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The CyberSec Guru
@thecybersecguru.com
Cybersecurity Analyst... a.k.a The CyberSec Guru
🔐 Struggling with “Permission denied” on Linux?

I broke down file permissions in a simple, practical way:
✔ RWX explained
✔ chmod (symbolic + numeric)
✔ When to use 644 / 755 / 600
✔ setuid, setgid, sticky bit
✔ umask basics

Full guide: urls.grow.me/e4qcOX6xX2?u...

#Linux #CyberSecurity
The Ultimate Guide to Linux File Permissions | The CyberSec Guru
Stop being confused by chmod 755! This complete guide demystifies Linux file permissions. Master chmod, chown, rwx, setuid, umask and more!
urls.grow.me
November 13, 2025 at 5:36 PM
Dev wants speed.
Ops wants stability.
And the business keeps asking for both.

This clash is the root of half the chaos in tech teams.

I broke down the real Dev vs Ops conflict and how to fix it without choosing sides.

Read here 👇
urls.grow.me/grtzAtjPZ3?u...

#DevOps #SRE #EngineeringLeadership
Dev vs. Ops: How to Break the Core, Chronic Conflict (An Ultimate Guide) | The CyberSec Guru
An ultimate guide to the 'core, chronic conflict' between Dev and Ops, based on 'The DevOps Handbook.' We dissect the misaligned goals, the downward spiral, and how 'technical debt' becomes the key sy...
urls.grow.me
November 13, 2025 at 12:13 PM
🚨 Ever been paged at 3 AM for a broken deploy? That’s not bad luck—it’s bad systems thinking.

Your real “Aha!” moment in DevOps isn’t when things break… it’s when you realize Dev vs Ops was never the problem — the wall between them was.

Read: 👉 urls.grow.me/n9FBfiafbo?u...

#DevOps #SRE #CICD
Why DevOps? The 'Aha!' Moment That's Redefining IT (An Ultimate Guide) | The CyberSec Guru
A deep dive into the 'why' of DevOps. We explore the 'aha' moment that shifted IT from a tactical cost center to a strategic powerhouse.
urls.grow.me
November 12, 2025 at 4:25 PM
🚨 Preparing for cybersecurity interviews in 2025?

Don’t go in blind.

Here’s a free guide packed with must-know questions, answers & cheat sheets:

urls.grow.me/Xly_XYRjyG?u...

#CyberSecurity #InfoSec #CareerPrep
The Ultimate 2025 Cybersecurity Interview Questions Guide | The CyberSec Guru
Nail your next cyber interview! Get our FREE 2025 study guide with 100+ questions on networking, cloud, Zero Trust, and more. Download Now!
urls.grow.me
November 11, 2025 at 3:42 PM
🕵️‍♂️ Dive deep into your network’s secret life!

📘 The Ultimate Wireshark Guide — capture, decode & analyze packets like a pro. No fluff. Just practical network forensics & analysis tips.

Free download 👉 urls.grow.me/HOrGfQsuTG?u...

#Wireshark #CyberSecurity #Networking #Infosec
The Ultimate Wireshark Guide: From Network Novice to Packet Pro | The CyberSec Guru
Master network analysis with my ultimate Wireshark guide for 2025. Learn to capture packets, use filters, detect threats like MITM and more!
urls.grow.me
November 11, 2025 at 7:08 AM
🧠 Tired of “Permission Denied”?
🔥 Grab The Ultimate Linux Server Configuration Guide — FREE!

From mastering permissions to hosting your own web & MySQL servers, this 72-page guide covers it all.

💻 Download now → urls.grow.me/JsW6K03Q2d?u...

#Linux #SysAdmin #DevOps #CyberSecurity #OpenSource
Ultimate Linux Server Configuration Guide | The CyberSec Guru
Master your Linux server. Our ultimate guide covers setup, essential commands, file permissions and more. Download the full 72-page PDF!
urls.grow.me
November 10, 2025 at 2:31 PM
🔥 Ever wondered how Linux actually keeps one process from eating your whole CPU?

Meet cgroups — the kernel’s secret sauce behind Docker, K8s & systemd.

Learn how they isolate, limit, and monitor CPU, memory & I/O like magic 👇

urls.grow.me/sRcvdBZm0i?u...

#Linux #DevOps #Kubernetes #SysAdmin
The Ultimate Guide to Linux Cgroups (v1 & v2): From Basics to Advanced Orchestration | The CyberSec Guru
A comprehensiveguide to Linux Cgroups. Master resource management, from cgroup v1 and v2 fundamentals to practical uses and more!
urls.grow.me
November 10, 2025 at 6:16 AM
Cut your busy-work in half: check out my new guide to automating EVERYTHING with n8n 🔧📊 — from Gmail workflows to full-scale integrations.

thecybersecguru.com/glossary/the...

#automation #nocode #n8n
The Ultimate n8n Guide (2025): From Beginner to Pro Automation | The CyberSec Guru
The only n8n tutorial you'll ever need. This guide covers self-hosting, JSON, all nodes, AI agents, Google Cloud setup, and advanced patterns.
thecybersecguru.com
October 25, 2025 at 4:22 PM
🚀 Ready to level up your Linux skills?

