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Adam works as a Security Analyst for Umbrella Inc. The company has a Linux-based network comprising an Apache server for Web applications. He received the following Apache Web server log, which is as follows:

[Sat Nov 16 14:32:52 2009] [error] [client 128.0.0.7] client denied by server configuration: /export/home/htdocs/test

The first piece in the log entry is the date and time of the log message. The second entry determines the severity of the error being reported.

Now Adam wants to change the severity level to control the types of errors that are sent to the error log. Which of the following directives will Adam use to accomplish the task?

A.
CustomLog
Answers
A.
CustomLog
B.
ErrorLog
Answers
B.
ErrorLog
C.
LogFormat
Answers
C.
LogFormat
D.
LogLevel
Answers
D.
LogLevel
Suggested answer: D

Explanation:

The LogLevel directive is used in server Error log of the Apache Web server log. This directive is used to control the types of errors that are sent to the error log by constraining the severity level. Eight different levels are present in the LogLevel directive, which are shown below in order of their descending significance:

Note: When a certain level is specified, the messages from all other levels of higher significance will also be reported. For example, when LogLevel crit is specified, then messages with log levels of alert and emerg will also be reported.

Answer option B is incorrect. The ErrorLog directive is used to set the name and location of the file to which the server will log any errors it encounters. If the filepath does not begin with a slash sign (/), it is assumed to be relative to the ServerRoot. If the file-path begins with a pipe sign (|), then it is assumed to be a command that handles the error log.

Answer option A is incorrect. The CustomLog directive is used to log requests to the server. The format of the log is specified and the logging can be made conditional on request characteristics with the help of environment variables. Environment variables can be adjusted on a per-request basis with the help of the mod_setenvif or mod_rewrite module.

Answer option C is incorrect. The LogFormat directive can exist in one of the two forms. In the first form, only one argument is specified; and in the second form explicit format with a nickname is associated. This directive specifies the log format that is used by logs specified in subsequent TransferLog directives.

asked 18/09/2024
Alper Atar
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