Configure Oracle DB access
1. Services > Databases > Drivers > New Driver...
add
~/.netbeans/6.1/config/Databases/Driver/ojdbc14.jar
ok

2. Services > Databases > Drivers > Oracle > Connect using
Database URL: jdbc:oracle:thin:@192.168.0.1:1521:XE
Username: USER
Password: PASS

Copy config files

mkdir -p ~/.netbeans/6.1/config/Databases/Driver
cp ojdbc14.jar ~/.netbeans/6.1/config/Databases/Driver/
cp jdbc_oracle_thin__192_168_1_1_15.xml ~/.netbeans/6.1/config/Databases/Connections/jdbc_oracle_thin__192_168_1_1_15.xml
cp oracle_jdbc_OracleDriver.xml ~/.netbeans/6.1/config/Databases/JDBCDrivers/oracle_jdbc_OracleDriver.xml

# Links
http://netbeans.org/community/releases/69/relnotes.html