With OEM, I can run tasks and dba support easily,
we also create custom scripts to monitor system activity, like max extents, tablespace etc.
With firewalls blocking our systems, seems so much trouble to monitor databases using OEM, I have to check which ports need to open etc.
Any suggestion to use a more generic non multiple ports connection to monitor a database, like to create a special trigger while an ORA- errors happen ?
Is there anyway we can look alert.log from sqlplus as well

thanks
vedi