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AppCmd introduction and examples
AppCmd is a command-line utility to manage IIS 7+ web servers. It provides the ability to administer Windows Server IIS without a graphical user interface to configure settings for the Web server, sites, applications, and virtual directories. Here is my introduction to AppCmd.exe. AppCmd is, in combination with WinRM, the Windows Server IIS systems administrator’s swiss-army knife for his daily routine.
Continue readingMinify WP-Super-Cache HTML cache files: WPSCMin a WP-Super-Cache plugin
The WordPress WP-Super-Cache cache plugin doesn’t minify HTML cache files, which I find a disadvantage. Knowing minify libraries, I went looking for an existing solution (why reinvent the wheel?), and found one: WPSCMin. Read on …
Continue readingPHP 5.6 default_charset change may break HTML output
An important note for everyone who’s upgrading from PHP 5.4 and PHP 5.5, to PHP 5.6: the PHP default_charset in php.ini changed from “empty” to UTF-8, making UTF-8 the default charset in PHP. This may break HTML output if you try to set a different charset in your HTML head. It may also break functions like htmlentities() and htmlspecialchars. For example:
Continue readingHow to redirect HTTP to HTTPS on IIS
An HTTP to HTTPS redirect on IIS is often better left to the web server, with a simple httpRedirect redirection, than to a resource expensive URL Rewrite. Where possible, use the IIS httpRedirect element for IIS HTTP to HTTPS redirection, and here is how:
Continue readingConditionally start Application Pools on remote IIS web servers
Start stopped application pools with AppCmd in a loop. In my routine, I occasionally have to start multiple website application pools when they are in a stopped state. On more than one web server. Being a lazy system administrator, I find it too much work to log on every server. Therefore I start those application pools in a loop. A condition for me to start […]
Continue readingPHP script to check website availability with PHP/cURL
Here you find a PHP script to check if a website is online availability with PHP/cURL. The following PHP function checks if your website is online available or not. Website uptime and availability is important and you want your website to be always online available. When your website is down, you want to be notified about the downtime.
Continue readingSend authenticated SMTP email over TLS from WordPress
How to configure TLS for SMTP email in WordPress. I was suprised WordPress is not able to send email using an SMTP server out-of-the-box. Not to mention using authenticated SMTP or TLS transport for security. A quick Google search showed me multiple plugins to handle this, but I wanted to create something myself. Here is how to override the wp-mail() function and send email using […]
Continue reading8 Tips to improve Joomla! performance
Joomla! performance tuning: learn how to improve & speed up Joomla! with these 8 simple and important tips. Add caching, gzip compression, set your sessions & optimize MySQL database functions… Provide your visitors with a blazing fast Joomla! website!
Continue readingHide .php extension with IIS URL Rewrite Module (how-to)
How to hide file extensions, such as .php, with URL Rewrite on Windows Server IIS? Sometimes it’s important to hide the file extension of scripts you use. Security by obscurity might be that reason, if you don’t want others to know what script language you are using for your website. This example will hide the .php extension using the IIS URL Rewrite module, in a […]
Continue readingMinify JavaScript, CSS and compress images
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, CSS, and JavaScript can speeds up your website because of smaller and faster downloads, parsing, and execution time.
Continue readingOptimize images for the web in bulk
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? Or, what if I have hundreds of images that needs […]
Continue readingAdd websites and application pools to IIS 7.5, 8.0 with PowerShell, in a for loop
How to use PowerShell to create websites and application pools in IIS… A client of the company I work for wanted to quickly add 60 sub-domains to his website. But, the sub-domains had to be created as self contained IIS websites, and running in their own application pools. Luckily, the client wanted 60 consecutive sub-domain names, e.g. “sub01.example.com”, “sub02.example.com”, …, … up till “sub60.example.com”. This […]
Continue readingVarious articles (tech and non-tech)
This post provides links to some articles I found last week. The posts might be interesting in various fields of expertise, for either system administrators or developers (DevOps). Topics include: web security, WordPress performance, jQuery, ASP.NET MVC caching, partial trust, view state MAC, and fixing IIS website hangs.
Continue readingHow to send authenticated SMTP + TLS in PHP, ASP and ASP.NET
Authenticated SMTP and TLS script examples for ASP, PHP, ASP.NET (C#/VB.Net): if you want to send secure email from your website, over an TLS-encrypted connection, this post is for you! In this post I’ll provide some code examples that you can use to send secure, and authenticated, SMTP email from your website.
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