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Monitoring: Continuous Systems Monitoring to Detect Faults and Threats in Real Time - Rtek

A complete guide to IT systems monitoring. Learn about continuous monitoring, real-time alerts, SIEM, and how to spot problems before they turn into business damage.

Rtek January 28, 2025 6 min read
monitoring SIEM alerts cybersecurity IT management

Monitoring: Continuous Systems Monitoring to Detect Faults and Threats in Real Time

Systems monitoring is one of the most important parts of managed IT. It lets you spot problems before they turn into business damage, and respond quickly to threats. In this article we explain what systems monitoring is, why it matters, and how to implement it the right way.

What Is Monitoring (Systems Monitoring)?

Systems monitoring is the process of continuously tracking the state of your systems, detecting problems and threats, and alerting on important events. It covers computers, servers, networks, and applications.

Why Systems Monitoring Matters

Early detection of problems:

  • Detect faults before they affect employees
  • Detect performance problems before they become critical
  • Detect security problems before they cause damage

Fast response:

  • Immediate alerts about problems
  • The ability to respond quickly
  • Reduced downtime

Proactive management:

  • Preventing problems instead of only fixing them
  • Preventive maintenance
  • Planning improvements

Oversight and the full picture:

  • A complete view of the state of your IT
  • Understanding what’s happening at any moment
  • The ability to make informed decisions

What Should You Monitor?

1. Computers and Servers

Performance:

  • CPU usage
  • Memory (RAM) usage
  • Disk usage
  • Temperature

Health:

  • Operating system status
  • Critical services
  • Security updates
  • Errors in the logs

2. Networks

Performance:

  • Bandwidth
  • Latency
  • Packet loss
  • Network utilization

Health:

  • Network equipment status
  • Active connections
  • Network errors
  • Suspicious activity

3. Applications

Availability:

  • Is the application working?
  • Response time
  • Error rate
  • Availability to users

Performance:

  • Load time
  • Processing time
  • Resource usage
  • Database performance

4. Security

Security events:

  • Intrusion attempts
  • Suspicious activity
  • Attacks
  • Security breaches

Compliance:

  • Security updates
  • Security settings
  • Permissions
  • Logs

Types of Monitoring

1. Passive Monitoring

Passive monitoring collects information but doesn’t take action:

  • Collecting data on the state of systems
  • Storing logs
  • Generating reports

Advantages:

  • Doesn’t affect system performance
  • Comprehensive data collection
  • Full history

Disadvantages:

  • Doesn’t respond to problems in real time
  • Requires manual analysis
  • Doesn’t prevent problems

2. Active Monitoring

Active monitoring actively tests the systems:

  • Periodic health checks
  • Availability checks
  • Performance checks

Advantages:

  • Fast detection of problems
  • Immediate response
  • Continuous monitoring

Disadvantages:

  • Can affect system performance
  • Requires resources
  • Can generate additional traffic

3. Real-time Monitoring

Real-time monitoring provides immediate information:

  • Continuous monitoring
  • Immediate alerts
  • Fast response

Advantages:

  • Immediate detection of problems
  • Fast response
  • Continuous monitoring

Disadvantages:

  • Requires resources
  • Can generate a lot of alerts
  • Requires ongoing maintenance

Alerts

Alerts are a critical part of systems monitoring. They notify you about important problems that need attention.

When Should an Alert Fire?

Critical problems:

  • A server is unavailable
  • A fault in a critical system
  • A security attack

Important problems:

  • Poor performance
  • High resource usage
  • Suspicious activity

Trends:

  • Negative performance trends
  • A rise in errors
  • Changes in patterns

How to Configure Alerts the Right Way

Not too many:

  • Too many alerts cause alert fatigue
  • People start ignoring them
  • Important alerts go unhandled

Not too few:

  • Too few alerts mean problems go undetected
  • Late response to problems
  • Business damage

Quality over quantity:

  • Accurate, actionable alerts
  • Alerts with context
  • Alerts with priorities

SIEM (Security Information and Event Management)

SIEM is a system that collects, analyzes, and reports on security events from all your systems.

SIEM Features

Data collection:

  • Logs from every system
  • Security events
  • Network data

Analysis:

  • Pattern detection
  • Detecting suspicious activity
  • Correlating events

Reporting:

  • Periodic reports
  • Alerts about events
  • An overall status picture

Investigation:

  • The ability to investigate security events
  • The ability to trace activity
  • The ability to reconstruct events

Why SIEM Matters

Detecting advanced threats:

  • Detecting sophisticated attacks
  • Detecting suspicious patterns
  • Correlating different events

Fast response:

  • Immediate alerts about events
  • The ability to respond quickly
  • Reducing damage

Regulatory compliance:

  • Documentation of every security event
  • Reports for audit purposes
  • Meeting regulatory requirements

Dashboards and Reports

Dashboards and reports give you a complete view of the state of your systems:

Dashboards

Dashboards provide a visual display of the state of your systems:

  • System status in real time
  • Performance metrics
  • Recent events

Advantages:

  • A quick view of the current state
  • Immediate detection of problems
  • More efficient management

Reports

Reports provide detailed analysis:

Periodic reports:

  • Daily, weekly, and monthly reports
  • Trend analysis
  • Period-over-period comparisons

Event reports:

  • Reports on security events
  • Reports on faults
  • Reports on performance

Oversight reports:

  • Reports for management
  • Reports for regulatory purposes
  • Reports for improvement

How to Implement Monitoring the Right Way

Implementation Steps

1. Needs assessment:

  • Understand what needs to be monitored
  • Understand what’s critical
  • Understand the requirements

2. Choosing tools:

  • Choose suitable monitoring tools
  • Choose tools tailored to your needs
  • Choose tools that fit your budget

3. Configuration:

  • Define what to monitor
  • Define alerts
  • Define reports

4. Deployment:

  • Install the tools
  • Configure the monitoring
  • Check that everything works

5. Ongoing management:

  • Monitor the monitoring
  • Update alerts
  • Review reports

A Managed Solution with Rtek

At Rtek, we provide a fully managed monitoring solution as part of our managed IT package and our servers and networks services:

What’s Included?

Continuous monitoring:

  • Monitoring of all systems
  • Performance and security monitoring
  • Continuous 24/7 monitoring

Alerts:

  • Immediate alerts about problems
  • Alerts about security events
  • Prioritized alerts

Reports:

  • Periodic reports
  • Event reports
  • Management reports

Support:

  • 24/7 professional support
  • Fast response to problems
  • Analysis and investigation of events

Why a Managed Solution?

Systems monitoring requires technical expertise and ongoing management. A managed solution ensures:

  • Professional, efficient monitoring
  • Fast response to problems
  • Ongoing, organized management
  • Savings in time and budget

Summary

Systems monitoring is critical to managed IT. It lets you spot problems before they turn into business damage, respond quickly to threats, and manage your IT proactively.

Combining continuous monitoring, smart alerts, and SIEM provides comprehensive protection and efficient management of your business IT.

If you want to run your IT with a professional, managed monitoring solution, we at Rtek are here to help. Contact us for a tailored quote.