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Author
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Topic: DNS through Godaddy (Read 2406 times)
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Joined: Aug 2006
Posts: 6134
TROLL HUNTER
 
 United States
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 Oct 17, 2007, 01:43:58 PM | #1 |
| I'm curious to understand DNS better. If you have your domains registered through Godaddy and hosting somewhere else other than Godaddy, how does one use Godaddys own name servers, to point to a 3rd party host which already has it's own nameservers? |
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Oct 17, 2007, 11:13:18 PM | #2 |
DNS is really simple. The best analogy is to equate DNS to the phone book. As with the yellow or white pages, each phone number is mapped to a name and address. DNS is similar in that an IP address is mapped to a domain name. Just like any phone number can have several people mapped to it, DNS can have mutliple domains mapped to a single IP depending on the host server configuration.
GoDaddy, in particular, hosts the DNS...
If DNS is a "phone book", GoDaddy is a huge white+yellow pages directory, it holds all the mappings for domains that are registered through them if the domain owner chooses to have GoDaddy have control over their DNS.
How DNS works ---
When you type "http://www.anysite.com" into your browser, the first thing your computer does is look at the local "hosts" file to see if there is a mapping, and if it doesn't find a match the next thing it does is poll your ISP's nameservers to resolve the domain to IP mapping. Which brings up a particular problem of ISP's having nameserver resolution issues, for example my former DSL ISP BellSouth had issues with their nameservers going down, so I would have to access sites by their IP address because the IP to domain name mapping wasn't working. A fix is to add a DNS server that's not the default for your ISP to workaround those issues. Ordinarily, when the DNS mapping is working, the first thing your resolver does is query your ISP's root servers and then they query the internet's root servers to resolve a domain to IP mapping. DNS is just a phonebook..
GoDaddy hosts the domains registered through them in their "phonebook" and if you you use the "Total DNS Control and MX Records" as pictured below...
You can map your domain to a particular IP by altering the "A" or address record. PTR records are "pointers" that are used to map an ancellary address to an already existing address. For example, if you wanted to have a vanity domain happy.mydomain.com, you would use an "A" record to map mydomain.com to an IP and the PTR record would map happy.mydomain.com to the "A" record. Beside "A" and "PTR" records, DNS also maps "MX" records which are mailserver records. An MX record, like a PTR record can mapped to an "A" (address) by using the @ symbol as a pointer.
I've tried to explain as best as possible but if you have more questions, feel free to ask. I love discussing this sort of stuff.
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Joined: Aug 2006
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TROLL HUNTER
United States
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Oct 18, 2007, 12:30:50 AM | #3 |
If I understand this right, you have to under "namservers" click on which option "hosted somewhere else" or "default parked here" and then click "Total DNS Control and MX Records"?
Godaddy is down for me(like their stupid website is most of the time) so I can't see the options right now and I think some websites talked about using the default parked option.
If you use NON-Godaddy DNS, then don't you just enter the "hosted somewhere else" option under and enter their nameservers they gave you, right? You won't have t edit anything in the Total DNS control since your not using Godaddys DNS in that case?
Also, when your host gives you an I.P you just simply can get it up by adding a "new record" to the A section and what do you enter, just the i.p address? Then you just need to add something to the MX record and that is it to get www and mail set up? |
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Oct 20, 2007, 02:38:54 AM | #4 |
If I understand this right, you have to under "namservers" click on which option "hosted somewhere else" or "default parked here" and then click "Total DNS Control and MX Records"?
If you want to park a domain, choose "Default Parked Nameservers" under the "Default Nameservers" tab. If you are pointing the domain at an IP, you use the "Custom Nameservers" option and set your IP information in the "Total DNS Control and MX Records" section.
Godaddy is down for me(like their stupid website is most of the time) so I can't see the options right now and I think some websites talked about using the default parked option.
If you use NON-Godaddy DNS, then don't you just enter the "hosted somewhere else" option under and enter their nameservers they gave you, right? You won't have t edit anything in the Total DNS control since your not using Godaddys DNS in that case?
If you are hosting somewhere else and they have supplied you an IP and are hosting your DNS you will still use the "Custom Nameservers" option and enter the nameservers where your DNS is hosted.
Also, when your host gives you an I.P you just simply can get it up by adding a "new record" to the A section and what do you enter, just the i.p address? Then you just need to add something to the MX record and that is it to get www and mail set up?
This is a basic configuration .... xxx.xxx.xxx.xxx = the IP address assigned by your hosting provider, mydomain.com = your domain name.
A (Host)
| Host | Points To | | @ | xxx.xxx.xxx.xxx |
CNAMES (Aliases)
MX (Mail Exchange)
| Priority | Host | Goes To | | 0 | @ | mydomain.com |
Hosting your DNS with the hosting provider is not recommended, if possible, use GoDaddy's DNS because they have one of the most effective DNS networks on the planet. You update a record through them and it usually propagates within a half hour worldwide. Other hosting companies may take as long as 48 hours to propagate. The reason why is GoDaddy is the single largest ICANN registrar on the planet and they hold the lion's share of domains. Remember, DNS is a two way street, while GoDaddy hosts the initial record, your hosting company's webserver must...
#1 - bind the ip address in their webserver software
#2 - map your domain to the IP address
One IP address can "VirtualHost" numerous domains, which is why a site will appear as "shared hosting" or "dedicated hosting" when you do a lookup at whois.sc
The last thing you want is to get your domain hosted on an "IP Stick" where the reverse lookup yields the machine name and not your domain. You'll have much difficulty sending email because the majority of mail servers equipped with the most basic anti-spam capabilities will do a reverse lookup to see that the mail is being sent from the domain the IP is bound to. Additionally, your sites will suffer in search engine indexng if your domain doesn't resolve reverse DNS. Google is particularly picky about the reverse DNS and generally considers sites hosted on "IP Sticks" to be spam or junk domains.
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Oct 20, 2007, 03:46:06 AM | #6 |
Correct, you don't need to use the "Total DNS Control and MX Records" if your DNS is hosted by your hosting provider.
As far as the "Default Parked Nameservers", when you set that, did you wait for the changes to take effect and make sure the domains were officially parked before you made further changes ? Sometimes if you make multiple changes to a domain the last change you make will over-ride the previous change. You have to understand how a "web interface" to DNS and such operates. To begin with, the changes are not made in "real time", the request is put into a queue and it is handled in order of precedence, certain actions take precedence over others. A "drop" for example will take precedence over a DNS or whois change. Whois will take precedence over a DNS change. Usually if you're trying to do a whois and DNS change, you should do the whois first, make sure it's active and then change the DNS. There are no real instructions about these type of actions but it is something you learn from experience.
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TROLL HUNTER
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Oct 20, 2007, 04:31:15 AM | #7 |
No I parked the the domain and it sat there with no changes for like 2 days so then I cancelled it when i wasn't seeing changes. You can see the nameserver change immediately in the whois information on all the domains so I don't know why it didn't park.
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Joined: Sep 2011
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Sep 20, 2011, 12:43:12 PM | #8 |
| servers, to point to a 3rd party host which already has it's own nameservers? |
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