Oracle 11gR2 RAC 数据库不能连接(ORA-12537TNS:connection closed)的解决

问题：

SQL> conn system/123123@MECBS

ERROR:
ORA-12537: TNS:connection closed

Warning: You are no longer connected to ORACLE.

解决：

chmod 6751 $ORACLE_HOME/bin/oracle

原文：http://7642644.blog.51cto.com/7632644/1576656