Luke Hebert
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Articles

Welcome to the articles section, where business, technology, and everyday problem-solving meet. You’ll find practical how-tos, troubleshooting notes from the trenches, and the occasional take on whatever’s happening in the world. Some posts will save you time, some will spark ideas, and a few will just be me thinking out loud. Grab a coffee and dig in.

IPv4 Kernel Stack Optimizations September 7, 2021

IPv4 Kernel Stack Optimizations

A practical walkthrough for tuning Linux TCP/IP stack parameters, from selecting a congestion control algorithm to applying sysctl settings for high-throughput workloads.
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Kafka Dump August 25, 2021

Kafka Dump

A practical walkthrough for dumping Kafka topic data, including a generic consumer approach and a full Atlas-specific workflow covering JAAS configuration, Kerberos authentication, and log extraction.
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Dump Kafka Atlas Topic to Review Messages August 20, 2021

Dump Kafka Atlas Topic to Review Messages

A quick walkthrough for dumping the ATLAS_HOOK Kafka topic to inspect Atlas hook messages locally, including Kerberos authentication setup and consumer lag checks.
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Hive Bundle Logs August 19, 2021

Hive Bundle Logs

Hive bundle logs in a cloud data warehouse are stored under a predictable S3 path. Knowing where to look saves time when troubleshooting query performance or diagnosing failed jobs.
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Deploy CFSSL CA Server August 2, 2021

Deploy CFSSL CA Server

A step-by-step guide to deploying a CFSSL-backed certificate authority with PostgreSQL storage, OCSP responder, and CRL distribution. Covers installation, CA initialization, service configuration, and Nginx reverse proxy setup.
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AWS ARN Structure July 29, 2021

AWS ARN Structure

Every AWS resource is uniquely identified by an Amazon Resource Name (ARN) used in IAM policies, API calls, and resource references. This post breaks down the standard ARN format into its individual components for easy reading and construction.
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