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snatch11

4 posts

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#93275 17-Nov-2011 09:20
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Hi All, this is my first time posting.
In our office we run our own mail server with Kerio connect, on a MAc oS 10.6 server machine.
When I am in the office, I have to set the incoming mail settings to the IP address of the server (192.168.5.X)

When I go home or out of the office I have to change this to mail.mydomain.co.nz
While its not much of a problem, I would prefer not to have to change my mail settings all the time, how do I get it to work seamlessly whether I am in the office or at home?

Doing some google research, I think DNS may not be set up on the Mac server. The IT guy has left our company and is proving to be difficult to work with, so its up to me now.

Anyone know how to set up DNS correctly on Mac server 10.6? I am not technical so very simple directions please :)
Also if someone could confirm that in fact I do need DNS for this to work, wouldn't want to waste time trying to set up DNS if it doesn't solve my problem. 

many thanks in Advance

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Ragnor
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  #546459 17-Nov-2011 13:20
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If mail.yourdomain.co.nz works from home that means you probably already have public dns setup for it.

It looks like your work network is behind NAT so it's probably that your firewall/router is not allowing local loopback for the address which is why it's not working internally.

I think you can either enable nat loopback for that address in your router/firewall OR add private internal dns for the address (this is often called split dns).

Is the Mac server doing your public dns currently?   

Not familiar enough with Mac OSX Server to say whether it will allow you to setup split dns, probably not.

Also probably need to know more about your network, are servers in a public facing range not behind NAT etc?



gehenna
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  #546471 17-Nov-2011 13:34
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Adding a DNS record internally pointing mail.mydomain.co.nz to the IP of your internal mail server will do the trick.


snatch11

4 posts

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  #546473 17-Nov-2011 13:37
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Thank you for all the reply's, I guess the question now is does anyone know the best and/or most simple way to add the dns record? I don't think we have dns set up on the server. Anyone done it before on a mac server?



snatch11

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  #546477 17-Nov-2011 13:46
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@Ragnor
The public ip address is provided by Vodafone. That ip address resolves to mail.mydomain.co.nz and the modem/router is configured to port forward to the ip address of the mac server.
This is as much as I know from the notes left behind from previous IT guy 

trig42
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  #546489 17-Nov-2011 14:00
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When you are at work, do an IPCONFIG/ALL in a CMD prompt (assuming you are using windows??) or if on Mac go to Network in System Preferences and find out what your DNS server is. If it is the IP address of your Router, then you need to change a setting in the router to forward all requests sent to mail.yourdomain.com to the IP address of the Mac Server. If your DNS address points to the IP address of the Server, then that setting will need to be done on the server.

I don't know if your Router/Firewall or the Mac server will do this, but that is what needs to be done.

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