NextGen Threat

Cybersecurity & Tech Insights by Faruk Ahmed

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10 Security Commands Every Linux Admin Should Know (But Probably Doesn’t)

📅 2025-04-16 · ⏱️ 1 min read · 🏷️ Linux, Cybersecurity
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5 Linux Commands Hackers Use (And How to Detect Them on Your Server)

📅 2025-04-30 · ⏱️ 1 min read · 🏷️ Linux, Bash
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5 Linux Hardening Techniques I Apply Before Hosting Any Website

📅 2025-04-28 · ⏱️ 1 min read · 🏷️ Linux
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5 More Techniques to Lock Down Public-Facing Linux Servers

📅 2025-04-28 · ⏱️ 1 min read · 🏷️ Linux
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5 Windows Defender Features You’re Probably Not Using (But Should Be)

📅 2025-05-06 · ⏱️ 1 min read · 🏷️ General
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6 Linux Misconfigurations I Regret Not Catching Sooner

📅 2025-06-10 · ⏱️ 1 min read · 🏷️ Linux, Cybersecurity
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6 Signs Your Linux Server Might Be Compromised (And What to Do Next)

📅 2025-05-01 · ⏱️ 1 min read · 🏷️ Linux
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7 CIS Security Best Practices I Apply on Every Linux Server I Set Up

📅 2025-06-10 · ⏱️ 1 min read · 🏷️ Linux, Cybersecurity
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7 Hidden Backdoors I’ve Found on Compromised Linux Servers (And How to Remove Them) | by Faruk Ahmed | Jul, 2025 | Medium

📅 2025-07-17 · ⏱️ 1 min read · 🏷️ Linux
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7 Linux Security Mistakes I Made (So You Don’t Have To)

📅 2025-04-22 · ⏱️ 1 min read · 🏷️ Linux, Cybersecurity
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7 Things I Check Immediately After Logging Into a Linux Server I Didn’t Set Up | by Faruk Ahmed | Jul, 2025 | Medium

📅 2025-07-21 · ⏱️ 1 min read · 🏷️ Linux, Bash, Python, Cybersecurity
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7 Windows Server Defaults You Should Change Right After Installation

📅 2025-05-04 · ⏱️ 1 min read · 🏷️ Cybersecurity
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8 Log Files Every Linux Admin Should Monitor Daily

📅 2025-04-24 · ⏱️ 1 min read · 🏷️ Linux
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How a Controlled Breach Test Helped Me Harden My Linux Server Instantly | by Faruk Ahmed | Jun, 2025 | Medium

📅 2025-06-30 · ⏱️ 1 min read · 🏷️ Linux
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How I Accidentally Left a Port Open on My Linux Server (And How I Caught It)

📅 2025-05-15 · ⏱️ 1 min read · 🏷️ Linux
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How I Caught a Suspicious Shell Script Running in /tmp (And What It Taught Me)

📅 2025-05-12 · ⏱️ 1 min read · 🏷️ Bash
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How I Found a Hidden Backdoor User Account on My Ubuntu Server (And What I Did About It) | by Faruk Ahmed | Jun, 2025 | Medium

📅 2025-06-28 · ⏱️ 1 min read · 🏷️ General
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How I Found a Hidden Reverse Shell Running as www-data (And What I Did About It) | by Faruk Ahmed | Jul, 2025 | Medium

📅 2025-07-24 · ⏱️ 1 min read · 🏷️ Bash
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How I Found an Unknown Cron Job Mining Crypto on My Ubuntu Server

📅 2025-06-11 · ⏱️ 1 min read · 🏷️ Linux, Bash, Cybersecurity
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How I Harden My Linux Server in 30 Minutes After Every Fresh Install (Ubuntu & Red Hat) | by Faruk Ahmed | Jul, 2025 | Medium

📅 2025-07-11 · ⏱️ 1 min read · 🏷️ Linux, Cybersecurity
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How I Hunt for Silent Rootkits on Linux (Before They Hunt Me) | by Faruk Ahmed | Aug, 2025 | Medium

📅 2025-08-11 · ⏱️ 1 min read · 🏷️ Linux
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How I Rebuild a Linux Server After a Suspected Compromise (Step by Step)

📅 2025-05-29 · ⏱️ 1 min read · 🏷️ Linux, Bash
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How I Spot a Suspicious Process on My Linux Server (Before It Does Damage)

📅 2025-06-06 · ⏱️ 1 min read · 🏷️ Linux, Bash, Python
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How I Use aide to Detect Unauthorized Changes on My Linux and Ubuntu Servers | by Faruk Ahmed | Jul, 2025 | Medium

