Connection manager

Can connect to Oracle Connection Manager in Traffic Director Mode. About Oracle Connection Manager in Traffic Director ModeOracle Connection Manager in Traffic Director Mode is a proxy that is placed between supported database clients and database instances. Configuring cman.ora File for Oracle Connection Manager in Traffic Director ModeYou can set up Oracle Connection Manager in Traffic Director Mode using the TDM=YES setting in the cman.ora file. Configuring a Wallet for Oracle Connection Manager in Traffic Director Mode Proxy Authentication Configuring Databases for Oracle Connection Manager in Traffic Director Mode Proxy AuthenticationEvery database to which an application connects through Oracle Connection Manager in Traffic Director Mode must have a user, for example, tdm. Configuring Service Registration with Oracle Connection Manager in Traffic Director ModeTo configure service registration, include the service name entry in the tnsnames.ora file. Also, include a descriptor that specifies the listening address of Oracle Connection Manager in the init.ora file. Configuring Proxy Resident Connection Pool in Oracle Connection Manager in Traffic Director Mode Configuring Oracle Connection Manager in Traffic Director Mode for Unplanned EventsOracle Connection Manager in Traffic Director Mode implicitly subscribes to Fast Application Notification (FAN) events. For this events must be enabled in oraaccess.xml. Configuring Oracle Connection Manager in Traffic Director Mode for Planned Down EventsOracle Connection Manager in Traffic Director Mode implicitly subscribes to Fast Application Notification (FAN) events. For this events must be enabled in oraaccess.xml. Configuring Oracle Connection Manager in Traffic Director Mode for Service AffinityConfigure Oracle Connection Manager in Traffic Director Mode to modify the default load distribution mechanism for routing incoming connection requests. Configuring Transport Layer Security on Oracle Connection Manager in Traffic Director ModeCreate a wallet on the Oracle Connection Manager in Traffic Director Mode server, and then specify the TCP/IP with Transport Layer Security (TLS) listening endpoint and wallet location in the cman.ora file. Enhancements to Oracle Connection Manager in Traffic Director ModeOracle Connection Manager in Traffic Director Mode now supports database links, which extends high availability and failover to databases. Oracle Connection Manager in Traffic Director Mode RestrictionsThese features are not supported with Oracle Connection Manager in Traffic Director Mode for all drivers. 10.3.1 About Oracle Connection Manager in Traffic Director Mode Oracle Connection Manager in Traffic Director Mode is a proxy that is placed between supported database clients and database instances. Oracle Connection Manager in Traffic Director Mode provides improved high availability (HA) (planned and unplanned), connection multiplexing support, and load balancing. This feature also provides an inband client notification mechanism to deliver planned shutdown for Oracle Connection Manager (CMAN) down and service down events to the OCI client. Additional CMAN parameters must be specified in the cman.ora configuration file to configure Oracle Connection Manager in Traffic Director Mode. To configure CMAN to act as an Oracle Connection Manager in Traffic Director Mode, new parameters such as tdm and tdm_threading_model must be added in the cman.ora configuration file. Oracle Connection Manager (CMAN) is the standard Oracle Net proxy for both Oracle RAC and non-RAC databases. The databases

