Question

我无法从目标服务器上取下我的oracle EBS源服务器。

VISEBS是源，VISEBST是目标

source tnsnames.ora：

VISEBS=
    (DESCRIPTION=
            (ADDRESS=(PROTOCOL=tcp)(HOST=xx.xx.xx.149)(PORT=1521))
        (CONNECT_DATA=
            (SERVICE_NAME=VISEBS)
            (INSTANCE_NAME=VISEBS)
        )
    )
VISEBST=
    (DESCRIPTION=
            (ADDRESS=(PROTOCOL=tcp)(HOST=xx.xx.xx.150)(PORT=1521))
        (CONNECT_DATA=
            (SID=VISEBST)
        )
    )

目标tnsnames.ora：

VISEBS=
    (DESCRIPTION=
            (ADDRESS=(PROTOCOL=tcp)(HOST=xx.xx.xx.149)(PORT=1521))
        (CONNECT_DATA=
            (SERVICE_NAME=VISEBS)
            (INSTANCE_NAME=VISEBS)
        )
    )

VISEBST = (DESCRIPTION=
            (ADDRESS=(PROTOCOL=tcp)(HOST=xx.xx.xx.150)(PORT=1523))
            (CONNECT_DATA= (SERVICE_NAME=VISEBST)
                     (INSTANCE_NAME=VISEBST))
        )

在149输入输出：

TNS Ping Utility for Linux: Version 12.1.0.2.0 - Production on 05-APR-2018 06:50:07

Copyright (c) 1997, 2014, Oracle.  All rights reserved.

Used parameter files:
/u05/oracle/VISEBS/12.1.0/network/admin/VISEBS_xxxxx/sqlnet_ifile.ora


Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION= (ADDRESS=(PROTOCOL=tcp) 
(HOST=xx.xx.xx.150)(PORT=1521)) (CONNECT_DATA= (SID=VISEBST)))
TNS-12541: TNS:no listener

从150开始：

TNS Ping Utility for Linux: Version 12.1.0.2.0 - Production on 05-APR-2018 
06:50:21

Copyright (c) 1997, 2014, Oracle.  All rights reserved.

Used parameter files:


Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION= (ADDRESS=(PROTOCOL=tcp)(HOST=sal- 
devtl10.hosts.secure-24.net)(PORT=1521)) (CONNECT_DATA= (SERVICE_NAME=VISEBS) 
(INSTANCE_NAME=VISEBS)))

两台机器之间的所有ssh连接都运行良好。

造成这种情况的原因是什么。

Answer 1

EBS服务器配置了IP restrictions（通过sqlnet.ora中的tcp.invited_nodes）。如果配置了此项，您将只能从受邀节点执行TNS ping。可以通过autconfig变量添加新节点。

即使在tnsnames.ora下拥有主机名之后，也无法进行tnsping

1 个答案: