Novell GROUPWISE 7 - MULTI-SYSTEM ADMINISTRATION, Руководство пользователя

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14 GroupWise 7 Multi-System Administration Guide
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IMPORTANT: A GroupWise system’s version is determined by the version of the Message
Transfer Agent (MTA) running in the system. If your system includes multiple versions of the
MTA, determine which MTA will be used when connecting to the other system and use that MTA’s
version when reading the table.
1.2 Dynamic Internet Links
The dynamic Internet link capability of the GroupWise Message Transfer Agent (MTA) enables it to
use Domain Name Service (DNS) to associate the domain name in an Internet-style address (for
example, jsmith@novell.com) to an MTA assigned to receive messages for that domain name. After
the address has been resolved, the sending MTA uses the GroupWise Message Transfer Protocol
(GWMTP) to connect with and transfer messages to the destination MTA.
Because messages are transferred directly from one MTA to another, no GroupWise client
functionality is lost. Users can perform Busy Searches, retract sent messages, and see the status of
their outgoing messages, just as if the recipient were in the same GroupWise system. In addition,
users are able to use well-known Internet-style address syntax (for example, jsmith@novell.com).
Administratively, using dynamic Internet links enables you to avoid defining users from other
GroupWise systems in your GroupWise system. As long as the sender knows the recipient’s
Internet-style address, and the recipient’s domain name is registered in DNS and associated with an
MTA, the message is properly routed to the recipient.
For information about connecting GroupWise systems via dynamic Internet links, see Chapter 2,
“Using Dynamic Internet Links,” on page 17 .
1.3 Direct Links
The direct link capability of the MTA enables it to use a mapped or UNC path to access a domain
directory in another GroupWise system or to use TCP/IP to connect to the domain’s MTA. This is
the same functionality that enables two domains in the same GroupWise system to be connected.
Because messages are transferred directly from one MTA to another, no GroupWise client
functionality is lost.
Administratively, you can use the External System Synchronization feature to exchange information
between the two systems and enable users to select addresses from the Address Book, or you can
choose to not exchange information and require users to enter a fully-qualified address
(
userID . post_office . domain or user @ host ).
For information about connecting GroupWise systems via direct links, see Chapter 3, “Using Direct
Links,” on page 27 .
1.4 Gateway Links
If you can’t establish a direct link (mapped path, UNC path, or TCP/IP connection) between
domains in two systems, you can use a GroupWise gateway to link the two systems. Depending on
the gateway used, some GroupWise functionality might not be available when sending messages
between systems.
For information about connecting GroupWise systems via gateways, see Chapter 4, “Using Gateway
Links,” on page 33 .