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DNS issue

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by eminent87

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Hi,

We recently hosted our website through earthlink but for some reason our internal network can't get to it. I know it has something to do with our dns server because when i try to ping the address to the website, it'll reply. But if I try pinging the url (www.example.com) then it will come back as "unknown host name." Now, this is only to our website, all other site it works just fine.

There's another option that I can take, and this is changing all clients dns to the external dns that our isp provided us but then if I do this then all client would take forever to logon to the network because it will try to register our domain to the dns which it can't find.

Can any help me with this because I don't know much about dns. Is there a way to add the new site to our internal dns server so that it will update throughout our network?

8 replies

by timwalsh

2 questions:

1. Can your website be reached for outside of your network? Your website might not be properly registered with Earthlink's DNS servers.
2. Does the domain part of the website's URL (whatever.com) match the name of your internal domain? If so, and your internal DNS server thinks it is authoritative for this domain, then it isn't passing the DNS query relating to the website outside of your domain.

2 Possible fixes:

1. Add a host record for your website to your DNS forward lookup zone. This should work if your website domain name and your internal domain name are the same.

2. Add your ISP's DNS server IP address to the forwarders tab of the properties for your internal DNS server. If you are able to resolve(all?) other external websites, this probably won't fix anything or may already be done.

by bobho

Try having your Internal DNS server forward unknown queries to your ISP.

DrBob:>)

by shortbus

Depending on how long it's been, I wouldn't worry. If it's only been a day or 2 then it might just be taking that long for the settings to propogate throughout the internet.

If it's been longer then yea, start worrying. Is the external domain name the same as your internal domain name?

If so, then you'll have to create a static A record that points to the web servers IP address.

If not, then you can create a new zone on your internal DNS server with the same domain name as your website with a static A record inside of that zone.

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