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added basic external DNS faq
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FAT32 only supports file size of <4GB.  It is recommended that you format your external usb drives to ext3.
 
FAT32 only supports file size of <4GB.  It is recommended that you format your external usb drives to ext3.
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===External DNS===
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To allow external users to communicate with your server, you must have correctly configured DNS records. Once you have purchased a domain, you should configure the following records (customised if necessary) to allow web and email communication:
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1. An A record, myserver.mydomain.com, pointing to the external IP address of your server
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2. A CNAME record, *.mydomain.com, pointing to the A record myserver.mydomain.com [this is a catchall that allows aliases such as www.mydomain.com and mail.mydomain.com to be resolved without having to create multiple CNAME records]
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3. An MX record, pointing to myserver.mydomain.com, to allow for email delivery
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If your registrar does not allow you to create DNS records, you may use a free service such as http://www.zoneedit.com or similar.
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The example shown assumes that your server is operating in Server and Gateway mode and has a static IP address. Depending on your network design and server configuration, the example may need to be modified. For example, if you use a Dynamic DNS service, you would need to modify the A record to point to your Dynamic DNS hostname, rather than a static IP address.
    
===Domains===
 
===Domains===

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