📅 2025-07-14 · ⏱️ 1 min read · 🏷️ Linux
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How I Use auditd to Catch Hidden Changes on My Linux Server

📅 2025-06-08 · ⏱️ 1 min read · 🏷️ Linux
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How I Use AuditD to Catch Silent Security Threats on Linux

📅 2025-05-08 · ⏱️ 1 min read · 🏷️ Linux, Cybersecurity
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How I Use Bash Scripts to Save Time and Earn More as a Linux Freelancer

📅 2025-05-14 · ⏱️ 1 min read · 🏷️ Linux, Bash
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How I Use Fail2Ban on Ubuntu and Linux to Block Attackers Before They Get In

📅 2025-05-26 · ⏱️ 1 min read · 🏷️ Linux
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How I Use netstat and ss to Catch Suspicious Connections on Linux | by Faruk Ahmed | Jul, 2025 | Medium

📅 2025-07-05 · ⏱️ 1 min read · 🏷️ Linux
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How I Use Python to Make Extra Cash Every Month (Even as a Beginner)

📅 2025-04-15 · ⏱️ 1 min read · 🏷️ Python
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How to Audit a Linux or Ubuntu Server Like a Security Consultant

📅 2025-05-23 · ⏱️ 1 min read · 🏷️ Linux, Bash, Cybersecurity
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How to Audit Your Linux Server for Hidden Threats in Under 15 Minutes

📅 2025-04-21 · ⏱️ 1 min read · 🏷️ Linux
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How to Automatically Lock Out SSH Brute-Force Attacks on Ubuntu and Red Hat

📅 2025-06-03 · ⏱️ 1 min read · 🏷️ Linux
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How to Detect and Block Malicious IPs on Your Ubuntu Linux Server in Real Time

📅 2025-04-17 · ⏱️ 1 min read · 🏷️ Linux
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How to Detect Suspicious Activity on a Linux Server in Under 5 Minutes

📅 2025-05-06 · ⏱️ 1 min read · 🏷️ Linux
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How to Set Up a Honeypot on Your Linux Server to Catch Attackers in Action

📅 2025-04-20 · ⏱️ 1 min read · 🏷️ Linux, Python
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How to Use APIs to Build Money-Making Tools (With Python Examples)

📅 2025-04-14 · ⏱️ 1 min read · 🏷️ Python
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I Taught My Linux Server to Feel Regret — Then Watched It Apologize in Real-Time

📅 2025-05-10 · ⏱️ 1 min read · 🏷️ Linux, Bash, Python
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I Tried Breaking Into My Own Linux Server — Here’s What I Learned About Real-World Security

📅 2025-04-18 · ⏱️ 1 min read · 🏷️ Linux, Cybersecurity
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Immutable Infrastructure on Linux: Why I Don’t Modify Servers After Deployment | by Faruk Ahmed | Aug, 2025 | Medium

📅 2025-08-07 · ⏱️ 1 min read · 🏷️ Linux, Cybersecurity
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The 5 Most Dangerous Linux Services If Left Unsecured

📅 2025-05-18 · ⏱️ 1 min read · 🏷️ Linux
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The 5 Most Overlooked Linux Files That Could Expose Your Server to Hackers

📅 2025-04-20 · ⏱️ 1 min read · 🏷️ Linux, Bash, Cybersecurity
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The Hidden Risks of SSH Agent Forwarding (And How I Avoid Them) | by Faruk Ahmed | Aug, 2025 | Medium

📅 2025-08-17 · ⏱️ 1 min read · 🏷️ Linux
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The Linux Rootkit That Hid in Plain Sight: How I Finally Detected It | by Faruk Ahmed | Jun, 2025 | Medium

📅 2025-06-26 · ⏱️ 1 min read · 🏷️ Linux
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The Linux Service That Almost Let Attackers Slip In (And How I Found It Just in Time) | by Faruk Ahmed | Jun, 2025 | Medium

📅 2025-06-20 · ⏱️ 1 min read · 🏷️ Linux
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1 Linux Command That Saved Me From a Server Meltdown

📅 2025-04-29 · ⏱️ 1 min read · 🏷️ Linux, Python
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The One Linux Security Habit That Exposes You — And How I Fixed It | by Faruk Ahmed | Aug, 2025 | Medium

📅 2025-08-08 · ⏱️ 1 min read · 🏷️ Linux, Cybersecurity
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The One Linux Security Habit That Saved Me From a Silent Breach

