WHAT IS OPEN DNS ??? WHAT DOES IT MEAN ?

Question

I WANT TO KNOW ABOUT OPEN DNS ??? WHAT IS IT ??? CAN I USE IT FOR ON MY INTERNAL NETWORK IP'S???? I AM USING DHCP SERVER..SO CAN I USE OPEN DNS AS PRIMARY DNS & SECONDARY DNS ? WILL IT AFFECT MY NETWORK ? WILL IT BE USEFUL FOR ME IN MY INTERNAL NETWORK ??

Answer 1

DNS stands for Domain Name Service. It is the thing which equates a domain NAME with an IP address. It is nothing more than a huge database, a server, which your machine uses to lookup the IP address of a specific NAME of a domain. YOUR local network is NOT shared out to anywhere else because your LAN is not listed in this database. Free DNS servers set up this name-IP address entry for you so you can share YOUR lan with the outside world. The problem is you need a static IP address to actually DO this. OR you can use an alternative, a dynamic address and a program on your computer which updates the DNS entry if your ISP changes your IP address. Then, once you make the entry in the free DNS server database, people can use your LAN NAME to find your IP address and deal with your network. This is a way for you to set up a web server on your LAN that the outside world can get to. Check with your ISP. MOST (I think ALL cable carriers) restrict use of a server open to the public as it unfairly can hog bandwidth and degrade service for other users on the same wire. For example: I run a web server on my home LAN. I named my server WD31600. I connect to my server by typing in the URL of http://wd31600/ Note, NO dot com or dot anything and the trailing slash. IF I had a free DNS entry for this name and my IP address from my ISP, then YOU could connect to MY server by using this same URL. Without a public DNS entry linking my name of WD31600 with the IP address assigned by my ISP, only users on my local LAN (my machines connected by my wire to my server) can connect as my local server acts as its own DNS service. Remember, setting up a server as I have and sharing it with the public MAY violate your agreement with your ISP.

Answer 2

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Answer 3

DNS is Domain Name Server. Open DNS is a slightly different DNS system from the traditional one. I have tried both. There are entries missing in the Open DNS system that will cause occational problems. Read the link below for w brief tutorial for Open DNS:

Answer 4

Here is what I know about DNS ('open' DNS is a new one on me):



DNS (Domain Name Service (or Server or System)) is a computer that has the DNS service installed on it. Sometimes there are public DNS servers (these respond to Internet requests like when you type http://www.microsoft.com into your browser) and sometimes there are private DNS servers (these respond to internal requests for resources such as your office's private server or your networked printer).



DNS servers work like this:



Every website and place that you go on the Internet has an IP address. When you type in a http://www.microsoft.com (or any other site) into your browser, the browser sends a request to a public DNS server (if searching on the public Internet) which takes 'www.microsoft.com' that you typed in your browser and resolves the plain English name of 'www.microsoft.com' into an IP address so that the DNS server knows where to send your browser to get a web page to display. The DNS server is said to resolve the friendly name to the IP address for Microsoft.



To answer your questions now,



1. I've not heard specifically about 'open' DNS, but DNS is very much utilized and required for the entire Internet to work properly. You could get to absolutly NO website (or any other http resource) without DNS servers unless you knew the exact IP address of every site that you wanted to visit.

2. Already answered what DNS is, I hope.

3. You can certainly use a private DNS server internally. In fact in most all modern networks past Windows NT4, you are required to have one to operate correctly. Typically, your router provides this function on a small home network or other protocols are used like WINS (similar to DNS but ancient.)

4. DHCP servers assign IP addresses and are used in conjunction with DNS servers. DHCP updates DNS with IP address information to keep names and IP addresses updated constantly.

5. You can use either a single DNS server or a primary and a backup (secondary). If a small network, you can get away with one with no problem (in fact, you can use the oldest computer you have to handle the DNS portion as it's not very taxing on the hardware at all.)

6. Depending on your network's construction and size, DNS servers are usually the best way to go with more than a few computers or when you have an Active Directory domain running with Windows Servers.

Answer 5

What Is Open Dns

Answer 6

DNS stands for Domain Name System, a service that enables one to use the Internet in a straightforward manner.

Answer 7

That is the proxy software your work uses. So it not only regulates but helps, say if you type in an incorrect web address, it will pop up and say opendns

Answer 8

What Is Opendns

Answer 9

First: Google is your friend.

Second: Caps lock is not cruise control for cool. Turn it off.