Brody Kilpatrick

Senior Architect - IT Security and Compliance at TPC Group. Houston, Texas.

My name is Brody Kilpatrick, my Github profile is Lone Star Coder (https://github.com/LoneStarCoder). I am currently employed as Senior Architect - Security and Compliance. I have historically performed tasks mostly related to identity, architecture, server administration, firewalls, and process.

Read more about my background and full work history on the About page.

Recent Blog Posts

Here is a very quick and easy way to check which version of PHP a public website is presenting

Use curl.exe -k -I -L to inspect response headers from a public site and quickly identify the exposed PHP version. October 26, 2026

How to install a simple postfix relay on Red Hat Linux

A primer on setting up the simplest possible Postfix relay on Red Hat Linux, including adding a custom mail header to every message that traverses the relay. October 24, 2025

Create a Simple RAG System with AnythingLLM and LMStudio

This beginner-friendly tutorial guides you through building a local Retrieval-Augmented Generation (RAG) system without writing code, running entirely on your own hardware for complete privacy and control. October 9, 2025

Powershell Script to Get Copilot Package Registry image

September 24, 2026

Query Windows Firewall Rules ONLY from GPO

A PowerShell script that will only retrieve firewall rules that were created via an Active Directory GPO or the local security policy. August 18, 2022

Make the Windows Defender Firewall Log Useful with PowerShell

A small PowerShell script to parse the Windows Firewall log into an array. August 16, 2022

Some Notes on Exchange 2019 and Preparing AD

Notes from recent experience preparing AD for Exchange 2019 and the commands used, since the official documentation was incomplete. October 15, 2021

See the full list of 137 posts.

Latest Article / Document

The Name Resolution Trinity: mDNS, LLMNR & NBT-NS Attack Surface.

The combination of mDNS, LLMNR, and NBT-NS creates a devastating attack surface that allows adversaries to poison name resolution, capture credentials, and establish persistence in enterprise networks. July 11, 2025

Past Blogs

Brody Kilpatrick Blog (WordPress) and the IT-related posts from my Blogger blogs (Operations Manager 2012, System Center Service Manager, Brody’s IT Tasks, and my main Brody Kilpatrick blog) have all been imported into this static site.

There is more history, but some have been abandoned.

Images / Graphics / Memes