📅 2025-05-09 · ⏱️ 1 min read · 🏷️ Linux, Cybersecurity
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The One Log Entry That Made Me Realize My Linux Server Was Being Scanned

📅 2025-05-27 · ⏱️ 1 min read · 🏷️ Linux, Bash
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The Ultimate Fusion: Linux, Ubuntu, and Cybersecurity

📅 2025-06-18 · ⏱️ 1 min read · 🏷️ Linux, Bash, Python, Cybersecurity
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What I Check Every Week to Keep My Linux Servers Safe and Stable | by Faruk Ahmed | Jul, 2025 | Medium

📅 2025-07-07 · ⏱️ 1 min read · 🏷️ Linux
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What I Check First When a Linux Server Starts Acting Suspicious

📅 2025-05-21 · ⏱️ 1 min read · 🏷️ Linux
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What I Do Before Letting Any App Run as Root on My Linux Server

📅 2025-06-04 · ⏱️ 1 min read · 🏷️ Linux, Bash, Cybersecurity
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What I Do the Moment I Suspect My Ubuntu Server Has Been Compromised | by Faruk Ahmed | Aug, 2025 | Medium

📅 2025-08-02 · ⏱️ 1 min read · 🏷️ Linux
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What I Learned Publishing 5 Technical Blogs in 7 Days on Medium

📅 2025-05-31 · ⏱️ 1 min read · 🏷️ Linux, Cybersecurity
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Why I Always Check /etc/sudoers.d on a Compromised Linux Server | by Faruk Ahmed | Jun, 2025 | Medium

📅 2025-06-24 · ⏱️ 1 min read · 🏷️ Linux
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Why I Check for Hidden Processes Every Week on My Linux Servers (And You Should Too)

📅 2025-06-13 · ⏱️ 1 min read · 🏷️ Linux
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Why I Never Trust Pre-Installed Packages on Linux or Ubuntu Servers

📅 2025-06-16 · ⏱️ 1 min read · 🏷️ Linux
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Why I Never Trust Pre-Installed Packages on Linux or Ubuntu Servers

📅 2025-06-02 · ⏱️ 1 min read · 🏷️ Linux, Cybersecurity
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Why I No Longer Trust “Secure by Default” in Linux Server Installs | by Faruk Ahmed | Jul, 2025 | Medium

📅 2025-07-30 · ⏱️ 1 min read · 🏷️ Linux
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Why I Run Multiple SSH Keys Instead of Just One | by Faruk Ahmed | Aug, 2025 | Medium

📅 2025-08-13 · ⏱️ 1 min read · 🏷️ Linux, Cybersecurity
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Why I Set Email Alerts for Every New User Added to My Linux Server (And How You Can Too) | by Faruk Ahmed | Jul, 2025 | Medium

📅 2025-07-02 · ⏱️ 1 min read · 🏷️ Linux
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Why I Treat Every New Linux Server as Already Compromised

📅 2025-05-20 · ⏱️ 1 min read · 🏷️ Linux, Bash
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Why I Use Read-Only Partitions on My Linux Servers (And You Should Too)

📅 2025-05-30 · ⏱️ 1 min read · 🏷️ Linux, Cybersecurity
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Why I Use Read-Only Partitions on My Linux Servers (And You Should Too) | by Faruk Ahmed | Aug, 2025 | Medium

📅 2025-08-05 · ⏱️ 1 min read · 🏷️ Linux
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Why You Should Never Trust Default Configurations on a Fresh Linux Install | by Faruk Ahmed | Jul, 2025 | Medium

📅 2025-07-28 · ⏱️ 1 min read · 🏷️ Linux, Cybersecurity
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Why I Never Trust Default Linux User Accounts (And Neither Should You) | by Faruk Ahmed | Aug, 2025 | AWS in Plain English

📅 2025-08-18 · ⏱️ 1 min read · 🏷️ Linux, Bash
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7 Critical Linux Logs You Should Review After a Security Incident | by Faruk Ahmed | nextgenthreat | Medium

📅 2025-04-29 · ⏱️ 1 min read · 🏷️ Linux, Cybersecurity
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The First 24 Hours After a Linux Breach — My Incident Response Playbook | by Faruk Ahmed | nextgenthreat | Aug, 2025 | Medium

📅 2025-08-17 · ⏱️ 1 min read · 🏷️ Linux, Cybersecurity
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The Hidden Danger of Old Users: Why I Regularly Audit /etc/passwd on My Linux Servers | by Faruk Ahmed | nextgenthreat | Jul, 2025 | Medium

📅 2025-07-26 · ⏱️ 1 min read · 🏷️ Linux