Symantec 360R - Security Gateway SGS Administration Manual page 173

Table C-15 Dynamic DNS tab field descriptions (Continued)
Section Field
Standard Service User Name
Password
Verify Password
Server
Host Name
Standard Optional Wildcards
Settings
Backup MX
Mail Exchanger
WAN/ISP field descriptions
Description
User name for the account that you create with a
dynamic DNS service.
Password for the account that you create with a
dynamic DNS service.
Retype the dynamic DNS account password.
IP address or DNS-resolvable name of the server
that provides the dynamic DNS service. For
example, members.dyndns.org.
Name to assign to the security gateway. For
example, if you want marketing as the host
name, and the domain name is mysite.com, you
access the security gateway by
marketing.mysite.com.
Enables external access to
*.yoursite.yourdomain.com where:
* is a CNAME like www, mail, irc, or ftp.
■
yoursite is the host name.
■
yourdomain.com is your domain name.
■
Enables a backup mail exchanger. If you check
this check box, the mail exchanger you specify in
the Mail Exchanger text box is used first; if it
fails, the backup mail exchanger (supplied by the
dynamic DNS service) takes its place.
Mail exchangers specify which server you want
to handle email sent to a given domain name.
For example, you have www.mysite.com and
mail.mysite.com. You have your Web server
configured to allow browsing to both
www.mysite.com and mysite.com. You want
email that comes to @mysite.com to be handled
by the mail server and not the Web server. You
set up a mail exchanger to redirect @mysite.com
email to mail.mysite.com.
Host names in mail exchangers cannot be
CNAMEs. You cannot specify your mail
exchanger using an IP address. Refer to your
dynamic DNS service documentation for more
information.
Field descriptions 173