The Ultimate Linux Command Guide is your one-stop resource—from beginner basics to pro-level tricks.
Master navigation, file management, permissions, networking, and more with clear, hands-on examples.

thecybersecguru.com/glossary/ult...

#Linux
The Ultimate Guide to Mastering Linux Commands (From Beginner to Pro in 2025) | The CyberSec Guru
Stop searching. This is the last Linux command guide you'll ever need. A masterclass covering navigation, file management, processes, networking.
thecybersecguru.com
October 24, 2025 at 9:00 PM
Want to future-proof your DevOps career in 2025? 🛠️
Check out this Ultimate DevOps Roadmap — from Python & Linux fundamentals ➝ GitOps, Service Mesh, Observability & more 🔍

Start small. Build deep. Iterate forever.

🔗 thecybersecguru.com/devops/ultim...

#devops
Essential DevOps Roadmap: Skills for 2025 and Beyond | The CyberSec Guru
Master the Ultimate DevOps Roadmap! This post covers key practices, tools, and strategies to enhance your DevOps journey and more!
thecybersecguru.com
October 9, 2025 at 4:56 PM
Tired of giving up Windows apps when you switch to Linux? 🚀 Meet Winboat — it runs real Windows apps like Photoshop, Office & more, directly on your Linux desktop. No VM walls. No compromises.

👉 thecybersecguru.com/tutorials/ru...

#Linux #TechTips #Winboat
How to Run Any Windows App on Linux Using Winboat | The CyberSec Guru
Ditching Windows for Linux but can't leave your favorite apps behind? This guide shows you how to run any Windows app on Linux using Winboat
thecybersecguru.com
October 8, 2025 at 4:21 PM
🚀 Tired of bloated desktops on your Ubuntu Server? Set up KVM & Virt-Manager headless with SSH X11 forwarding for ultimate VM control! Step-by-step guide for self-hosters & pros. No excuses—level up your homelab now! 🔒💻

thecybersecguru.com/self-hosting...

#SelfHosting
The Ultimate Guide to Installing KVM & Virt-Manager on Ubuntu Server 22.04 | The CyberSec Guru
A complete, step-by-step guide to setting up a headless virtualization server. Learn to install KVM, QEMU, Libvirt, and Virtual Machine Manager
thecybersecguru.com
October 5, 2025 at 4:52 PM
🔒 October is #CybersecurityAwarenessMonth! Level up your digital defense with this FREE 5-Step Starter Kit:

1. Unbreakable passphrases + manager
2. Enable 2FA NOW
3. Spot phishing tricks
4. Auto-update everything
5. VPN on public Wi-Fi

Who's in?

Read more: thecybersecguru.com/cybersecurit...
Your 5-Step Cybersecurity Starter Kit for 2025 | The CyberSec Guru
Kick off Cybersecurity Awareness Month with 5 essential, easy-to-follow steps to secure your digital life. Protect your passwords, dodge scams, and stay safe online.
thecybersecguru.com
October 3, 2025 at 6:22 PM
Just published: "The Virtual Switch: A Step-by-Step Guide to KVM Networking with Netplan" Learn how to create a network bridge on Ubuntu for your KVM VMs—detach interfaces, configure YAML, apply changes safely. Perfect for self-hosters!

#Ubuntu #KVM #Netplan #SelfHosting
The Ultimate Guide to KVM Network Bridge Setup on Ubuntu with Netplan | The CyberSec Guru
A complete, beginner-friendly guide to creating a network bridge on Ubuntu Server for KVM/QEMU virtual machines. Learn the theory of network bridge
thecybersecguru.com
October 3, 2025 at 6:47 AM
If you're paying for fiber-like speed and getting 1/10th during prime time, this one's for you. Airtel AirFiber: myth vs reality.

thecybersecguru.com/reviews/airt...

