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History Oracle Networking
Evolution Network Protocols
Oracle Networked Computers
Distributed Database Features
Transparent Network Substrate
SQL Handles Connections
SQL Net Enhancements
Distributed Database Connectivity
Net Services Architecture
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Components Functions tnsnames.ora
sqlnet.ora File Location
Sqlnet ora File Characteristics
Net Communications Process Level
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Database Link Connection
SQLnet Architecture Conclusion
sqlnet Client/Server Components
Listener Manages Oracle Connection
Configuring Oracle Listener
Oracle Net Assistant
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Route Client connection Requests
Set TNS Timeout Value
Setting Listener Password
lsnrctl Listener control Utility
Start listener using lsnrctl
Stop Listener via lsnrctl
Setting Up Protocol Listeners
Client side Configuration
Windows Client Architecture
NET Configuration Assistant
Running Oracle Installer
Starting Oracle Listener - Exercise
Describe the functions of the listener
Understand the internal functions of the listener.
This exercise is worth a total of 10 points. To receive full credit, you should be able to explain in nontechnical terms (plain English), the security options available for controlling the Oracle Net environment. Your answer should be understandable to a manager who knows nothing about Oracle or Oracle Net.
Imagine that you have been approached by the security manager of your shop, who wants to ensure that the listener remains running and that unauthorized personnel are not allowed to perform listener functions.
Complete the following steps:
Explain, in the form of a short paragraph, how the listener functions can be protected within Oracle and UNIX.
Type the Oracle commands that are used to enforce security.
Identify the UNIX files that require protection, and type the UNIX commands that are used to protect these files.
Submitting the exercise
Type or paste the answers to the questions above into the text box beneath each question. Then click the
button below to submit your answers and view a results page. Remember that you must submit all your responses to this exercise at once.