The Oracle Connection Manager
The Oracle Connection Manager portion of Oracle Net acts as a router used to establish database
communication links between otherwise incompatible network protocols as well as to take
advantage of multiplexing and access control.
The advantage of an Oracle Connection Manager is that all servers do not have to use the same
communications protocol. Each server can use the communications protocol that is best suited
to its environment and will still be able to transfer data back and forth with other databases. This
communication takes place regardless of the communications protocols used on the remote servers;
the Oracle Connection Manager takes care of the differences between the protocols. The protocols
supported by Oracle Connection Manager are IPC, Named Pipes, SDP, TCP/IP, and TCP/IP with SSL.
You can use multiple access paths to handle different client requests. The Oracle Connection
Managers will select the most appropriate path based on path availability and network load. The
relative cost of each path is specified via the Network Manager utility when the Oracle Connection
Managers are set up.
In an intranet environment, the Oracle Connection Manager can be used as a firewall for Oracle
Net traffic. You can establish filtering rules to enable or disable specific client access using the
Oracle Connection Manager. The filtering rules can be based on any of the following criteria:
Destination host names or IP addresses for servers
Destination database service name
Source host names or IP addresses for clients
Whether the client is using the Oracle Advanced Security option
The Oracle Connection Manager is used to enhance your firewall security by filtering out
client access based on one or more aspects of the filtering rules you create.
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