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DNS setup problem

786 Views 4 Replies Latest reply: Nov 27, 2012 7:28 AM by power mac RSS
power mac Level 2 Level 2 (155 points)
Currently Being Moderated
Nov 19, 2012 6:12 AM

Hello experts, thanks for reading my post,

 

 

I need assistance to setup Mac os X 10.6 Server (DNS section)

 

I have mac mini server that runs 10.6 Server version and  have static ip (assumed 12.34.567.89 )address  and router  port forwarded  to server using DMZ host. My server will host cupel of web sites as well as few email accounts

 

I have domain name from my local registrar (nic operator  ) and  the domain is configured from NIC server to pointed  my office ip (static ip) from registrar account.

 

 

I installed my server from beginning  and  give the primary dns name server.mydomain.sk, I didn't setup any other services and when the server starts right after its first setup. i opened the Server Admin app and select DNS service and select Zones pane

 

Please take a look at my photos here and can somebody tell me what is wrong on my settings ?

 

DNZzome.jpg

checkdns.jpg

 

Thank you for your kind help

  • Camelot Level 8 Level 8 (45,670 points)
    Currently Being Moderated
    Nov 19, 2012 12:03 PM (in response to power mac)

    It's hard to tell from the available data, but the most obvious problem is the fact you have an Alias (CNAME) record for server.mycompany.com that points to... server.mycompany.com.

    In other words, a circular reference where one hostname points to itself.

     

    Nix the alias record, since it isn't needed. Then see if you continue to have problems.

  • Camelot Level 8 Level 8 (45,670 points)
    Currently Being Moderated
    Nov 22, 2012 11:08 PM (in response to power mac)

    It's hard to answer why mail doesn't work - there are many possibilities.

     

    Most importantly, though, are you talking about receiving mail from external hosts/domains? or from your own?

     

    If you're talking about from external sources, then your own DNS server has little or nothing to do with external DNS (at least as it's currently setup).

     

    Your DNS server is saying that mail for your domain is handled by server.mydomain.sk, and that server's address is 192.168.1.20.

     

    No external host in the world is going to be able to connect to that address, so if this server is running your public DNS you need to change that.

     

    What MOST people do is run two DNS servers - one is internal to their LAN and knows about all their private addresses (192.168.x.x, etc.). This server also knows all the details of your network, such as printers, clients, switches, etc. that you don't (usually) want exposed to the outside world.

    Then there's a second DNS server that handles all public queries and it knows about the hosts that external users might lookup - for example your domain's web server address, mail server, etc.

     

    These two servers could be on the same machine, but they are commonly separate. For small networks, many people use their ISP or domain registrar to handle the public side of their DNS.

     

    Without knowing more about your domain and how you (think you) are running DNS, it's hard to know if that's your issue.

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