Troubleshooting Knowledge Base

Technical walkthroughs for Apache, PHP 8.1, and CentOS 7/8 optimization.

Networking
DNSmasq for 0ms Latency

Configure a local DNS cache to eliminate external lookups and speed up PHP-to-Web requests.

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PHP 8.1 Performance
Realpath Cache Tuning

Optimizing file path resolution to reduce disk I/O on high-traffic PHP applications.

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Security
Hardening Postfix MTA

How to secure your mail transfer agent to prevent spam relay attacks while allowing PHP mail.

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Web Server
Migrating to MPM_Event

A deep dive into moving from Prefork to Event for better concurrency on 32GB systems.

Coming Soon