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hostA hostB °²×°rhel5.4 ÅäÖÃrhcs¼¯ÈºÌ×¼þ£¬¼¯Èº×´Ì¬Õý³£¸¡¶¯ip¡¢Îļþϵͳ¶¼¿ÉÒÔÕý³£Çл»¡£
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/etc/hosts

192.168.0.1    hostA
192.168.0.2    hostB
192.168.0.3    ha
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listener.ora

# listener.ora Network Configuration File: /app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
# Generated by Oracle configuration tools.

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = ORCL)
      (ORACLE_HOME = /app/oracle/product/11.2.0/dbhome_1/)
      (PROGRAM = extproc)
    )
  )

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = ha)(PORT = 1521))
    ) <


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