#BadService #AirtelAirFiber #Airtel #Scam
Airtel AirFiber Review: A Scam? The Truth About Speeds & Support | The CyberSec Guru
An in-depth, critical review of Airtel AirFiber. Learn about the real speeds vs. the 100Mbps promise, the peak hour failures, terrible customer support
thecybersecguru.com
September 22, 2025 at 3:37 PM
VMs are the fortress. Containers are the apartment block. Which would you trust with your digital kingdom? 🏰 In the battle for security, isolation & backups, the choice might surprise you → thecybersecguru.com/self-hosting...
#HomeServer #CyberSec #VMsVsContainers
VMs vs. Containers: The Ultimate Guide for Your Home Server | The CyberSec Guru
The definitive guide to choosing between Virtual Machines (VMs) and Containers (Docker) for your self-hosted services. Learn the core concepts
thecybersecguru.com
September 21, 2025 at 6:56 PM
🔒 Small business owners: still think cyberattacks only hit the big players? Think again. You’re a prime target. Use this checklist to lock down your digital fortress in 2025: asset inventory ✔️ MFA ✔️ backups ✔️ firewall & more. 👉
#Cybersecurity #SMB
The Ultimate Small Business Cybersecurity Checklist (2025 Guide) | The CyberSec Guru
Protect your business from crippling cyberattacks with our ultimate 2025 cybersecurity checklist. A step-by-step, in-depth guide covering everything
thecybersecguru.com
September 21, 2025 at 2:40 PM
🔒 In 2025, Big Tech & hackers are watching—fight back with PGP encryption! This ultimate guide shows you how to secure emails, manage keys, & integrate tools like Signal for unbreakable privacy. Don't get exposed! 🚨 #CyberSecurity #Privacy #Encryption thecybersecguru.com/tutorials/co...
Complete PGP Encryption Guide 2025 | The CyberSec Guru
Complete PGP encryption guide, secure messaging, and privacy protection techniques. Complete 2025 guide with step-by-step tutorials and more
thecybersecguru.com
September 11, 2025 at 6:41 AM
🏰 Unlock your kingdom from anywhere!
he Ultimate pfSense OpenVPN Guide for 2025 just dropped
Learn to set up secure, encrypted remote access to your home network—whether you're on mobile, traveling, or securing your smart devices.
#CyberSecurity #pfSense #OpenVPN #RemoteAccess #SelfHosting
The Ultimate pfSense OpenVPN Guide | The CyberSec Guru
The only guide you'll ever need to set up a secure OpenVPN server on pfSense. This step-by-step tutorial covers everything you need to configure it
thecybersecguru.com
September 10, 2025 at 6:54 PM
🛡️ Ready to reclaim your digital peace?
The CyberSec Guru just dropped a banger post!
Level up your ad & tracker blocking—network-wide, browser-independent—covering everything from smart TVs to guest phones.
Say goodbye to the noise.

#SelfHosting #pfSense #pfBlockerNG #AdBlocking #InternetSecurity
The Ultimate pfBlockerNG Tutorial for pfSense | The CyberSec Guru
A complete, step-by-step guide to installing and configuring pfBlockerNG on pfSense for network-wide ad, tracker, and malware blocking
thecybersecguru.com
September 10, 2025 at 6:17 PM
🚀 Ready to build your own secure home network? Dive into this ultimate pfSense beginner's guide: Step-by-step initial setup, avoid common pitfalls like Double NAT, and master DHCP/DNS for self-hosting pros! 🔒

thecybersecguru.com/self-hosting...

#pfSense #SelfHosting #CyberSecurity #Networking
The Ultimate pfSense Configuration Guide for Beginners (2025) | The CyberSec Guru
A complete step-by-step guide to the essential pfSense configuration. Learn to assign interfaces, configure WAN/LAN, master the setup wizard of it
thecybersecguru.com
August 29, 2025 at 6:38 PM
Tired of overpriced, insecure routers? Build your own enterprise-grade firewall with pfSense using a repurposed PC! Step-by-step guide: Hardware picks, genuine Intel NIC tips, easy USB install & ZFS setup. Level up your home network security! 🛡️🔥 #pfSense #SelfHosting #CyberSecurity #Homelab
How to Build and Install a pfSense Router: The Ultimate 2025 Guide | The CyberSec Guru
A complete, beginner-friendly guide to building and installing a pfSense router from scratch. Learn how to choose the right hardware for pfSense
thecybersecguru.com
August 28, 2025 at 10:32 AM
Is your home router waiting to get hacked? 🚨 Relying on consumer junk is like hiring a mall cop to guard Fort Knox. Build a pfSense firewall for unbreakable security, transparency, and total control in 2025! 🔒 Why & how: thecybersecguru.com/self-hosting...
#CyberSecurity #pfSense #SelfHosting
Why Build a Router? The Definitive Case for a pfSense Firewall in 2025 | The CyberSec Guru
Stop trusting your security to consumer routers. This in-depth guide explains why building a pfSense router is the most critical investment for you
thecybersecguru.com
August 25, 2025 at 5:11 PM
🔐 Unlock the power of self-hosting! This epic guide breaks down how to set up a secure home network like a pro. Say goodbye to Big Tech's grip on your data! 💻 #SelfHosting #NetworkSecurity #TechTips 👉 thecybersecguru.com/self-hosting...
Networking 101: The Ultimate Beginner's Guide to Home Network Setup for Self-Hosting | The CyberSec Guru
Master the fundamentals of home networking. This definitive guide explains modems, routers, switches, WAPs, and IP addresses in plain English
thecybersecguru.com
August 24, 2025 at 4:32 PM
Tired of Big Tech treating you like the product? 🚫🔒 Reclaim your digital sovereignty with this EPIC roadmap to self-hosting! Build your own cloud, ditch Google/Apple lock-ins, and own your data forever. Step-by-step guide inside!
#SelfHosting #Privacy #DigitalFreedom
Your Roadmap to a Self-Managed Digital Life: The Ultimate Guide to Digital Sovereignty | The CyberSec Guru
Begin your journey to digital freedom. This definitive guide explains why you need a self-managed life, how to escape Big Tech's control, and more
thecybersecguru.com
August 24, 2025 at 1:23 PM