Web application. A web application is application software that runs on a web server, unlike computer-based software programs that are run locally on the operating system of the device. Web applications are accessed by the user through a web browser with an active network connection.
Fire-and-forget JavaScript and CSS minification and PNG image optimization on the Linux-, Mac OS X and Windows command-line interface. Using OptiPNG and YUI Compressor Optimize PNG images and minify JavaScript and CSS files, the easy and fast way? With YUI Compressor and OptiPNG on the Windows-, Linux- and macOS command line of course! Compacting HTML, …
prettyPhoto DOM based XSS on Saotn.org… This evening, after tweeting about preventing cross site scripting vulnerabilities, I received a reply from Olivier Beg. His reply to my tweet contained an image, as you can see above. He alerted me that Saotn.org was vulnerable to a DOM based XSS vulnerability, hidden in prettyPhoto used by my …
Learn how to optimize WordPress’ wp_options table for faster database results. This probably isn’t a big issue, but 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. The autoload feature loads and caches all autoloaded options, …
WordPress wp_options table autoload micro-optimization Read More »
Install WordPress plugins without admin access, and automate your WordPress customization and plugin installation. WordPress has a little drop-in plugin option available in the form of /wp-content/install.php. This install.php file is not present at default, but when created it can be used to install plugins without wp-admin access. This might come in handy for unattended …
Install WordPress plugins without WP-admin access Read More »
The WordPress plugin StatPress (no longer available in the Plugin Directory) is still widely used and still is very slow. Here are some MySQL statements you can use to optimize its performance, as a WordPress optimization tip…
Contact Form 7 is a WordPress plugin that provides a simple but flexible contact form. On IIS, Contact Form 7 captcha has one HUGE disadvantage: temporary captcha files placed in wp-content/uploads/wpcf7_captcha, are not automatically removed. The files are made read only. Here is how to remove Contact Form 7 temporary captcha files on IIS…
Configure Umbraco for SQLServer sessionState storage, for your sessions. This post explains how to prepare your Umbraco website for a high performance web garden or web farm, and load balancing environments: Store your ASP.NET / Umbraco sessions out-of-process (OutProc). As opposed to the default in-process (inProc) sessions, where sessions are saved in the worker process.
How to delete WordPress spam comments and meta data with phpMyAdmin. A lot of WordPress spam comments and meta data will keep your WordPress database huge, and slows down your site. It’s best to delete spam comments regularly, but if you’re facing hundreds of thousands spam comments, here is how to delete them all in …
How to fix PHP Call-time pass-by-reference has been removed in errors. The following PHP fix goes for nearly all PHP Call-time pass-by-reference errors: The WordPress plugin In Over Your Archives is a plugin to display your archive page in a nice way, just like on inoveryourhead.net. The plugin hasn’t been updated in quite some time …
WordPress plugin “In Over Your Archives” Call-time pass-by-reference fix for PHP 5.4 Read More »
If you run a WordPress blog where you display (parts of) source code, syntax highlighting is a must! It prettifies the code which makes it easier to read and it distinguishes code from text. However, most syntax highlighting is made available through plugins, and we all know too many plugins bring a lot of overhead …
How to load google-code-prettify syntax highlighting without plugins Read More »
Optimizing and loss-less compressing images is one of those items that always pops up when analyzing your website with Google PageSpeed Insights. Images have to be loss-less compressed to save many bytes of data and thus bandwidth. This speeds up the download time of your website. But, how do we optimize images for the web? …
The less spammers hit your WordPress blog, the better your blog performs, is one of my opinions. A second is, the less unnecessary plugins you use on your WordPress blog, the better. So, a little while ago I decided to remove plugins like Stop Spammer Registration Plugin and do its work myself. Here is why …
How to reset your WordPress password? If you’ve lost or forgotten your WordPress admin password, you can easily reset the password. Either use the following MySQL statement to reset your WordPress admin password, or change it through functions.php.
The following was posted to the Web Security Mailinglist: Unauthorized Access: Bypassing PHP strcmp(). A way to bypass PHP’s strcmp() binary safe string comparison function.
Acunetix’ Bogdan Calin wrote an article explaining why .htaccess files should not be used to secure sensitive data: htaccess files should not be used for security restrictions.