Nagios

generieren

Umfassende nagios Befehle und Workflows für die Systemverwaltung auf allen Plattformen.

Grundlegende Befehle

| | Command | Description | | | --- | --- | | | nagios --version | Show nagios version | | | | nagios --help | Display help information | | | | nagios init | Initialize nagios in current directory | | | | nagios status | Check current status | | | | nagios list | List available options | | | | nagios info | Display system information | | | | nagios config | Show configuration settings | | | | nagios update | Update to latest version | | | | nagios start | Start nagios service | | | | nagios stop | Stop nagios service | | | | nagios restart | Restart nagios service | | | | nagios reload | Reload configuration | |

Installation

Linux/Ubuntu

```bash

Package manager installation

sudo apt update sudo apt install nagios

Alternative installation

wget https://github.com/example/nagios/releases/latest/download/nagios-linux chmod +x nagios-linux sudo mv nagios-linux /usr/local/bin/nagios

Build from source

git clone https://github.com/example/nagios.git cd nagios make && sudo make install ```_

macOS

```bash

Homebrew installation

brew install nagios

MacPorts installation

sudo port install nagios

Manual installation

curl -L -o nagios https://github.com/example/nagios/releases/latest/download/nagios-macos chmod +x nagios sudo mv nagios /usr/local/bin/ ```_

Windows

```powershell

Chocolatey installation

choco install nagios

Scoop installation

scoop install nagios

Winget installation

winget install nagios

Manual installation

Download from https://github.com/example/nagios/releases

Extract and add to PATH

```_

Konfiguration

| | Command | Description | | | --- | --- | | | nagios config show | Display current configuration | | | | nagios config list | List all configuration options | | | | nagios config set <key> <value> | Set configuration value | | | | nagios config get <key> | Get configuration value | | | | nagios config unset <key> | Remove configuration value | | | | nagios config reset | Reset to default configuration | | | | nagios config validate | Validate configuration file | | | | nagios config export | Export configuration to file | |

Erweiterte Operationen

Dateioperationen

```bash

Create new file/resource

nagios create

Read file/resource

nagios read

Update existing file/resource

nagios update

Delete file/resource

nagios delete

Copy file/resource

nagios copy

Move file/resource

nagios move

List all files/resources

nagios list --all

Search for files/resources

nagios search ```_

Netzwerkaktivitäten

```bash

Connect to remote host

nagios connect :

Listen on specific port

nagios listen --port

Send data to target

nagios send --target --data ""

Receive data from source

nagios receive --source

Test connectivity

nagios ping

Scan network range

nagios scan

Monitor network traffic

nagios monitor --interface

Proxy connections

nagios proxy --listen --target : ```_

Prozessmanagement

```bash

Start background process

nagios start --daemon

Stop running process

nagios stop --force

Restart with new configuration

nagios restart --config

Check process status

nagios status --verbose

Monitor process performance

nagios monitor --metrics

Kill all processes

nagios killall

Show running processes

nagios ps

Manage process priority

nagios priority --pid --level ```_

Sicherheitsmerkmale

Authentication

```bash

nagios login --user

nagios login --api-key

nagios login --cert

Logout current session

nagios logout

Change password

nagios passwd

Generate new API key

nagios generate-key --name

List active sessions

nagios sessions

Revoke session

nagios revoke --session ```_

Verschlüsselung

```bash

Encrypt file

nagios encrypt --input --output

Decrypt file

nagios decrypt --input --output

Generate encryption key

nagios keygen --type --size

Sign file

nagios sign --input --key

Verify signature

nagios verify --input --signature

Hash file

nagios hash --algorithm --input

Generate certificate

nagios cert generate --name --days

Verify certificate

nagios cert verify --cert ```_

Überwachung und Protokollierung

Systemüberwachung

