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How to delete a file association in Windows 7

Windows 43 Comments

When you open a type of file (eg a .php file) for the first time Windows asks you to choose a program to open this file a.k.a “Open With” and from then on this type of file becomes associated with that program (unless you uncheck “Always use the selected program to open this kind of file”). While you can change this program association via Control Panel there is no option in the GUI for removing it. Windows XP had an option  in the “Folder Options” (Tools Menu > Folder Option) dialog box to remove file associations but in Windows 7 you have to tweak the registry to delete a file type association. In this article we’ll see just that.

In addition to this I’ve also written on how to reset a .lnk file type association, this is when you/someone/some application accidentally (or intentionally) associates the .lnk extension with notepad (or some other program) this causes all shortcuts on your desktop and start menu to open notepad with absurd characters.Continue Reading…

Setting up an authoritative DNS in Windows Server 2008

Windows 3 Comments

Nowadays all major domain registrars offer managed DNS service along with the domain name(s) you register with them. You can use them to create most of the commonly used DNS records like A, MX, CNAME and some even allow you to create AAAA(IPv6), SRV and TXT records. But if you want full control over the DNS of your domain(s) its better to setup your own server for DNS hosting.

Setting up a full fledged authoritative DNS server is not so difficult as it sounds. If your know how DNS works you can easily setup your own DNS hosting server to host an unlimited number of domains. In this article I’ve setup an authoritative DNS server using Windows Server 2008 R2.Continue Reading…

Blocking Google Analytics and Statcounter

Domains 4 Comments

Web analytics software available today are designed with one quote in mind “Information is power”, so they collect a ton of information about you, the Internet user. This includes your location (Country and City), web browser used, referred page, your IP address (Google Analytics doesn’t show this info to webmasters), time on site and a wealth of other information. While there are lots of web analytics software available the two most popular of them are Google Analytics and Statcounter. There are lots of browser plugins and software available to block these but if you use this method you don’t have to install “yet another software” without reading its privacy policy and be worried about it collecting information about you.

While this article tells you how to block Google Analytics and Statcounter you can also use this method to block other web analytics scripts. Also note using these methods will prevent client-side scripts (like Javascript) from tracking you but server-side scripts (like PHP) can still track you.Continue Reading…

Redirecting WordPress archives to a page

PHP 26 Comments

WordPress started as a blogging platform but soon evolved into a Content Management System (CMS) used to create full websites. But certain features meant for a blog doesn’t suit well for websites and one among them is displaying archives. An archive in a blog contains a list of “posts” based on date, category or author, sometimes even bloggers (like me) don’t like to displaying date archives. So I decided to redirect the date archives in my blog to the home page without using any plugin and in the process also learnt redirecting category archives to other wordpress pages also. There are many ways to do this like editing the .htaccess file or using a plugin and here I’ll be editing the wordpress PHP theme files.Continue Reading…

Demystifying EIGRP message types with Wireshark

Networking 9 Comments

EIGRP (Enhanced Interior Gateway Routing Protocol) is a Cisco proprietary routing protocol which even though seems to work like a Distance-Vector protocol is in fact several notches above other routing protocols in the distance-vector domain. While configuring it is a breeze what happens behind the scenes ? What goes in the wire when a “network” router subcommand is issued ? How do things converge quickly when a topology change occurs ? These questions made me create a simple topology in GNS3 and capture packets using wireshark. So join me in unraveling the mystery inside an EIGRP packet.Continue Reading…

Answers for CCNP TSHOOT Demo Exam

Networking 19 Comments

Cisco has created a very good demo exam which resembles the real simulation used in the CCNP TSHOOT exam. While the trouble tickets asked in the demo are nowhere near the real TSHOOT exam it gives an idea of what kind of tickets to expect in the exam. This article is a walkthrough on how I answered the 4 tickets in the CCNP TSHOOT demo. The 4 tickets in the demo jumble up each time the demo is opened so the order of tickets I mention in this article will be different compared to the one you’ll encounter in the demo. All tickets contain the same issue of the client not being able to ping the webserver so you can differentiate each ticket based on the output of tracert.

You may want to attempt the demo exam at the following link

http://www.cisco.com/web/learning/le3/le2/le37/le10/tshoot_demo.html

before reading further.Continue Reading…

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