14.6. Exam Essentials
Understand how to secure the listener. Be aware of the security issues that affect the listener and how to address them. Understand the methods that can be used to set a password on the listener. Be aware of valid node checking and how it is used. Know the methods for securing the new listener by limiting the libraries that it can access and by executing the process from an account with minimal operating system privileges. Know the other methods for securing the listener such as applying patches, blocking SQL*NET traffic, and so on.
Be able to remove a default EXTPROC entry and add a separate listener to handle external procedure calls. Understand the purpose of external process services. Know how to remove the default ...
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