Welcome to Sysadmins of the North

A technical blog where topics include: computer, servers, web, sysadmin, databases, virtualization, optimization and security.

Create your own PHP based Origin Pull CDN

The advantage of having your website content hosted on a Content Delivery Network (CDN) is having your content distributed and stored across the Globe. Utilizing the network of the Content Delivery Network provider. Hosting your WordPress website on a Content Delivery Network is an important WordPress optimization tip. Here is how to create your own Origin Pull CDN with just a few lines of PHP…

Cache MySQL query results with PHP WinCache

You can cache and store the MySQL query result in your web server RAM memory, utilizing PHP WinCache. Or another PHP opcode cache like Opcache for that matter. This’ll  increase database and PHP performance.

Convert .htaccess to web.config

This post describes some of the IIS URL Rewrite Module web.config equivalents of commonly used Apache .htaccess settings. This is useful when you convert your Apache .htaccess to IIS web.config. The second part of this post outlines how to use Internet Information Services Manager to import and convert .htaccess rules to web.config.

PHP with WinCache on IIS

Learn how to install PHP on Windows Server IIS. With Windows Cache Extension for PHP (WinCache). WinCache enabled PHP gives you great performance for WordPress, Drupal and Joomla websites, and decreases CPU usage.

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Remove ETags HTTP response header in IIS

Yahoo! YSlow recommends removing Entity tags – also known as “ETag”. Unfortunately removing the ETag response header is not an easy task on Windows Server IIS web servers. Here I show you how to properly remove ETag HTTP response headers with an IIS Rewrite Module Outbound rewrite rule… Remove ETag response headers in IIS

Multiple IIS 6.0/7.5 Vulnerabilities

Multiple vulnerabilities found in IIS 6.0 and 7.5 web servers. On the Full-Disclosure mailinglist Kingcope posted several IIS 6.0 and 7.5 bugs. Because I am a Windows Server and IIS admin, I took some time to test the various vulnerabilities …

Microsoft Deployment Workbench: silent installation of various applications

Install and depoly applications using Deployment Toolkit. Here’s a small list of applications and their silent installation command line parameters, to use with Microsoft Windows Deployment Services (WDS) or Deployment Toolkit.

Silently deploy applications through Windows Deployment Services (WDS) / Microsoft Deployment Workbench, or the command line.

Clean up WordPress post revisions

Every time you write or edit a WordPress post, WordPress saves the change as a post revision. As you might expect, this fills up your database with a huge amount of unneeded post revisions and information. This uses space which should be free space, the MySQL database becomes bloated. You can clean up these WordPress post revisions quite easily