Oracle 10g Console Logon Io exception: Unknown host specified

Source: Internet
Author: User

When I use ORACLE 10 Gb, I use system to log on to the enterprise manager, but I can log on to some Oracle functions (for example, after logging on, click the "manage" menu to open the management interface) the following errors may occur:

Io exception: Unknown host specified;

"Java. Lang. Exception: exception in sending request: NULL ".

Note: This is also the case even when other machines are used to connect to Oracle on this machine. However, you can use commands to create net configurations.

Solution:

Step 1: Find 10.2.0 \ db_1 \ kevin_orcl \ sysman \ config \ EMD. properties (kevin_orcl is the directory name on my local machine: servername_sid. If it is a custom $ ORACLE_HOME, change it by yourself)

Step 2: use NotePad to open EMD. properties. The default value of agenttzregion is GMT, which can be changed to your time zone. For example:
Agenttzregion = Asia/Shanghai

NOTE: For the time zone list, see 10.2.0 \ db_1 \ sysman \ admin \ supportedtzs. lst. Alternatively, run the following statement to obtain timezone information: Select * from V $ timezone_names

Step 3: restart the machine or oracledbconsole <Sid> Service

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