ora file does not
even need to exist unless you want to add additional listeners or provide static registration entries:
if there is no listener.ora file, the default listener name is LISTENER, the default value for PROTOCOL
is TCP, the HOST parameter defaults to the server??™s host name, and the default value for PORT
(the TCP/IP port number) is 1521.
Chapter 15: Oracle Net 519
NOTE
If you change the Oracle software home directory for an instance, you
need to change the listener.ora file for the server.
listener.ora Parameters
The listener.ora file supports a large number of parameters. The parameters should each be suffixed
with the listener name. For example, the default listener name is LISTENER, so the LOG_FILE
parameter is named LOG_FILE_LISTENER. The listener.ora parameters are listed in Table 15-1.
Parameter Description
DESCRIPTION Serves as a container for listener protocol addresses.
ADDRESS Specifies a single listener protocol address. Embedded
within a DESCRIPTION.
QUEUESIZE Specifies the number of concurrent connection requests
that the listener can accept on a TCP/IP or IPC listening
endpoint.
RECV_BUF_SIZE Specifies, in bytes, the buffer space for receive
operations of sessions. Embedded within a
DESCRIPTION.
SEND_BUF_SIZE Specifies, in bytes, the buffer space for send operations
of sessions. Embedded within a DESCRIPTION.
SID_LIST Lists SID descriptions; configures service information
for the listener; required for OEM, Oracle7, Oracle8
release 8.
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