oracle em 访问不了，求助大家~
大家好：
在虚拟机中安装了redhat5+oracle10g，打开了监听，打开了em
但是为什么客户端还是访问不了？
新手，求助大家了~

本地的tsnames：
# tnsnames.ora Network Configuration File: D:\oracle\product\10.2.0\client_1\NETWORK\ADMIN\tnsnames.ora
# Generated by Oracle configuration tools.
192.168.198.131 =
  (DESCRIPTION =
  (ADDRESS_LIST =
  (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.198.131)(PORT = 1521))
  )
  (CONNECT_DATA =
  (SERVICE_NAME = orcl)
  )
  )

虚拟机listener.ora：
SID_LIST_LISTENER =
  (SID_LIST =
  (SID_DESC =
  (SID_NAME = PLSExtProc)
  (ORACLE_HOME = /oracle/app/product/10.2.0/db_1)
  (PROGRAM = extproc)
  )
  (SID_DESC =
  (GLOBAL_DBNAME = Oracle8)
  (ORACLE_HOME = /oracle/app/product/10.2.0/db_1)
  (SID_NAME = orcl)
  )
  )
LISTENER =
  (DESCRIPTION_LIST =
  (DESCRIPTION =
  (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.198.131)(PORT = 1521))
  (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
  ) 


------解决方案--------------------
防火墙关闭了？

错误信息是什么？