Resolution of errors encountered when signing in after Oracle installation is complete

1 prompt no monitoring service

WORKAROUND: Open net Configuration Assistant follow the prompts to delete the existing listening service, and then create one again.

2 SQL plus login prompts username or password invalid

Cause: "Sqlnet" is included in the Sqlnet.ora file below the Oracle_home\network\admin folder. authentication_services= (NTS) ".

This line means that the operating system defaults to the SYSDBA binding authentication method

Workaround: For the above reasons, the host string must be entered correctly when logging in using SQL Plus: Global database + as SYSDBA. For example, the global database name is: MyOracle,

The host string should be written as myoracle as Sysdba

The above problem is I met, personally solve. Welcome to criticize and correct!