Category Archives: InfoSec-General

10 April, 2026

Anatomy of a malware attack

Analyze a phishing attachment with FortiSandbox to detect Playwright-based browser automation attacks and understand dangerous Edge flags.

6 March, 2026

Netcat As A Tool

Learn netcat port scanning and how to install netcat-traditional. Configure listeners, test UDP ports, and transfer data with these working commands.

7 January, 2020

What Diffie-Hellman (DH) Group Should I Use

Learn Diffie-Hellman group selection for secure VPNs. Choose the right DH group for AES 128 or 256-bit keys and avoid weak groups like 24.

11 December, 2019

Complex Passwords for your Fortigate Firewall

Enforce FortiGate password complexity for NIST and PCI DSS compliance. Configure CLI password policies and enable 2FA for admin accounts.

7 September, 2019

How we used Fortinet to host a CTF (Capture the Flag)

Configure a Fortinet CTF network setup using FortiGate security profiles, FortiSwitch segmentation, and FortiAnalyzer logging for event monitoring.

25 July, 2019

Managing Guest Users in Fortigate Firewalls

Learn Fortigate guest user management by creating user groups and restricted administrators. Configure wireless and wired captive portals for secure guest access.

2 June, 2019

Troubleshooting Fortigate HA

Troubleshoot FortiGate HA sync issues using CLI commands. Identify config mismatches with diagnose sys ha checksum and fix chassis unit sync problems.

15 May, 2019

UPDATED – Certificate Pinning you SSL VPN with Microsoft CA and Fortigate Forticlient Using ‘user’ certificates

Configure FortiGate SSL VPN certificate pinning using Microsoft CA and OCSP. Secure access with user certificates and FortiClient for trusted devices.

1 May, 2019

Perimeter Switch Configuration with Fortiswitch (Non-Fortilink)

Configure Fortiswitch standalone mode for perimeter Layer 2 switching. Learn to set up VLANs and ports for multiple ISPs without FortiLink.

25 April, 2019

Basic Deployment of FortiNAC – Part 1

Deploy the FortiNAC OVA file, register your license, and configure basic networking. Follow this step-by-step guide to get your FortiNAC instance running.

24 April, 2019

Installing Greenbone Vulnerability Manager

Install Greenbone Vulnerability Scanner on CentOS 7. Follow this step-by-step guide to deploy the scanner, configure the firewall, and access the web GUI.

21 March, 2019

Fortigate in One-Arm Sniffer Mode

Configure Fortigate one-arm sniffer mode for passive traffic analysis. Includes Cisco switch monitor session setup and CLI commands for sniffer profiles.

24 January, 2019

Locking down your network DNS traffic using Fortinet

Secure your network with a Fortigate DNS security policy. Learn to configure recursive DNS or FortiGuard forwarders and block unauthorized egress traffic.

26 September, 2018

BSides Miami 2018 Inaugural Conference

Read the recap of the BSides Miami 2018 inaugural conference. Learn about the founding process, crypto talks, and plans for future events.

3 April, 2017

Future Crimes By Marc Goodman

Read this Future Crimes book review to learn why the text contains factual errors about Ross Ulbricht and Scott Levine. Avoid the misinformation.

18 November, 2016

Data Breaches October / November 2016

Review the 2016 data breaches list for October and November. Analyze the FriendFinder, GitHub, and DealerBuilt hacks to understand compromised data types and attack...

21 October, 2016

Personal Information Security Hygiene Program

Implement a personal information security hygiene program. Use 1Password for unique credentials, secure Facebook settings, and protect backups against basic attacks.

14 October, 2016

QuickHash Multi-Platform Hashing Tool

Use QuickHash GUI file hashing to verify downloads and baseline folders. Learn to compute SHA-256 checksums and validate integrity on Windows, macOS, and Linux.