Vamshikrishna

[Tech Fusionist | Kushal Gangil @techyoutbe]

Azure DevOps (Visually Explained)

[Ahmedkhan @Ahmed___khaan]

FortiGate Firewall: Block an IP

Client IP
→ 192.168.10.50
→ FortiGate Firewall
→ Access Control Policy
→ Action: DENY
→ Traffic Blocked

Check
→ Source IP
→ Destination
→ Service
→ Policy
→ Logs

FortiGate logs confirm the traffic is blocked.

Configure → Deploy → Verify

[Edgar C Francis @edgarcfrancis]

What is Private VLAN? How to configure Private VLAN? #PVLAN

https://t.co/ayNJwFbVui

[Tech Fusionist | Kushal Gangil @techyoutbe]

Database is slow.

is the database actually the problem? Let's understand it visually!

[Edgar C Francis @edgarcfrancis]

What is Smurf attack DDoS attack? How to configure Smurf attack?

https://t.co/Ib4qOjK79C

[AsyncTrix @asynctrix]

An IAM Role can have all the permissions it needs…

…and still be unusable. 🔐

The reason is simple:

Trust Policy → WHO can assume the role

Permission Policy → WHAT the role can do

Think of it this way:

Trust gets you INTO the role.
Permissions define what you can do AFTER you're in.

A common IAM mistake is giving a role permissions but forgetting to allow the intended principal to assume it.

Result? The permissions exist, but the intended principal can't use them.

Understanding this difference makes IAM Roles much easier to reason about.

Trust Policy vs Permission Policy - which one confused you more? 👇

[LetsDefend @LetsDefendIO]

Phishing 101

[Gauri Tripathi @GauriTripa94282]

RAG from Scratch

RAG helps LLMs generate better answers using external knowledge.

☑︎ Document → Parse → Chunk → Embed → Store

☑︎ Query → Embed → Semantic Search → Retrieve

☑︎ Relevant Chunks + Query → Context
Context → LLM → Response

Bookmark this!
#AI #LLM

[Ahmedkhan @Ahmed___khaan]

Ping vs. Traceroute: Quick Cheat Sheet

Ping: Checks if a host is reachable, measures basic latency, and tracks packet loss.

Traceroute: Maps the full path hop-by-hop to pinpoint where delays or drops happen.

Rule of thumb: Use Ping to see if it works; use Traceroute to see where it breaks.

Save this for quick network troubleshooting!

[International Cyber Digest @IntCyberDigest]

‼️ BREAKING: Nightmare-Eclipse just released another zeroday, this time a proof-of-concept called FalconFlank, which claims a local privilege-escalation flaw in CrowdStrike Falcon — abusing the sensor's own malicious-Office-macro remediation to reach SYSTEM on fully updated Windows 11 25H2 and Server 2025.

https://t.co/yNJeUFHZkI

[Python Crafted @PythonCrafted]

🚀 System Design Concepts Every Software Engineer Should Know!

From oad Balancers and Caching to Microservices, Message Queues, Search Systems, Notifications, Real-time Analytics — these are the building blocks behind scalable applications like Netflix, Amazon, Uber,...

[Alex Xu @alexxubyte]

MCP vs RAG vs AI Agents

[7h3h4ckv157 @7h3h4ckv157]

The Rise of AI Pentesting Agents: A Technical Analysis (2026)

Written by Suphi Cankurt
Source: https://t.co/CY8eL7A3Qm

[Daily Dose of Data Science @DailyDoseOfDS_]

8 RAG architectures for AI Engineers, visually explained:

[Rspect @rspect24]

Some commands are worth knowing.
Even if you never use them.🙄

[Alex Xu @alexxubyte]

What keeps the Internet running.

We probably forget they exist until the day something breaks.

[LetsDefend @LetsDefendIO]

Components and Capabilities of SIEM

[Alex Xu @alexxubyte]

What Is Harness Engineering, Explained Visually.

[LetsDefend @LetsDefendIO]

Linux Basic Commands

[LetsDefend @LetsDefendIO]

What is DoS Attacks