Another noob seeking help with DNS and Postfix

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#1 Mon, 02/28/2011 - 12:52
firestar

Another noob seeking help with DNS and Postfix

Hi there.

I have been trying hard to find some answers, even searched, read the tutorials, and I am sure this has been addressed multiple times. Would appreciate if someone could please tell me the following:

  1. I have had shared hosting forever. Just got myself a VPS - do I need to make two DNS entries at the VPS or is it ok to make the change at the registrar? Do I have to have two IPs?

  2. I am sending out mail from postfix that is going as following format: @server1.mydomain.com; can I change it @mydomain.com? I have made changes in main.cf - but to no avail.

Thanks.

Tue, 03/01/2011 - 12:48
andreychek

Just got myself a VPS - do I need to make two DNS entries at the VPS or is it ok to make the change at the registrar? Do I have to have two IPs?

That all depends on whether you plan to host your DNS by yourself, using your VPS -- or whether you plan to use the DNS at your registrar.

Doing it at the registrar is less up front setup work, but it means you have to manually add a DNS record anytime you add a domain into Virtualmin.

I am sending out mail from postfix that is going as following format: @server1.mydomain.com; can I change it @mydomain.com?

Typically, the "From" address for any given email is set by the email client. Postfix may default to using your hostname when no "From" address is set -- but the key would be to change the settings for any email program sending email, and to make sure it's setting the correct "From" address.

-Eric

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