Net Services Administrator's Guide Configuration and Administration of Oracle Net Services Configuring Oracle Connection Manager Oracle Connection Manager is a proxy server that forwards connection requests to databases or other proxy servers. It operates at the session level, and usually resides on a computer separate from the database server and client computers. Oracle Connection Manager is available for installation with Oracle Database 19c Enterprise Edition. It is a custom installation option on the Client disk. The primary functions of Oracle Connection Manager are: Access control: To use rule-based configuration to filter user-specified client requests and accept others. Session multiplexing: To funnel multiple client sessions through a network connection to a shared server destination. Learn how to configure Oracle Connection Manager features. About the cman.ora File Setting Up Oracle Connection ManagerIn order to set up Oracle Connection Manager, you must configure the proxy server, database, and clients. Configuring Oracle Connection Manager in Traffic Director ModeA current Oracle Database Client Interface (OCI) client or a supported older version OCI client (Oracle Database 11g Release 2 (11.2) and later) can connect to Oracle Connection Manager in Traffic Director Mode. Using Oracle Connection Manager as a Bridge for IPv4 and IPv6In some database connection environments, a client and database may use different versions of the IP protocol so that complete connectivity does not exist. In this case, at least two hops in the connection use different versions of the IP protocol. Starting and Stopping Oracle Connection ManagerAfter configuring Oracle Connection Manager, you can start and administer it using the Oracle Connection Manager Control (CMCTL) utility. Oracle Connection Manager EnhancementsOracle Connection Manager proxies and screens request for Oracle Database Server. 10.1 About the cman.ora File You configure the computer that hosts Oracle Connection Manager by setting parameters in the cman.ora file. The cman.ora file resides on the computer that hosts Oracle Connection Manager, and is located in the ORACLE_HOME/network/admin directory. Oracle Connection Manager will not start if the cman.ora file does not exist. This file includes the following components: Listening endpoint Access control rule list Parameter list Each Oracle Connection Manager configuration is encapsulated within a single name-value (NV) string, which consists of the preceding components. One computer can host any number of Oracle Connection Managers, each with its own entry in the cman.ora file. When defining more than one Oracle Connection Manager in the file, you can assign a default by giving only one a fully qualified host name. You can specify multiple rules for both client and Oracle Connection Manager Control utility (CMCTL) connections. The following guidelines apply when making changes: You must enter at least one rule for client connections and one rule for CMCTL connections. Omitting a rule results in the rejection of all connections for the rule type omitted. Oracle Connection Manager does not support wildcards for partial IP addresses. If you use a wildcard, then use it in place of a full IP address. The IP address of the client may be, for example, (SRV=*). Oracle Connection Manager supports

Oracle Connection Manager is a proxy server that forwards connection requests to databases or other proxy servers. It operates at the session level, and usually resides on a computer separate from the database server and client computers. Oracle Connection Manager is available for installation with Oracle Database 21c Enterprise Edition. It is a custom installation option on the Client disk. The primary functions of Oracle Connection Manager are: Access control: To use rule-based configuration to filter user-specified client requests and accept others. Session multiplexing: To funnel multiple client sessions through a network connection to a shared server destination. Learn how to configure Oracle Connection Manager features. About the cman.ora FileYou can set parameters in the cman.ora file to configure the computer that hosts Oracle Connection Manager. Setting Up Oracle Connection ManagerIn order to set up Oracle Connection Manager, you must configure the proxy server, database, and clients. Configuring Oracle Connection Manager in Traffic Director ModeA current Oracle Database Client Interface (OCI) client or a supported older version OCI client (Oracle Database 11g Release 2 (11.2) and later) can connect to Oracle Connection Manager in Traffic Director Mode. Configuring Oracle Connection Manager in Tunneling Mode for Reverse ConnectionOracle Connection Manager in tunnelling mode establishes tunnel connections between server CMAN and client CMAN. Clients can make reverse connections over tunnels by connecting to server cman. Using Oracle Connection Manager as a Bridge for IPv4 and IPv6In some database connection environments, a client and database may use different versions of the IP protocol so that complete connectivity does not exist. In this case, at least two hops in the connection use different versions of the IP protocol. Starting and Stopping Oracle Connection ManagerAfter configuring Oracle Connection Manager, you can start and administer it using the Oracle Connection Manager Control (CMCTL) utility. About CMCTL REST Interface CMCTL REST interface helps you manage Oracle Connection Manager (Oracle CMAN) instance from remote machines using REST interface. A client that supports HTTPS can issue CMCTL equivalent commands. Each REST API call must have WWW-Authenticate HTTPS header with Basic authentication method. Migrating CMAN Sessions During PatchingYou can migrate the established client/server sessions from one Oracle Connection Manager (CMAN) instance to another Oracle CMAN instance during a planned upgrade or patching of Oracle CMAN with zero downtime. Oracle Connection Manager EnhancementsOracle Connection Manager proxies and screens request for Oracle Database Server. 10.1 About the cman.ora File You can set parameters in the cman.ora file to configure the computer that hosts Oracle Connection Manager. The cman.ora file resides on the computer that hosts Oracle Connection Manager, and is located in the ORACLE_BASE_HOME/network/admin directory. If the cman.ora file is not present in the ORACLE_BASE_HOME/network/admin directory, then look for the file in ORACLE_HOME/network/admin directory.Oracle Connection Manager will not start if the cman.ora file does not exist. This file includes the following components: Listening endpoint Access control rule list Parameter list Each Oracle Connection Manager configuration is encapsulated within a single name-value (NV) string, which consists of the preceding components. One computer can