Windows XP Hacks

Tweak DNS Settings for Faster Internet Access

A handful of DNS hacks for speeding up access to web sites.

You use the Web by typing in hostnames such as http://www.oreilly.com, but web servers and Internet routers can’t understand plain English words, so they need those letters translated into numeric IP addresses. Whenever you type in a hostname, such as http://www.oreilly.com, it needs to be resolved to its IP address, such as 208.201.239.37. DNS servers provide that name resolution automatically and behind the scenes as you surf the Web.

There are several ways you can hack your DNS settings so that you can get faster web access.

Speed Up Web Access with a HOSTS File

It takes time to send your request to a DNS server, have the server look up the proper IP address to resolve the name, and then send the IP address back to your PC. You can eliminate that delay by creating or editing a local HOSTS file on your own PC that contains hostnames and their corresponding IP addresses. When you create one, XP will first look into the HOSTS file to see if there’s an entry for the hostname, and, if it finds it, it will resolve the address itself. That way, you won’t have to go out to a DNS server and wait for the response before visiting a web site. The HOSTS file is a plain text file you can create or edit with a text editor like Notepad.

You’ll find an existing HOSTS file in C:\System32\Drivers\Etc\HOSTS. The file has no extension; it is named only HOSTS. Open it in Notepad and enter ...