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What are the most important system monitoring metrics and indicators to detect potential threats?

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System monitoring is a vital practice for any IT professional who wants to ensure the performance, availability, and security of their network and systems. However, not all metrics and indicators are equally important or relevant for detecting potential threats. In this article, we will discuss some of the most important system monitoring metrics and indicators to detect potential threats, and how to use them effectively.

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Venu Gopal

SAP Integration Alchemist | SAP PI/PO/CPI Visionary ??| Bridging Systems for Business Harmony | Top Voice in Enterprise…
Asha Kanta Sharma

Manager - Finance & Accounts @ Opendoors Fintech | Financial Accounting
Aaron F.

Proactively and reactively, solving and resolving security issues.

1 CPU Usage

CPU usage is the percentage of time that the processor is executing tasks. High CPU usage can indicate a heavy workload, a malfunctioning application, or a malicious activity. Monitoring CPU usage can help you identify the source of the problem, optimize the system resources, and prevent performance degradation or system crashes. You can use tools like top or Task Manager to view the CPU usage of individual processes and threads, and compare them with the baseline or the expected values.

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Asha Kanta Sharma

Manager - Finance & Accounts @ Opendoors Fintech | Financial Accounting
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System monitoring is crucial for detecting potential threats and ensuring IT security. Key metrics include network traffic, resource usage, user activity, file integrity monitoring, security event logs, anomaly detection, endpoint security metrics, user behavior analytics, patch and vulnerability management, authentication logs, privilege escalation attempts, DNS query logs, incident response metrics, geographical anomalies, threat intelligence feeds, data loss prevention metrics, and security dashboard metrics.

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2 Memory Usage

Memory usage is the amount of RAM that is allocated to the processes and applications running on the system. Low memory availability can lead to swapping, paging, or out-of-memory errors, which can affect the performance and stability of the system. Monitoring memory usage can help you detect memory leaks, misconfigured applications, or memory-intensive attacks. You can use tools like free or Performance Monitor to view the memory usage of the system and the processes, and check for any anomalies or deviations from the normal range.

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3 Disk Usage

Disk usage is the amount of disk space that is occupied by the files and directories on the system. High disk usage can result in low disk space, fragmentation, or corruption, which can impair the functionality and reliability of the system. Monitoring disk usage can help you manage the disk capacity, optimize the disk performance, and prevent data loss or damage. You can use tools like df or Disk Management to view the disk usage of the partitions and volumes, and tools like du or TreeSize to view the disk usage of the files and folders.

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4 Network Usage

Network usage is the amount of data that is transmitted and received by the system over the network. High network usage can indicate a high demand, a network congestion, or a network attack. Monitoring network usage can help you troubleshoot the network problems, optimize the network bandwidth, and protect the network security. You can use tools like ifconfig or Network and Sharing Center to view the network usage of the interfaces and adapters, and tools like tcpdump or Wireshark to view the network usage of the packets and protocols.

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5 Log Files

Log files are the records of the events and activities that occur on the system and the applications. Log files can provide valuable information about the system status, the application behavior, and the user actions. Monitoring log files can help you audit the system activities, diagnose the system errors, and detect the system anomalies. You can use tools like tail or Event Viewer to view the log files of the system and the applications, and tools like grep or Log Parser to filter and analyze the log files.

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6 Alerts and Notifications

Alerts and notifications are the messages that inform you about the critical or abnormal situations that require your attention or action. Alerts and notifications can help you respond to the system issues, the application errors, or the security incidents in a timely and effective manner. Monitoring alerts and notifications can help you prioritize the system tasks, resolve the system problems, and mitigate the system risks. You can use tools like mail or Notification Center to receive and manage the alerts and notifications, and tools like cron or Task Scheduler to automate and schedule the alerts and notifications.

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Aaron F.

Proactively and reactively, solving and resolving security issues.
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Untracked and Unauthorised changes. That is the Ideal world. In reality, knowing the baseline for a system can provide a suitable starting point. Having the right tools in place to identify Applications starts, stops, and restarts. Monitoring the change of configuration or applications settings. Identifying changes made to applications. Verification of integrity vs expected values or minimum values is imperative. Within the environment, higher than usual WR operation, Network traffic, or higher than normal requests to an API.

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7 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

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Venu Gopal

SAP Integration Alchemist | SAP PI/PO/CPI Visionary ??| Bridging Systems for Business Harmony | Top Voice in Enterprise Resource Planning and Information Technology on LinkedIn??
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Critical system monitoring metrics for threat detection include unusual network activity, abnormal login patterns, CPU and memory usage anomalies, and unexpected file modifications. Monitor for spikes in data transfer and unusual process behavior. Track system logs for security events, and employ intrusion detection systems to identify suspicious activities. Keep an eye on user account changes and privilege escalations. Regularly review firewall logs for unauthorized access attempts. By vigilantly observing these metrics, organizations can swiftly detect and respond to potential threats, fortifying their cybersecurity posture and minimizing risks.

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What are the most important system monitoring metrics and indicators to detect potential threats?

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1 CPU Usage

2 Memory Usage

3 Disk Usage

4 Network Usage

5 Log Files

6 Alerts and Notifications

7 Here’s what else to consider

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What are the most important system monitoring metrics and indicators to detect potential threats?

1

2

3

4

5

6

7

1 CPU Usage

2 Memory Usage

3 Disk Usage

4 Network Usage

5 Log Files

6 Alerts and Notifications

7 Here’s what else to consider

Information Technology

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