Diagnosing 502 Errors
Table of Contents About 502 Errors Common Causes Step 1. Check PHP via Monit Step 2. Check RAM and Swap Usage via Monit Step 3. Check your DNS and Cloudflare Step 4. Check your Nginx Error Log Step 5. Enable…
Category Performance
The WP Reset Plugin and Database Bloat
Third-Party Software Notice Our support team cannot provide support for third-party software and services. However, if you spot an issue with this article please let us know and we will endeavor to bring it up-to-date ASAP. WP Reset is an…
Configure Redis
Table of Contents Introduction Before You Begin: Single Redis vs Split Redis Adjusting Redis maxmemory Redis maxmemory eviction policy Change Redis persistence Troubleshooting the REDIS MEM_HIGH Warning notification Introduction Redis is a high-performance in-memory database. For WordPress purposes, it is…
How to Prevent Image Hotlinking
Introduction Hotlinking is where someone loads an image from another website on their own website, directly off their server and effectively stealing their bandwidth (and probably also breaking a copyright law by not having the appropriate licensing/permission in many cases).…
How to Use the htop Command to Monitor System Processes and Resource Usage
Table of Contents Introduction What Can “top” Show You? Getting Started Part 1. The “htop” Summary Area: What it All Means Part 2. Active Processes Part 3. “htop” Commands Part 4. Using the Data Inside “htop” to Troubleshoot Performance Issues…
How to Use the top Command to Monitor System Processes and Resource Usage
Table of Contents Introduction What Can “top” Show You? Getting Started Part 1. The “top” Summary Area: What it All Means Part 2. Active Processes Part 3. Using the Data Inside “top” to Troubleshoot Performance Issues Further Reading Introduction One…