Databases Reference
In-Depth Information
When the setup finishes it displays a warning that informs the user about the
security features and how to deal with them. Both Oracle 11g Release 1 and 11g
Release 2 encrypt repository information, and they require an encryption key. The
outcome shows the location of the key Enterprise Manager Encryption key file, take
note on this, it is very important.
You must provide backup procedures for the Encryption key file
generated to encrypt repository information. If you fail to do so, in
the event your installation faces a disaster scenario your repository
information will become permanently inaccessible.
The previously exposed cases show a basic command line used to configure the
console; however there are plenty of commands you can use to further customize the
process and make it more comprehensive and batch oriented.
Manually assigning EM managing ports
In the previous examples the EMCA was used to configure the console with basic
parameters. The HTTP port number is not required; the EMCA will automatically
assign a default port number using a monotonically increasing value, which starts
at 5500. If you want to manually assign a port number you can do it, just be careful
to use a unique port number otherwise you may collide with another previously
assigned port.
In this scenario the user assigns a port number to the console. Two prerequisites
must be met prior to this operation. They are as follows:
• Check the port number is free
• Make sure the target Oracle instance is up and running
Checking the port means ensuring that the port is currently not in use nor taken by
another application, even if the application is currently down. A good practice is
to plan your installations, this way you can always control the assigned ports and
you will always know which ports are already assigned. You can issue the
netstat
command from the command line to find out if the port is currently in use as shown
in the next image.
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