各种TNS报错总结--监听器及tnsnames.ora配置文件各种出错总结 - 数据库编程

SS = (PROTOCOL = TCP)(HOST = 192.168.1.222)(PORT = 1521)) 手动将HOST中的IP改为一个不存在的IP即可
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = bys1)
)
)
[oracle@bys001 ~]$ ping 192.168.1.222
PING 192.168.1.222 (192.168.1.222) 56(84) bytes of data.
From 192.168.1.211 icmp_seq=2 Destination Host Unreachable
From 192.168.1.211 icmp_seq=3 Destination Host Unreachable
[oracle@bys001 admin]$ tnsping test
TNS Ping Utility for Linux: Version 11.2.0.1.0 - Production on 07-NOV-2013 23:08:12
Copyright (c) 1997, 2009, Oracle. All rights reserved.

Used parameter files:

Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.222)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = bys1)))
TNS-12543: TNS:destination host unreachable
[oracle@bys001 admin]$ sqlplus bys/bys@test
SQL*Plus: Release 11.2.0.1.0 Production on Thu Nov 7 23:08:21 2013
Copyright (c) 1982, 2009, Oracle. All rights reserved.
ERROR:
ORA-12543: TNS:destination host unreachable

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各种TNS报错总结--监听器及tnsnames.ora配置文件各种出错总结(二)