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.

Regex Quick Reference January 24, 2022

Regex Quick Reference

A practical cheat sheet covering common regex patterns, Perl-compatible lookarounds, and character classes for everyday text processing in bash and grep.
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Reject with Comment January 24, 2022

Reject with Comment

A quick iptables one-liner to reject TCP traffic from a specific source IP with a TCP reset, tagged with a human-readable comment for future reference.
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Saving Your Bacon with Linux RCS January 24, 2022

Saving Your Bacon with Linux RCS

A quick reference for the core RCS (Revision Control System) commands used to initialize, check in, check out, and log file revisions on a Linux system.
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Show Global Maximum SQL Connections in Use January 24, 2022

Show Global Maximum SQL Connections in Use

A quick MySQL command to check the peak number of simultaneous connections your server has handled, useful for capacity planning and diagnosing connection bottlenecks.
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Stop Slow Loris Attacks January 24, 2022

Stop Slow Loris Attacks

Slow Loris attacks tie up web server sockets with trickling requests until legitimate traffic is starved. This post walks through configuring Apache mod_qos to detect and block those connections automatically.
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Sync MySQL Time January 24, 2022

Sync MySQL Time

A quick procedure to verify and correct a time mismatch between the host system clock and MySQL’s internal NOW() function, using a simple service restart.
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