Control UI: 11g use https to access the em control web UI, not http
Port Note: if you have another application with DB running in your server, then DB install will auto allocate a new number for your DB. you have be clear about what DN already running in your server. Such as I install a Oracle SES first. it has a DB inside. then when i install the oracle DB 11g in this server, DB port will be 1522. the install steps will not alert or tell you any info about this, you can go to em control UI to find out the listener listen to which port.