```bash

Monitor system resources

nagios monitor --system

Monitor specific process

nagios monitor --pid

Monitor network activity

nagios monitor --network

Monitor file changes

nagios monitor --files

Real-time monitoring

nagios monitor --real-time --interval 1

Generate monitoring report

nagios report --type monitoring --output

Set monitoring alerts

nagios alert --threshold --action

View monitoring history

nagios history --type monitoring ```_

Protokoll

```bash

View logs

nagios logs

View logs with filter

nagios logs --filter

Follow logs in real-time

nagios logs --follow

Set log level

nagios logs --level

Rotate logs

nagios logs --rotate

Export logs

nagios logs --export

Clear logs

nagios logs --clear

Archive logs

nagios logs --archive ```_

Fehlerbehebung

Gemeinsame Themen

*Issue: Befehl nicht gefunden ```bash

Check if nagios is installed

which nagios nagios --version

Check PATH variable

echo $PATH

Reinstall if necessary

sudo apt reinstall nagios

or

brew reinstall nagios ```_

Issue: Genehmigung verweigert ```bash

Run with elevated privileges

sudo nagios

Check file permissions

ls -la $(which nagios)

Fix permissions

chmod +x /usr/local/bin/nagios

Check ownership

sudo chown $USER:$USER /usr/local/bin/nagios ```_

*Issue: Konfigurationsfehler ```bash

Validate configuration

nagios config validate

Reset to default configuration

nagios config reset

Check configuration file location

nagios config show --file

Backup current configuration

nagios config export > backup.conf

Restore from backup

nagios config import backup.conf ```_

*Issue: Service nicht starten * ```bash

Check service status

nagios status --detailed

Check system logs

journalctl -u nagios

Start in debug mode

nagios start --debug

Check port availability

netstat -tulpn|grep

Kill conflicting processes

nagios killall --force ```_

Debug Befehle

| | Command | Description | | | --- | --- | | | nagios --debug | Enable debug output | | | | nagios --verbose | Enable verbose logging | | | | nagios --trace | Enable trace logging | | | | nagios test | Run built-in tests | | | | nagios doctor | Run system health check | | | | nagios diagnose | Generate diagnostic report | | | | nagios benchmark | Run performance benchmarks | | | | nagios validate | Validate installation and configuration | |

Leistungsoptimierung

Ressourcenmanagement

```bash

Set memory limit

nagios --max-memory 1G

Set CPU limit

nagios --max-cpu 2

Enable caching

nagios --cache-enabled

Set cache size

nagios --cache-size 100M

Clear cache

nagios cache clear

Show cache statistics

nagios cache stats

Optimize performance

nagios optimize --profile

Show performance metrics

nagios metrics ```_

Parallele Verarbeitung

```bash

Enable parallel processing

nagios --parallel

Set number of workers

nagios --workers 4

Process in batches

nagios --batch-size 100

Queue management

nagios queue add nagios queue process nagios queue status nagios queue clear ```_

Integration

Schrift

```bash

!/bin/bash

Example script using nagios

set -euo pipefail

Configuration

CONFIG_FILE="config.yaml" LOG_FILE="nagios.log"

Check if nagios is available

if ! command -v nagios &> /dev/null; then echo "Error: nagios is not installed" >&2 exit 1 fi

Function to log messages

log() \\{ echo "$(date '+%Y-%m-%d %H:%M:%S') - $1"|tee -a "$LOG_FILE" \\}

Main operation

main() \\{ log "Starting nagios operation"

if nagios --config "$CONFIG_FILE" run; then
    log "Operation completed successfully"
    exit 0
else
    log "Operation failed with exit code $?"
    exit 1
fi

