Trivy on macOS: Install It, Verify It, Run It
Manny FernandezWhat Trivy Is and Why You Want It Trivy is Aqua Security's open source, all-in-one scanner: one binary that finds...
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Red Team Tool Series: Six DNS Recon Utilities Every Practitioner Should Own
Manny FernandezExecutive Summary Objective: Give you a working reference for six classic DNS reconnaissance and auditing utilities. For each tool you...
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Blue Team Tool Series: “arpwatch” on Ubuntu 24.04: Layer 2 Change Detection That Still Earns Its Keep
Manny FernandezExecutive Summary ARP has no authentication. Any host on a broadcast domain can claim any IP address, and every neighbor...
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Blue Team Tool Series: Logwatch Deep Dive: Turning /var/log Noise Into a Daily Security Briefing
Manny Fernandez1. Executive Summary Every Linux box you own is writing a diary nobody reads. auth.log, syslog, secure, mail.log, the journal:...
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Red Team Tool Series: “tcpflow” Read the Conversation, Not the Packets
Manny FernandezExecutive Summary tcpdump shows you packets. Most of the time, what you actually care about is what the two endpoints...
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How HTTPS Works: From ClientHello to Encrypted GET
Manny FernandezA practitioner walk-through of DNS, TCP, TLS 1.3, certificates, and the record layer, with the commands to watch every step...
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The Practical Guide to APT: From Cross-Distro Setup to CLI Mastery
Manny FernandezExecutive Summary Objective: Give you a working command of APT (Advanced Package Tool): which distributions ship it by default, how...
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RADIUS Deep Dive: What Actually Happens After You Click Connect
Manny FernandezYou have configured it a dozen times. Server IP, shared secret, Test Connectivity, green check, move on. RADIUS is the...
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FortiGate IKEv2 Remote Access with EAP: What Actually Happens on the Wire
Manny FernandezExecutive Summary Objective: Walk through every message a FortiGate exchanges when a remote user connects over a dial-up IKEv2 tunnel...
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MacPorts vs. Homebrew: Choosing a macOS Package Manager in 2026
Manny FernandezTwo philosophies, one Terminal. What actually differs, what changed this year, and which one belongs on your Mac. Objective: Explain...
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IOS Focus Mode: Enabling, Configuring or Disabling it.
Manny FernandezExecutive Summary Objective: Understand every path that activates a Focus on an iPhone, configure Focus so it only silences what...
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FortiGate BFD: What It Is, When to Use It, and How to Configure It
Manny FernandezObjective: Understand Bidirectional Forwarding Detection on FortiOS, decide where it belongs in your design, and configure it for BGP, OSPF,...
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DHCP Snooping Deep Dive Building the Binding Table That Your Entire Layer 2 Security Stack Depends On
Manny FernandezField Detail Objective Explain exactly what DHCP snooping inspects, what it drops, and what it builds, then deploy it end...
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Microsoft Word for macOS: Sticking the Formatting for multiple updates
Manny FernandezThe short version Single-click the Format Painter and it applies your formatting once. Double-click it and it stays locked on,...
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The FortiGate as an SSH Client: Jump Hosts, Source Pinning, and Port Probes with execute ssh
Manny FernandezObjective: Use the FortiGate CLI as an outbound SSH client to reach servers, switches, and access points behind the firewall,...
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Ghidra Zero to Hero: A Practitioner’s Guide to the NSA’s Reverse Engineering Framework
Manny FernandezObjective: Get Ghidra installed correctly, analyze your first stripped binary end to end, and automate the boring parts with the...
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Homebrew Under the Hood: File Structure, Environment Variables and the Plumbing Behind brew
Manny FernandezExecutive Summary Objective: map every directory Homebrew writes to, show which environment variables steer it, and trace a brew install...
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Homebrew Is Not Just for Linux Utilities
Manny FernandezTurning brew into the control plane for your entire Mac: desktop apps, fonts, services, App Store installs, and a replayable...
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Quick Tip: Renaming your zsh prompt on your macOS
Manny FernandezQuick-Tip The default macOS zsh prompt prints your username, your hostname, the current folder, and a percent sign. On a...
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Txt2Task – Import a ASCII list of tasks into Apple Reminders
Manny FernandezExecutive summary. After Apple significantly upgraded Reminders, I finally made the jump from OmniFocus. What I did not want to...
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