SonicWALL 3 manual Additional Services offered by Dynamic DNS Providers

CHAPTER 16: Configuring Dynamic DNS

Additional Services offered by Dynamic DNS Providers

Some common additional services offered by Dynamic DNS providers include:

•Wildcards - allows for wildcard references to sub-domains. For example, if you register yourdo- main.dyndns.org, your site would be reachable at *.yourdomain.dyndyn.org, e.g. server.yourdo- main.dyndyn.org, www.yourdomain.dyndyn.org, ftp.yourdomain.dyndyn.org, etc.

•Mail Exchangers - Creates MX record entries for your domain so that SMTP servers can locate it via DNS and send mail. Note: inbound SMTP is frequently blocked by ISPs - please check with your provider before attempting to host a mail server.

•Backup MX (offered by dyndns.org, yi.org) - Allows for the specification of an alternative IP address for the MX record in the event that the primary IP address is inactive.

•Groups - Allows for the grouping of hosts so that an update can be performed once at the group level, rather than multiple times for each member.

•Off-Line IP Address - Allows for the specification of an alternative address for your registered hostnames in the event that the primary registered IP is offline.

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