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| Section | Objectives |
|---|---|
| Topic 1: Advanced Site-to-Site VPN Troubleshooting | - IKE and IPsec Debugging - VPN Tunnel Failures |
| Topic 2: Advanced Troubleshooting with Logs and Events | - Log Shipping and Storage - Log Indexing and Searching |
| Topic 3: Advanced Gateway Troubleshooting | - Traffic Drops and Status Errors - Kernel Debugging |
| Topic 4: Introduction to Advanced Troubleshooting | - Troubleshooting Methodology and Tools |
| Topic 5: Advanced Access Control Troubleshooting | - Layer and Rule Base debugging - Policy Installation Issues |
| Topic 6: Advanced Firewall Kernel Debugging | - fw ctl debug and chain modules - Packet Flow and Lifecycle |
| Topic 7: Advanced Client-to-Site VPN Troubleshooting | - Endpoint Security Client Issues - Mobile Access / SSL VPN debugging |
| Topic 8: Advanced Identity Awareness Troubleshooting | - User/Computer Authentication issues - Identity Collectors and PDPs |
| Topic 9: Advanced Management Server Troubleshooting | - Management Server Status and Processes - Database Maintenance and Backups |
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NEW QUESTION # 71
In some scenarios it is very helpful to use advanced Linux commands for troubleshooting purposes. Which command displays information about resource utilization for running processes and shows additional information for core utilization and memory?
Answer: C
Explanation:
The top command is a Linux command that displays information about resource utilization for running processes and shows additional information for core utilization and memory. The top command provides a dynamic real-time view of the system, showing the processes that are consuming the most CPU, memory, and other resources. The top command also shows the total number of processes, the system load average, the uptime, and the CPU usage by user, system, and idle. The top command can be customized by using various options and interactive commands to change the display, sort the processes, filter the output, and kill processes.
The other commands are incorrect because:
B : vmstat is a Linux command that displays information about the virtual memory, CPU, disk, and system activity. It does not show information about individual processes or core utilization.
C : cptop is a Check Point command that displays information about the firewall kernel activity, such as the number of connections, packets, drops, and rejects. It does not show information about other processes or memory usage.
D : mpstat is a Linux command that displays information about the CPU utilization by each processor or core. It does not show information about processes or memory usage.
Reference:
top(1) - Linux manual page
vmstat(8) - Linux manual page
cptop - Check Point Software
mpstat(1) - Linux manual page
NEW QUESTION # 72
During firewall kernel debug with fw ctl zdebug you received less information that expected. You noticed that a lot of messages were lost since the time the debug was started. What should you do to resolve this issue?
Answer: A
NEW QUESTION # 73
What is the simplest and most efficient way to check all dropped packets in real time?
Answer: A
Explanation:
The simplest and most efficient way to check all dropped packets in real time is C. fw ctl zdebug + drop in expert mode. This command is a shortcut command that sets the kernel debug flags to a predefined value and prints the debug output to the standard output. It is useful for general debugging of common issues, such as traffic drops, NAT, VPN, or clustering. It has a small buffer size and does not require additional steps to start or stop the debugging. However, it has some limitations, such as it cannot be used with SecureXL, it cannot filter the output by chain modules, and it cannot save the output to a file12.
The other commands are not as simple or efficient as the fw ctl zdebug + drop command. The command tail -f
$FWDIR/log/fw.log |grep drop in expert mode will only show the drops that are logged in the fw.log file, which may not include all the drops that occur in the kernel. The command cat /dev/fw1/log in expert mode will show the raw binary data of the kernel debug buffer, which is not human-readable and may contain irrelevant information. The command Smartlog will show the drops that are indexed and stored in the SmartEvent database, which may not be in real time and may depend on the log server performance12.
1: https://sc1.checkpoint.com/documents/R81.10/WebAdminGuides/EN/CP_R81.
10_AdvancedTechnicalReferenceGuide/html_frameset.htm 2: https://www.checkpoint.com/downloads
/training/DOC-Training-Data-Sheet-CCTE-R81.10-V1.0.pdf
NEW QUESTION # 74
What is the Security Gateway directory where an administrator can find vpn debug log files generated during Site-to-Site VPN troubleshooting?
Answer: D
Explanation:
The correct directory where an administrator can find vpn debug log files generated during Site-to-Site VPN troubleshooting is $FWDIR/log/. This directory contains the following files related to vpn debug:
vpnd.elg: This file contains the high-level VPN debug information, such as the VPN tunnel establishment, deletion, and negotiation messages. It can be enabled by using the vpn debug on command on the Security Gateway CLI.
legacy_ike.elg: This file contains the low-level IKE debug information for IKEv1, such as the IKE packets, encryption, decryption, and authentication. It can be enabled by using the vpn debug ikeon command on the Security Gateway CLI.
legacy_ikev2.xml: This file contains the low-level IKE debug information for IKEv2, such as the IKE packets, encryption, decryption, and authentication. It can be enabled by using the vpn debug ikev2on command on the Security Gateway CLI.
These files can be viewed by using the vpn debug view command on the Security Gateway CLI, or by using the IKEView tool on the Security Management Server GUI.
Reference:
vpn debug - Check Point Software
IKE Debug on R81 and above - Check Point CheckMates
(CCTE) - Check Point Software
NEW QUESTION # 75
What function receives the AD log event information?
Answer: B
Explanation:
The ADLOG function receives the AD log event information from the Domain Controllers. The ADLOG function is part of the Identity Awareness feature that enables the Security Gateway to identify users and machines in the network and enforce Access Control policy rules based on their identities. The ADLOG function uses the AD Query (ADQ) method to connect to the Active Directory Domain Controllers using WMI and subscribe to receive Security Event logs that are generated when users perform login. The ADLOG function then extracts the user and machine information that maps to an IP address from the event logs and sends it to the PEP function, which enforces the policy based on the identity information.
References:
* 1: Identity Awareness AD Query - Check Point Software
* 2: Identity Logging - Frequently Asked Questions - Check Point Software
3: Support, Support Requests, Training ... - Check Point Software
NEW QUESTION # 76
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