These days need to deploy a system to Linux as a development prototype of the system. The system used by the system is on Oracle 9i Linux, the database, the brigade has gone long, finally thought that the result was reported, but the result was wrong when the listener was launched, and the startup could not be started. It is really depressed. Originally, some fear of Oracle is not to create a database. Some parameters are not to. I have encountered problems, it is really afraid of Oracle. It's still a few hours, but that day is the weekend, I still don't get it next week. I returned home with a tired mood. Tomorrow today, still need to get oracle, or old, listening is not started. Changed an example and used the old database in the previous system. Still not, today is Monday, emotions are still very affirmative, I want to be the problem of the machine environment, I suddenly want to have it, find a / etc / hosts file, the IP address of the machine is different, modified into the present The IP address is just fine. It's really good, I think I don't have to fear Oracle anymore.