What Does The DNS DO? & How does changing to a specific 1 affect info transfer?

Question

So I've had horrible internet problem over the past few months until I saw open dns.....I was wondering what the catch was on it. I searched that the DNS is some weird thing that transfers info across the router. When you use DNS with open dns, you change to a specific dns. What does this do the computer or does anything affect it?

Answer 1

DSN, or Domain Naming System or Domain Naming Service, simply converts human readable names and URLs into a machine usable numeric IP address. For example when you type www.yahoo.com into your browser it converts that into 209.131.36.158, one of Yahoo's web servers.



Your ISP does provide DNS services but there are many other providers that you can use as well. One of the best known in IT circles is OpenDNS. Many ISPs' DNS servers are over-subscribed and this can result in performance issues on occasion. AT&T has some of the worst DNS servers on the Internet, IMHO. When DNS is slow or non-responsive it can severely affect performance.



OpenDNS attempts to resolve these problems by placing a number of extremely high-performance servers around the globe. These servers are configured with very large memory caches and they automatically fail over to other OpenDNS servers if one goes off-line. OpenDNS also offers optional filtering and blocking services that can block access to certain types of sites such as proxies, porn, or phishing and malware sites.



While some DNS providers do restrict access to their own customers, both AT&T and OpenDNS allow access to anyone world-wide without restriction. You can try OpenDNS at the following addresses:



208.67.222.222

208.67.220.220



Note that in a corporate or campus environment, DNS is usually provisioned by the network administrator and you must always use their DNS. If you don't, you'll lose access to internal resources and may not even be able to log on. In a small office or home environment there's no reason why you cannot manually configure your machines to use OpenDNS. You may be pleasantly surprised with it's performance. Check out their service at http://www.opendns.com

Answer 2

DNS (Domain Naming Service) does translate names to ip numbers.



There is a hierarchical system that does this, ie; top level domain, which feeds down to lesser domains, etc... but the important thing to remember is use the dns servers that your internet provider says to use.



Because of security issues if your using someone else's dns numbers they will eventually "kick you out".

Answer 3

That's about as wrong as it gets.

DNS is simple a server your Internet provider give you to translate a domain "www.yahoo.com" into an IP Address do you can find it on the internet. If you have a broadband router, it picks up the DNS servers from your provider, and passes them along to you when you connect to your router. I doubt your internet problems have anything to do with this, unless you have messed with your DNS settings.

They should be on "obtain automatically" or "obtain by DHCP" unless your provider has given you other specific instructions.

Answer 4

What Does Dns Do

Answer 5

Yes it does. Actually it affects many things including hair and skin. Hair falls much and skin irritations happen at the change of the season.