Apache Access Control done right, ‘Allow/Deny from all’ versus ‘Require All Granted/Denied’
Since Apache 2.4.6, a new module is used to configure and set up access control for websites: mod_authz_core. This means you have to use a different syntax for allowing or blocking hosts and IP addresses to your website. But unfortunately, old documentation is never updated and people even still write blog posts using that old syntax, leaving you with an unprotected website. Not what you had in mind, now is it?… Continue reading
A plea for plugin developers to stop supporting legacy PHP versions” (hear! hear!), Jeff Chandler writes on WP Tavern. Iain Poulson has published a thoughtful request on the Delicious Brains blog asking WordPress plugin developers to stop supporting legacy PHP versions. He covers some of the benefits of developing with newer versions of PHP, what Delicious Brains is doing with its plugins, and using the Requires Minimum PHP Version header in readme.txt.
WordPress developers: please stay away from WP_MEMORY_LIMIT and PHP Continue reading
memory_limit settings! We see this done wrong over and over in WordPress plugins and themes. One of such themes is the premium theme Jupiter by Artbees, or WPML as plugin. WordPress users: don’t touch these memory limitation settings either! They’re imposed for a reason. Here’s some explanation:
Search Engine Land writes that Google’s partnership with WordPress aims to jump-start the platform’s support of the latest web technologies — particularly those involving performance & mobile experience. And they’re hiring WordPress experts.
The WordPress XML-RPC API has been under attack for many years now. Back in August 2014, WordPress released version 3.9.2, fixing a possible denial of service issue in PHP’s XML processing. There are brute-force amplification attacks, reported by Sucuri, and so on. So, how do you protect WordPress from xmlrpc.php attacks, but still being able to use (some of) its functionality like Jetpack? This post gives you some insight. Continue reading
Recently the WordPress Jetpack email sharing service is often abused by spammers. They use the Send to Email Address for sending spam. All these kind of “Tell a Friend” scripts are abused a lot. Here is how to disable email share service in WordPress Jetpack. Continue reading
The default WordPress theme Twenty Seventeen’s content width can be easily changed to full width. All you need is this bit of CSS. Continue reading
Verify WordPress Core files md5 checksums against WordPress’ checksums API, using this standalone PHP file. I chose to use a standalone PHP script to check the md5sum of WordPress Core files against the API so you’re not dependent on a possibly hacked WordPress installation. This kind of guarantees the result can be trusted, as opposed to using a WordPress plugin. I think this is a better integrity check of WordPress Core files. Continue reading
Helen Hou-Sandi writes on Make WordPress Core that there is a quiet RC2 now available – it is a fair number of commits (50+), so please take a look through those and test as you can.
In various hosting environments, WordPress core-, plugin- and theme updates sometimes fail because of enabled opcode caches. Popular PHP opcode caches are OPcache, WinCache and APC. This little WordPress Must Use Plugin tries to flush opcode caches. Making your live a bit easier when updating WordPress Core, Plugins and Themes. Continue reading
WinCache, or Windows Cache Extension for PHP, is a PHP accelerator that is used to significantly increase the speed of PHP applications running on Windows Server IIS. Besides increasing the speed of PHP applications, WinCache decreases CPU usage making it a win win situation extension. I’ve described how to run PHP with WinCache on IIS in an earlier post. Continue reading
ab is a small benchmark utility that comes with Apache. It’s a really simple HTTP load generating tool, ideal for a simple WordPress load & speed test. How fast does your WordPress site respond? How many HTTP requests per second can your server handle? These are questions on which ab can shed some light.
How to measure WordPress’ loading time and executed database queries? During an HTTP request, WordPress executes a lot of queries on your MySQL database. Not just the database queries take time, also loading and executing PHP takes time. How do you measure this? Continue reading
Who said WordPress is slow on Windows Server IIS? Gzip compress and serve WP-Super-Cache or Cache Enabler static HTML files, to supercharge your WordPress blog. Here is how to serve gzip compressed HTML files through Windows Server IIS: create smaller, compressed, static HTML files, that are downloaded faster. This works with WP-Super-Cache and Cache Enabler on IIS!
Isn’t it true that, when you (start to) develop WordPress websites for clients, and you host them yourself, you find yourself in a situation where you need to know a lot about “stuff” other than WordPress development? In this optimizing WordPress hosting post, I provide 9+ practical tips for you, to improve WordPress hosting performance. Especially useful if you plan to develop and host WordPress websites yourself.