year, t...

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8m read
DEV Community • 2026-04-21 04:37

Hello DEV! I'm Nouman — CyberSecurity Student & Fullstack Developer from Pakistan 🇵🇰

## Hey DEV Community! 👋 My name is **Nouman** and I'm a **CyberSecurity & Digital Forensics student** and **Fullstack Developer** from Pakistan. ## What I Do I sit at the intersection of two worlds: - 🔐 **Security** — studying real-world attacks, CVEs, digital forensics, malware analysis, and penetration testing - 💻 **Development** — building fullstack web applications with JavaScr...

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1m read
DEV Community • 2026-04-21 04:37

Your First LLMOps Pipeline: From Prompt to Production in One Sprint

AI applications don’t behave like traditional systems. They don’t fail cleanly. They don’t produce identical outputs for identical inputs. And they don’t lend themselves to binary testing pass or fail. Instead, they operate in gradients. Probabilities. Trade-offs. That is precisely why applying standard DevOps or MLOps practices without adaptation often leads to brittle pipelines and unreliable ...

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4m read
DEV Community • 2026-04-21 04:34

TestSprite — localized dev review with feedback

TestSprite 本地化开发测试实战:一次深入的中文环境体验报告 前言 作为一名长期关注前端测试工具的开发者,我最近在实际项目中使用了 TestSprite 进行端到端测试。这篇文章将从开发者视角,详细分享我在中文环境下使用 TestSprite 的真实体验,特别是它在本地化处理方面的表现。 测试环境与项目背景 我选择了一个正在开发的电商管理后台系统作为测试对象。这个项目具有典型的本地化需求: 多时区订单管理 人民币金额显示与计算 中文用户输入验证 日期时间格式化 数字千分位分隔符 技术栈:React 18 + TypeScript + Ant Design TestSprite 安装与配置 安装过程非常顺畅,通过 npm 即可完成: npm install -D testspri...

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2m read
DEV Community • 2026-04-21 04:33

Day 78 of #100DaysOfCode — Introduction to Flask: Setup and First App

Django learning is done, DevBoard is still being finished in parallel, and today, for Day 78, Flask starts. Flask has a reputation for being the opposite of Django in almost every way; where Django gives you everything, Flask gives you almost nothing and lets you choose. Today I set it up, understood what makes it different, and got a first app running. Flask vs Django — The Key Diffe...

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5m read
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