How to add DNS servers -or resolvers- to a Windows Server network adapter, or interface using WMI and the netsh command annd PowerShell. This one is quite old but may come in handy sometimes. In this example we use Google's Public DNS server addresses and localhost to add as DNS Servers on our server's interfaces.
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Published on Friday, 12 December 2014
After installing a new Windows Server 2012 R2 machine with the DHCP role enabled, adding a DHCP server used a 169.254.x.x IP address as server name. Instead of the servers hostname
Published on Friday, 12 December 2014
ECN is an optional feature that may be used between two ECN-enabled endpoints when the underlying network infrastructure also supports it. Unfortunately, having one ECN Capability enabled endpoint may slow down outbound network connections to outdated network equipment.
Published on Wednesday, 3 December 2014
The other day, when I attempted to add a newly installed Active Directory to become the slave domain controller of a master, the error message "A domain rename operation is already in progress" was displayed. Promoting the Windows Server 2012 R2 server to a Domain Controller failed.
Published on Wednesday, 26 November 2014
Joomla websites using the Googlemaps plugin for Joomla are actively abused as open proxy for launching Denial-of-Service (DoS) attacks. Even though the Googlemaps plugin vulnerability plugin_googlemap2_proxy.php was released over one and a half (1,5) years ago, I still see these DoS-attacks happening on a regular basis...
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Published on Sunday, 16 November 2014
A quicky for my archives, learn how to convert decimal to hex and hexadecimal to decimal, in Bash...
Published on Thursday, 6 November 2014
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!
Published on Wednesday, 29 October 2014
Learn how to optimize PHP performance by checking and setting PHP realpath_cache_size
Published on Thursday, 23 October 2014
If you've moved some old PHP pages, or URLs, to new pages and URLs, you can use the following PHP code snippet to easily redirect all visitors and incoming requests to the new location. This PHP code snippet uses a 301 Moved Permanently redirect, perfect for SEO and returns a 404 Not Found if a new location hasn't been set up yet.
Published on Sunday, 12 October 2014
How to use a tag with a comma in it in WordPress? Normally, in WordPress all tags are comma seperated: php, wordpress, website, functions.php. But what if you need to use a tag with commas in it? For instance "cafe, bar, restaurants". Easy, create a filter in your WordPress functions.php, and here is how...
Published on Sunday, 12 October 2014
Learn how to mysql replace content in your MySQL database in bulk with MySQL REPLACE. Sometimes it's useful to know how to bulk edit content in your WordPress MySQL database using MySQL replace() function.
Published on Saturday, 13 September 2014
In this article you'll learn how to start all stopped application pools that have the ApplicationPool.AutoStart property set to $True using AppCmd.exe or PowerShell. This is something you often or occasionally have to perform on various servers, for example when an application pool hangs.
Published on Thursday, 11 September 2014
Here you'll find a PHP script to check if your website is up and online available. It uses PHP and cURL. This script comes in handy because website uptime and availability is important, and you want your website to be always online available. If your website is down, it'll send you an email to notify you about downtime.
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Published on Wednesday, 10 September 2014
PHP 7 with OPcache in IIS Express for Microsoft WebMatrix 3, learn how to create your own PHP development environment easily with Microsoft WebMatrix and IIS Express and your own custom PHP version.
Published on Tuesday, 19 August 2014
Since a week or so, I notice a huge increase in SQL injection attacks on various websites. Anyone else seeing the same SQL injection attacks lately? This increased SQL injection activity - on various web sites and databases - has the following characteristics
Published on Thursday, 7 August 2014