Deploying and maintaining Web Applications requires a delicate balance of performance, security, and scalability. This category dives into the middle layer of the stack, focusing on how applications interact with the web server, the database, and the end-user. From configuring specialized headers and SSL / TLS certificates to troubleshooting application-specific bottlenecks, these guides help you move beyond default installations.
Whether you are managing self-hosted tools, SaaS integrations, or custom-built platforms, you will find technical advice on environment hardening and performance optimization. The goal is to provide the architectural insights necessary to ensure your web services remain fast, secure, and resilient under load.
Web applications
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How to set up a global Geolocation DNS load balancing Varnish Cache Content Delivery Network with Bind9, geo-ip database, Varnish Cache and DigtalOcean. DIY High-Availability for your website!
Web applications
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Learn how to optimize PHP performance by checking and setting PHP realpath_cache_size. The realpath_cache_size size represents the total number of bytes in the path strings stored, plus the size of the data associated with the cache entry
Web applications
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Use a PHP redirect script to redirect old PHP URLs to new ones. This examples uses a 301 Moved Permanently redirect, perfect for SEO.
WordPress
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How to display commas in WordPress tags? And why have commas in WP taxonomies?
WordPress
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Bulk edit content in your WordPress MySQL database with the MySQL REPLACE() and REGEXP_REPLACE() string functions.
Web applications
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Exploit PHP's mail() function for remote code execution. Apparently, if you are able to control the 5th parameter of the mail() function ($options), you have the opportunity to execute arbitrary commands.
Web applications
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Outdated but fun: PHP 7 with OPcache in IIS Express for Microsoft WebMatrix 3: create your DevOps with Microsoft WebMatrix and IIS Express
WordPress
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Learn how to override wp-mail() and send secure email using authenticated SMTP and StartTLS from WordPress.
WordPress
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How to identify, block, mitigate and leverage xmlrpc.php scans, brute-force, and user enumeration attacks on WordPress sites... Secure WordPress xmlprc.php interface and reduce service disruption.
Web applications
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Learn how to speed-up Joomla performance on Windows Server IIS using these 8 simple, but important, tips. Add caching, gzip compression, set your sessions & optimize MySQL database functions.
Web applications
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Ghost Publishing platform uses Nodemailer to send email with Node.js. It can send email using SMTP, sendmail or Amazon SES and is unicode friendly.
WordPress
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I wanted to migrate from WordPress to Ghost, and at first failed. Here's the write-up: exporting WordPress to JSON and fixing Ghost's import errors.
Web applications
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Flush the MySQL or MariaDB query cache to defragment its free memory, manually on the MySQL shell or automatically through a Linux cronjob.
Web applications
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Minify JavaScript and CSS the easy and fast way, with YUI Compressor and UglifyJS on the Linux, macOS and Windows command line.
WordPress
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The autoload feature loads and caches all autoloaded options, if available, or all options. The default option is to autoload, and over time when the wp_options table grows, this degrades performance. Today I noticed a slow MySQL query coming from a WordPress database (WordPress wp_options table). This made me investigate and to optimize the WordPress wp_options table “autoload” feature.
WordPress
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Use the wp-content/install.php drop-in to install and activate WordPress plugins without wp-admin access, for example for unattended installations.
Web applications
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PHP script to make your MySQL database smaller, leaner and faster by optimizing all tables with mysqli multi_query().
WordPress
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Delete WordPress spam comments and meta data in your database, easily with phpMyAdmin or mysql cli. Keep your WordPress database lean & mean!
Umbraco
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Configure Umbraco for SQLServer sessionState storage and prepare Umbraco for high performance web garden or web farm, and load balancing environments. This post explains it all.
WordPress
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Load syntax highlighting JavaScript and CSS in WordPress only on posts that need it, from functions.php instead of a plugin.