Monitoring

CLI & GUI Workflows for System Visibility

📜 Syslog (Linux CLI)

CommandPurpose
cat /var/log/syslogView system log entries
tail -f /var/log/syslogLive stream log updates
grep "error" /var/log/syslogSearch for error entries
logger "Test log entry"Write custom log message
systemctl status rsyslogCheck syslog service status

📡 SNMP (Linux CLI)

CommandPurpose
snmpwalk -v2c -c public localhostWalk SNMP tree for device info
snmpget -v2c -c public localhost OIDQuery specific SNMP value
snmptrapdReceive SNMP traps
snmpconf -g basic_setupGenerate SNMP config interactively
systemctl status snmpdCheck SNMP daemon status

🧭 Nagios (Web GUI)

ActionPurpose
Access Nagios Web InterfaceView host and service status
Configure hosts/servicesDefine monitoring targets
Set up alertsTrigger notifications on failure
Use pluginsExtend monitoring capabilities
Check performance graphsVisualize resource usage

🪟 Windows Event Viewer

Tool/ActionPurpose
Event ViewerAccess system, application, and security logs
Filter Current LogSearch by event ID or source
Create Custom ViewSave filtered log views
Export LogSave logs to file for analysis
Task Scheduler IntegrationTrigger actions based on events