TCPADMINPORT

The TCPADMINPORT option specifies the port number on which the server TCP/IP communication driver waits for requests for TCP/IP and SSL-enabled sessions other than client sessions. This includes administrative sessions, server-to-server sessions, storage agent sessions, library client sessions, managed server sessions, and event server sessions.

Using different port numbers for the options TCPPORT and TCPADMINPORT enables you to create one set of firewall rules for client sessions and another set for the previously listed session types. By using the SESSIONINITIATION parameter of REGISTER NODE and UPDATE NODE commands, you can close the port specified by TCPPORT at the firewall, and specify nodes whose scheduled sessions will be started from the server. If the two port numbers are different, separate threads are used to service client sessions and the session types. If you allow the two options to use the same port number (by default or by explicitly setting them to the same port number), a single server thread is used to service all session requests.

Client sessions attempting to use the port specified by TCPADMINPORT are terminated (if TCPPORT and TCPADMINPORT specify different ports). Administrative sessions are allowed on either port, (unless the ADMINONCLIENTPORT option is set to NO) but by default administrative sessions use the port that is specified by TCPADMINPORT.

SSL-enabled sessions that use the TCPADMINPORT option have the same limitations as the SSLTCPADMINPORT option. The following types of sessions do not use the Secure Sockets Layer (SSL) protocol:
  • Network Data Management Protocol (NDMP)
  • Automated Cartridge System Library Software (ACSLS)
  • Database restore operations
If the ADMINONCLIENTPORT option is set to NO, SSL-enabled sessions for the administrative client require that different port numbers are specified for the TCPADMINPORT andTCPPORT options.

Syntax

Read syntax diagramSkip visual syntax diagramTCPADMINPort port_number

Parameters

port_number
Specifies the port number of the server. Valid values are 1024 - 32767. The default is the value of TCPPORT.

Examples

tcpadminport 1502