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ZeroTrust Architect

Network & Security Engineer with over 20 years of experience

Location UK Joined Joined on 

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Freelance Network & Security Engineer

IPsec vs TLS VPN: Protocol Mechanics, Port Behaviour, and When Each One Breaks
goodguy11 profile

IPsec vs TLS VPN: Protocol Mechanics, Port Behaviour, and When Each One Breaks

#security #networking #devops #linux
Comments
3 min read

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TLS Handshake to Reverse Proxy: How HTTPS Works End-to-End in a Production Network
goodguy11 profile

TLS Handshake to Reverse Proxy: How HTTPS Works End-to-End in a Production Network

#security #webdev #networking #devops
Comments
3 min read
TLS Interception at the Gateway: Certificate Chains, SNI, and the SSL Pinning Problem
goodguy11 profile

TLS Interception at the Gateway: Certificate Chains, SNI, and the SSL Pinning Problem

#security #networking #webdev #linux
Comments
3 min read
How HTTPS Works: A Simple Explanation of Secure Web Communication
goodguy11 profile

How HTTPS Works: A Simple Explanation of Secure Web Communication

#cybersecurity #networking #security #webdev
Comments
3 min read
IPsec vs SSL VPN: What’s the Difference and Which One Should You Use?
goodguy11 profile

IPsec vs SSL VPN: What’s the Difference and Which One Should You Use?

#cybersecurity #networking #vpn #security
Comments
3 min read
Endian Firewall's Fork Lineage and Feature Gaps: A Technical Assessment
goodguy11 profile

Endian Firewall's Fork Lineage and Feature Gaps: A Technical Assessment

#security #networking #opensource #devops
Comments
2 min read
Smoothwall Express in 2026: What "No Major Release Since 2014" Means for a Security Appliance
goodguy11 profile

Smoothwall Express in 2026: What "No Major Release Since 2014" Means for a Security Appliance

#security #networking #opensource #linux
Comments
3 min read
Untangle's Plugin Architecture: Dependency Compatibility and the True Cost of Modular Pricing
goodguy11 profile

Untangle's Plugin Architecture: Dependency Compatibility and the True Cost of Modular Pricing

#security #networking #devops #opensource
Comments
2 min read
FortiGate ASIC vs Commodity Hardware: Where Dedicated Processing Matters and Where It Doesn't
goodguy11 profile

FortiGate ASIC vs Commodity Hardware: Where Dedicated Processing Matters and Where It Doesn't

#security #networking #devops #hardware
Comments
3 min read
OPNsense Plugin Compatibility on FreeBSD: What Breaks and Why
goodguy11 profile

OPNsense Plugin Compatibility on FreeBSD: What Breaks and Why

#security #networking #opensource #bsd
Comments
3 min read
FreeBSD vs Linux Network Stack for Security Appliances: Kernel Differences That Matter Operationally
goodguy11 profile

FreeBSD vs Linux Network Stack for Security Appliances: Kernel Differences That Matter Operationally

#networking #linux #security #devops
Comments
2 min read
Sophos XGS Feature Architecture: What Requires Proprietary Hardware and What Doesn't
goodguy11 profile

Sophos XGS Feature Architecture: What Requires Proprietary Hardware and What Doesn't

#security #networking #devops #opensource
Comments
2 min read
Cloud-Managed vs On-Premises Network Security: Management Plane Architecture Compared
goodguy11 profile

Cloud-Managed vs On-Premises Network Security: Management Plane Architecture Compared

#networking #security #devops #cloud
Comments
3 min read
ModSecurity and the OWASP Core Rule Set: How WAF Rules Actually Work
goodguy11 profile

ModSecurity and the OWASP Core Rule Set: How WAF Rules Actually Work

#security #webdev #opensource #devops
Comments
3 min read
What a UTM Actually Does at the Packet Level (And Why Your Router's Firewall Isn't One)
goodguy11 profile

What a UTM Actually Does at the Packet Level (And Why Your Router's Firewall Isn't One)

#security #networking #devops #opensource
Comments
3 min read
Startup Network Security: A Practical Foundation Checklist
goodguy11 profile

Startup Network Security: A Practical Foundation Checklist

#cybersecurity #networking #security #devops
Comments
3 min read
Open Source Firewall for Small Business: What You Should Actually Know
goodguy11 profile

Open Source Firewall for Small Business: What You Should Actually Know

#cybersecurity #networking #security #opensource
Comments
2 min read
Network Security Checklist for Startups: 10 Essential Steps
goodguy11 profile

Network Security Checklist for Startups: 10 Essential Steps

#cybersecurity #networking #security #startup
Comments
3 min read
pfSense vs CacheGuard: Choosing Between Flexibility and Functionality
goodguy11 profile

pfSense vs CacheGuard: Choosing Between Flexibility and Functionality

#networking #security #opensource #selfhosted
Comments 1
3 min read
Self-Hosted VPN: Benefits, Trade-Offs, and When It Makes Sense
goodguy11 profile

Self-Hosted VPN: Benefits, Trade-Offs, and When It Makes Sense

#vpn #cybersecurity #networking #infrastructure
Comments
2 min read
How a VPN Actually Works (Packet-Level Architecture Explained with CacheGuard)
goodguy11 profile

How a VPN Actually Works (Packet-Level Architecture Explained with CacheGuard)

#vpn #networking #cybersecurity #infrastructure
Comments
2 min read
🏠 I Stopped Using Commercial VPNs After Building My Own (Here’s Why)
goodguy11 profile

🏠 I Stopped Using Commercial VPNs After Building My Own (Here’s Why)

#vpn #security #cybersecurity #infrastructure
Comments
2 min read
Most Small Businesses Still Don’t Have a Real Firewall (And It’s a Problem)
goodguy11 profile

Most Small Businesses Still Don’t Have a Real Firewall (And It’s a Problem)

#cybersecurity #networking #linux #opensource
Comments
2 min read
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