Podcast
Questions and Answers
Which feature can automatically cause a crash in the system and force a crash dump when no new daemons have been scheduled in the last 10 minutes?
Which feature can automatically cause a crash in the system and force a crash dump when no new daemons have been scheduled in the last 10 minutes?
What is the purpose of the external NMI button on some FortiGate models?
What is the purpose of the external NMI button on some FortiGate models?
What information is included in an entry in the crash log?
What information is included in an entry in the crash log?
What is the termination signal number for an unconditional kill?
What is the termination signal number for an unconditional kill?
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When is it usually required to manually terminate a process on a FortiGate system?
When is it usually required to manually terminate a process on a FortiGate system?
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Which termination signal number generates a crash log?
Which termination signal number generates a crash log?
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When can a crash log entry be considered suspicious?
When can a crash log entry be considered suspicious?
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What information can the crash log provide to Fortinet developers?
What information can the crash log provide to Fortinet developers?
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Which process manages SSL-VPN connections on FortiGate?
Which process manages SSL-VPN connections on FortiGate?
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What is the most common termination signal number for a segmentation fault?
What is the most common termination signal number for a segmentation fault?
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What should you check after an unexpected restart of a FortiGate device?
What should you check after an unexpected restart of a FortiGate device?
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What should you do if the FortiGate model doesn't support console logs?
What should you do if the FortiGate model doesn't support console logs?
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What is a crash dump message?
What is a crash dump message?
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What can crash dump messages provide to Fortinet developers?
What can crash dump messages provide to Fortinet developers?
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What should you do if a FortiGate device freezes?
What should you do if a FortiGate device freezes?
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What is the NMI watchdog?
What is the NMI watchdog?
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What should you do if a FortiGate device freezes and you cannot access its console port?
What should you do if a FortiGate device freezes and you cannot access its console port?
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What should you do if a FortiGate model doesn't have an NMI button?
What should you do if a FortiGate model doesn't have an NMI button?
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What happens when a FortiGate device freezes?
What happens when a FortiGate device freezes?
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What should you do if a FortiGate device restarts unexpectedly?
What should you do if a FortiGate device restarts unexpectedly?
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Study Notes
Crash Handling and Debugging
- The kernel can automatically cause a crash and force a crash dump when no new daemons have been scheduled in the last 10 minutes.
- The external NMI button on some FortiGate models is used to trigger a crash dump for debugging purposes.
Crash Log
- A crash log entry includes information about the crash, such as the reason for the crash and the process that crashed.
- A crash log entry can be considered suspicious if it reveals unusual or unidentified crash causes.
- Crash logs provide Fortinet developers with information about the crash, which helps them troubleshoot and fix issues.
Process Termination
- The termination signal number for an unconditional kill is 9 (SIGKILL).
- Signal number 6 (SIGABRT) generates a crash log.
- It is usually required to manually terminate a process on a FortiGate system when it is consuming excessive resources or is unresponsive.
Crash Dump and Freeze
- A crash dump message is a file containing information about a system crash.
- Crash dump messages provide Fortinet developers with detailed information about the crash, helping them identify and fix issues.
- The NMI watchdog is a feature that monitors the system and triggers a crash dump if it freezes.
- If a FortiGate device freezes, it is recommended to press the NMI button (if available) to trigger a crash dump.
- If the device freezes and you cannot access its console port, try using the NMI button or check the crash log for information.
- If a FortiGate model doesn't have an NMI button, you can try restarting the device or checking the crash log for information.
- After an unexpected restart of a FortiGate device, check the crash log and system logs for information about the crash.
- If a FortiGate model doesn't support console logs, check the crash log and system logs for information about the crash.
SSL-VPN
- The process that manages SSL-VPN connections on FortiGate is not specified in the text.
segmentation fault
- The most common termination signal number for a segmentation fault is 11 (SIGSEGV).
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Description
Test your knowledge on crash dump messages and how to retrieve them in this quiz. Learn about console logs, crash logs, and how to capture a crash dump message with a laptop. Keywords: crash dump message, console logs, crash logs, device crashes, laptop.
