When debugging is enabled on firewall kernel module using the ‘fw ctl debug’ command with required options, many debug messages are provided by the kernel that help the administrator to identify issues. Which of the following is true about these debug messages generated by the kernel module?
When the firewall kernel module debugging is enabled using the 'fw ctl debug' command, the debug messages are written to a buffer and collected using the 'fw ctl kdebug' command. This process involves writing the debug information to a pre-allocated buffer instead of directly to files or consoles.
A is the answer
start debug with: fw ctl kdebug -T -f > <FILE>
Correct answer is A.
The Correct Answer is A
The Correct Answer A CCSM R80 Study guide pg 93. The Kernel mode process writes debug messages to the buffer. Therefore, it is necessary to define a sufficient buffer, using the following command: fw ctl debug -buf <buffer size> … this is also why an error message, generated outside of a debug, is sent to the console and an error message, generated during a debug, is sent to the debug buffer with all the other debug information.
B is the Answer: Page 180 on the studenty book: When debug information is sent to the operating system, the inf ormation is referred to as a console message because in most operating systems, the messages are printed to the console and copied to /var/log/messages