\\}

Cleanup function

cleanup() \\{ log "Cleaning up" nagios cleanup \\}

Set trap for cleanup

trap cleanup EXIT

Run main function

main "$@" ```_

API Integration

```python

!/usr/bin/env python3

""" Python wrapper for the tool """

import subprocess import json import logging from pathlib import Path from typing import Dict, List, Optional

class ToolWrapper: def init(self, config_file: Optional[str] = None): self.config_file = config_file self.logger = logging.getLogger(name)

def run_command(self, args: List[str]) -> Dict:
    """Run command and return parsed output"""
    cmd = ['tool_name']

    if self.config_file:
        cmd.extend(['--config', self.config_file])

    cmd.extend(args)

    try:
        result = subprocess.run(
            cmd,
            capture_output=True,
            text=True,
            check=True
        )
        return \\\\{'stdout': result.stdout, 'stderr': result.stderr\\\\}
    except subprocess.CalledProcessError as e:
        self.logger.error(f"Command failed: \\\\{e\\\\}")
        raise

def status(self) -> Dict:
    """Get current status"""
    return self.run_command(['status'])

def start(self) -> Dict:
    """Start service"""
    return self.run_command(['start'])

def stop(self) -> Dict:
    """Stop service"""
    return self.run_command(['stop'])

Example usage

if name == "main": wrapper = ToolWrapper() status = wrapper.status() print(json.dumps(status, indent=2)) ```_

Umweltvariablen

| | Variable | Description | Default | | | --- | --- | --- | | | NAGIOS_CONFIG | Configuration file path | ~/.nagios/config.yaml | | | | NAGIOS_HOME | Home directory | ~/.nagios | | | | NAGIOS_LOG_LEVEL | Logging level | INFO | | | | NAGIOS_LOG_FILE | Log file path | ~/.nagios/logs/nagios.log | | | | NAGIOS_CACHE_DIR | Cache directory | ~/.nagios/cache | | | | NAGIOS_DATA_DIR | Data directory | ~/.nagios/data | | | | NAGIOS_TIMEOUT | Default timeout | 30s | | | | NAGIOS_MAX_WORKERS | Maximum workers | 4 | |

Datei konfigurieren

```yaml

~/.nagios/config.yaml

version: "1.0"

General settings

settings: debug: false verbose: false log_level: "INFO" log_file: "~/.nagios/logs/nagios.log" timeout: 30 max_workers: 4

Network configuration

network: host: "localhost" port: 8080 ssl: true timeout: 30 retries: 3

Security settings

security: auth_required: true api_key: "" encryption: "AES256" verify_ssl: true

Performance settings

performance: cache_enabled: true cache_size: "100M" cache_dir: "~/.nagios/cache" max_memory: "1G"

Monitoring settings

monitoring: enabled: true interval: 60 metrics_enabled: true alerts_enabled: true ```_

Beispiele

Basis-Workflow

```bash

1. Initialize nagios

nagios init

2. Configure basic settings

nagios config set host example.com nagios config set port 8080

3. Start service

nagios start

4. Check status

nagios status

5. Perform operations

nagios run --target example.com

6. View results

nagios results

7. Stop service

nagios stop ```_

Erweiterter Workflow

```bash

Comprehensive operation with monitoring

nagios run \ --config production.yaml \ --parallel \ --workers 8 \ --verbose \ --timeout 300 \ --output json \ --log-file operation.log

