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External DNS question

Posted on 2007-12-03
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Last Modified: 2010-04-21
Can someone please explain what External DNS is, what it does and how to set it up please?
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Question by:computermdnow
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8 Comments
 
LVL 7

Expert Comment

by:lacrewga
ID: 20398492
DNS converts an IP address to a domain name. External DNS allows to you have your settings on a computer outside of your domain. Wherever you registered your domain name, godaddy, enom etc., will have scripts to allow you to assign static IPs to your domain name. These same people can help you make any changes that you may require.
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Author Comment

by:computermdnow
ID: 20398639
I see, i have a server at home with AD setup. I dont have a static IP but I use No-IP to map my domain name to my IP address for my router. If i want to hit up a host on my network at home I cant.
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Expert Comment

by:lacrewga
ID: 20398832
Excuse me... I didn't understand. If you have dsl that keeps changing IP after a while, there are services that will help you to do this... http://www.dyndns.com/.
However, if you have a server at home, and a particular workstation at home that you want to access, there are several options. Is this what you want to do?
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Author Comment

by:computermdnow
ID: 20398881
for the most part, I want to understand and setup external DNS. I access my workstations via logmein.com and i have RDP forwarded to my server so im ok on remote access. Thank you.
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LVL 7

Expert Comment

by:lacrewga
ID: 20399095
There a tons of sites devoted to helping you. To see a few google ? external dns

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Author Comment

by:computermdnow
ID: 20399147
I was looking for a proffesional to explain but ok.
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Accepted Solution

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lacrewga earned 2000 total points
ID: 20399391
The rules used to be that you had to have 2 DNS servers. You can have DNS setup on your server at the house pointing to external DNS servers or you could have a public IPed Computer at your house running DNS services. Most people opt for External due to expense, maintenance etc. I will describe external DNS and Enom.com as  the actual physical location for the DNS servers.
You have register site called mysite.com. All traffic on the internet uses IP addresses that are interpreted by nameservers. At enom, I have records that correspond to mysite.com. These are for website location, mail server location etc. You can manually set these to the public ip address that represents your mail server, web server etc. These servers may or may not have a cache operating to speed things up, but after a certain amount of time, they will propagage the info that you have setup to the rest of the world. DNS is just a translator. I'm sure someone could have done this better. But good luck...
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Author Closing Comment

by:computermdnow
ID: 31412431
Thats what I was looking for. Thanks
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