Luke Hebert
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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.

Wireshark SSL Filters: Cutting Through the Crypto Noise August 30, 2024

Wireshark SSL Filters: Cutting Through the Crypto Noise

A collection of useful Wireshark display filters for analyzing SSL/TLS handshake traffic, including a reference table of handshake message types and notes on cipher suite considerations.
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Docker/Kubernetes Network Diagnostic Tools August 26, 2024

Docker/Kubernetes Network Diagnostic Tools

A practical guide to using the netshoot container for Docker and Kubernetes network troubleshooting. Covers network namespaces, tcpdump examples, and real-world diagnostic workflows.
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How to Get the Most Out of Postgres Memory Settings June 12, 2024

How to Get the Most Out of Postgres Memory Settings

A practical guide to tuning Postgres memory parameters including shared_buffers, work_mem, and maintenance_work_mem. Learn how to measure actual usage, avoid out-of-memory crashes, and balance allocations for optimal performance.
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LDAP OID Reference Guide June 12, 2024

LDAP OID Reference Guide

A comprehensive reference table of common LDAP object identifiers (OIDs) used in schema elements, controls, and extended operations. Each entry includes the OID, its purpose, and a link to the relevant RFC or specification.
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How to Clean Up pg_wal If the Disk Is Full December 4, 2023

How to Clean Up pg_wal If the Disk Is Full

A practical guide to resolving PostgreSQL pg_wal disk-full issues, covering both reactive recovery steps and proactive measures to prevent recurrence. Learn how to free space, move the WAL directory, and configure archiving correctly.
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Analyzing Large Java Heap Dumps Using Memory Analyzer CLI November 17, 2023

Analyzing Large Java Heap Dumps Using Memory Analyzer CLI

When MAT UI fails to handle very large heap dumps, the Memory Analyzer CLI provides a reliable alternative on Linux. This post walks through the setup and commands needed to parse multi-gigabyte dumps and generate shareable HTML reports.
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