ORA-03136: inbound connection timed out
Cause: Inbound connection was timed out by the server because user
authentication was not completed within the given time specified by
SQLNET.INBOUND_CONNECT_TIMEOUT or its default value
Action: 1) Check SQL*NET and RDBMS log for trace of suspicious connections. 2)
Configure SQL*NET with a proper inbound connect timeout value if necessary.
Metalink上给出的解决方案如下:
1. set INBOUND_CONNECT_TIMEOUT_=0 in listener.ora
2. set SQLNET.INBOUND_CONNECT_TIMEOUT = 0 in sqlnet.ora of server.
3. stop and start both listener and database.
4. Now try to connect to DB and observe the behaviour
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