Oracle Linux link Oracle Linux installed. Oemapp console used after Oracle launched the consoles, and while the Add to Tree Dialog Database and filling : Hostname : 本机IP Before installing a good allocation SID:ora9i// Port Number:1521 Service Nothing changes, the formation of its own Then connect database interface input : UserName:sysman Password:oem_temp Close connection always suggested : I do not know why. (Landing) [ Closed window ]