Monitor in real-time

nagios monitor --real-time --interval 5

Generate report

nagios report --type comprehensive --output report.html ```_

Automatisierungsbeispiel

```bash

!/bin/bash

Automated nagios workflow

Configuration

TARGETS_FILE="targets.txt" RESULTS_DIR="results/$(date +%Y-%m-%d)" CONFIG_FILE="automation.yaml"

Create results directory

mkdir -p "$RESULTS_DIR"

Process each target

while IFS= read -r target; do echo "Processing $target..."

nagios \
    --config "$CONFIG_FILE" \
    --output json \
    --output-file "$RESULTS_DIR/$\\\\{target\\\\}.json" \
    run "$target"

done < "$TARGETS_FILE"

Generate summary report

nagios report summary \ --input "$RESULTS_DIR/*.json" \ --output "$RESULTS_DIR/summary.html" ```_

Best Practices

Sicherheit

Prüfsummen beim Herunterladen von Binaries immer überprüfen
Verwenden Sie starke Authentifizierungsmethoden (API-Tasten, Zertifikate)
Regelmäßig auf die neueste Version aktualisieren
Prinzip der Mindestberechtigung
Audit-Logging aktivieren für Compliance
Verschlüsselte Verbindungen verwenden, wenn möglich
Alle Eingänge und Konfigurationen validieren
Implementierung richtiger Zugriffskontrollen

Leistung

Verwenden Sie geeignete Ressourcengrenzen für Ihre Umwelt
Systemleistung regelmäßig überwachen
Optimieren Sie die Konfiguration für Ihren Anwendungsfall
Parallele Verarbeitung verwenden, wenn nützlich
Durchführung richtiger Cache-Strategien
Regelmäßige Wartung und Reinigung
Profilleistung Engpässe
Verwenden Sie effiziente Algorithmen und Datenstrukturen

Betrieb

umfassende Dokumentation
Umsetzung richtiger Backup-Strategien
Verwenden Sie die Versionssteuerung für Konfigurationen
Monitor und Alarm auf kritischen Metriken
Implementierung der richtigen Fehlerbehandlung
Automatisierung für repetitive Aufgaben verwenden
Regelmäßige Sicherheitsaudits und Updates
Plan zur Katastrophenrückgewinnung

Entwicklung

Befolgen Sie Kodierungsstandards und Konventionen
Vollständige Tests schreiben
Verwenden Sie die kontinuierliche Integration / Bereitstellung
Durchführung einer ordnungsgemäßen Protokollierung und Überwachung
Dokumente APIs und Schnittstellen
Verwenden Sie die Versionskontrolle effektiv
Prüfcode regelmäßig
Rückwärtskompatibilität sichern

Ressourcen

Offizielle Dokumentation

offizielle Website
[Dokumentation](LINK_18 -%20[API%20Reference](LINK_18 -%20(LINK_18)
Konfigurationsreferenz

Gemeinschaftsmittel

GitHub Repository
Issue Tracker
[Gemeinschaftsforum](LINK_18 -%20(LINK_18)
[Reddit Community](_LINK_18___ -%20Stack%20Overflow

Lernressourcen

(LINK_18)
(__LINK_18___)
(LINK_18)
Video-Tutorials
(LINK_18)
Zertifizierungsprogramm

In den Warenkorb

Git - Komplementärfunktionalität
Docker - Alternative Lösung
Kubernetes - Integrationspartner

--

Letzte Aktualisierung: 2025-07-06|Bearbeiten auf GitHub

Nagios

Grundlegende Befehle

Installation

Linux/Ubuntu

Package manager installation

Alternative installation

Build from source

macOS

Homebrew installation

MacPorts installation

Manual installation

Windows

Chocolatey installation

Scoop installation

Winget installation

Manual installation

Download from https://github.com/example/nagios/releases

Extract and add to PATH

Konfiguration

Erweiterte Operationen

Dateioperationen

Create new file/resource

Read file/resource

Update existing file/resource

Delete file/resource

Copy file/resource

Move file/resource

List all files/resources

Search for files/resources

Netzwerkaktivitäten

Connect to remote host

Listen on specific port

Send data to target

Receive data from source

Test connectivity

Scan network range

Monitor network traffic

Proxy connections

Prozessmanagement

Start background process

Stop running process

Restart with new configuration

Check process status

Monitor process performance

Kill all processes

Show running processes

Manage process priority

Sicherheitsmerkmale

Authentication

Login with username/password

Login with API key

Login with certificate

Logout current session

Change password

Generate new API key

List active sessions

Revoke session

Verschlüsselung

Encrypt file

Decrypt file

Generate encryption key

Sign file

Verify signature

Hash file

Generate certificate

Verify certificate

Überwachung und Protokollierung

Systemüberwachung

Monitor system resources

Monitor specific process

Monitor network activity

Monitor file changes

Real-time monitoring

Generate monitoring report

Set monitoring alerts

View monitoring history

Protokoll

View logs

View logs with filter

Follow logs in real-time