If you create any rules that allow access to hostname destinations that must be resolved by a DNS name server, you must create another rule at the Organization (O) or Organizational Unit (OU) object that contains the Novell BorderManager 3.7 server to allow the server to resolve the hostname.
To create an access rule to allow the server access a DNS host to resolve a hostname:
In NetWare Administrator, right-click the object where the access rules are to be created and select Details.
Select the Novell BorderManager 3.7 Access Rules page and click Add.
In the Access Rule Definition page, specify Allow (the default value).
For Access Type, select DNS.
The port number 53 appears in the Port field. Allowing outbound access to port 53 enables the Novell BorderManager 3.7 server to issue a DNS query.
Under Source, accept Any.
Under Destination, accept Any to allow any DNS name server to resolve the hostname; otherwise select destinations as follows:
After you have added all the destinations > click OK.
(Optional) If you want the server to record all access attempts that match the rule, click Enable Rule Hit Logging.
Logging access attempts can affect server performance; however, it is recommended that you do so to detect unathorized activity.
Click OK, as necessary, until you return to the Novell BorderManager 3.7 Access Rules page > click OK to update the access rules.