I have installed Oracle AS 10.1.3.1 and then applied patch to upgrade it to 10.1.3.4

This OAS is configured to listen at port 80.

When I go to `http://localhost` after starting OPMN, i can wee the welcome screen.

But now I want to login to Enterprise Manager(em) console so I go to `http://localhost/em`
but this link doesn't work and says:

> 
> Not Found The requested URL `/em` was
> 
> 
> not found on this server.
> 
> 
> 

Please tell me how to start em console in OAS 10.1.3.4