DNS Servers?

Yeah just while ago, I asked my friend about them. He was like, hmm what’s that? This is a common question, and in fact, DNS is a necessary protocol for the internet to even function [easily], for normal human beings. What do i mean by this? And why does DNS matter? Let’s let Google explain.

” The DNS protocol is an important part of the web’s infrastructure, serving as the Internet’s phone book: every time you visit a website, your computer performs a DNS lookup. Complex pages often require mutiple dns lookups before they start loading, so your computer may be performing hundreds of lookups a day”

Wow they explain it so well. This also explains why even though you may have a fast internet connection, it may take Yahoo or MSN forever to load up. Now, most people by default have the OpenDNS servers. You can change them to the Google DNS servers or any other. They are few of them, like ten main ones all over the world that their only purpose in life is to serve as an address book. A noble purpose, one that every human on earth should appreciate.

So let’s get down to the nitty gritty, I could type here all day about dns servers and you would get bored to tears. I wouldn’t, but you would. So why should you know about this? Let’s say you take your laptop to school, and you connect to the wifi, and you try to go on youtube, but ohh no! how did they block it? They told the DNS server they use, (with special settings) to pretend as if you-tube doesn’t exist on the web. So even if you are on your laptop, you would still not be able to access any sites they block through DNS. So, how to change it to an unblocked DNS server? Such as Google DNS? well, Let me list them off one by one.

Ubuntu Linux: Basically in Linux you look for the network connections settings.
1. Look for “Network Connections” in System/Preferences/Network Connections.
2. Click wired tab and click on the autoeth0 you use maybe, now click edit as shown in picture.

2.  Good now you will do as this picture says. 

Which involves CLicking the IPv4 tab, now on Method click “Automatic (DHCP) Adresses Only” And then you will be able to edit the DNS servers. Type them in as shown. or Copy and paste. 8.8.8.8, 8.8.4.4

Windows XP: In Windows XP, click start, then control panel, then network connections, (network connections again if you need to) Now on the one that says “local area connection” you right click on it. And you will end up with this window.
Click on the TCP/IP Internet Protocol and click the Properties button. (note, on windows 7 and Vista this is the IPv4 Internet properties, don’t mess with the IPv6 one just yet) PS. also check the “Show icon in notification area when connected if it is not already checked, it is useful to have on the taskbar.

Then in that box do this.

Click, “use the following DNS servers and type in as shown.

When finished click ok, ok again, and close the window, you should now be using the Google DNS servers! (note, this is to be done only on your computers, laptop or desktop, do not try this at school computers or work. You may mess up some setting they have in there to connect to shares and internet stuff. Of course, if that’s exactly what you intend to do, then by all means, go ahead. )

Windows 7: On Windows 7, to get to the network connections, just click start and type in the search bar. “view network connections” From here on follow XP instructions and right click on Local Area Network Connections to begin. It’s also funny how Windows hasn’t changed this way of messing with Network connections, i guess, it’s the easiest way for them to do it, but i could think of some easier ways to get this done, however, this may have to do with the fact that we don’t want people to be messing with this so much.

Windows Vista: Click start, click Control Panel, (don’t try the same thing as Win 7 it work work, Darn you Vista!) Type in the Search bar of the Control panel, “view network connections” Click on the result on the bottom that says exactly that. From here on, follow the Win XP instructions to change the DNS Server.

PS. one thing I also forgot to mention is that if you are doing this on a laptop. You would have to edit the wireless Network connections instead of the “local” Network connections. Same method of doing this, but you just right click on the Wireless connections instead, and change it’s properties.

Enjoy surfing the web, you may not notice a difference in browsing speed, but you will be able to go on any website on that computer with less restrictions. This is also an easy way for Google to keep track of you. Isn’t that thoughtful of them? And to learn more about the DNS visit http://code.google.com/speed/public-dns/ and inform yourself. Changing your computers DNS server not only gives you more control over your machine, but also over your internet connection. Later on we will visit more of the Network connections setting, so don’t forget how to get there! Until next time. Feel free to ask questions, remember, there’s no such thing as a dumb question, only dumb people who are too scared to ask questions.

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About Zerin

But can you show me the source code?

Posted on December 6, 2010, in Computers and Internet, Linux Stuff, Windows. Bookmark the permalink. Leave a comment.

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