comparison guide self-hosted · April 13, 2026 · 16 min read

Zabbix vs LibreNMS vs Netdata: Best Self-Hosted Network Monitoring 2026

Compare Zabbix, LibreNMS, and Netdata for self-hosted network monitoring. Complete Docker setup guides, SNMP configuration, feature comparison, and alerting strategies for 2026.

OpenSwap Guide Team Editorial Team

Why Self-Host Your Network Monitoring?

Commercial network monitoring platforms charge per-device licensing fees, cap data retention, and ship your infrastructure telemetry to third-party clouds. Self-hosting your monitoring stack gives you full control over every metric, alert, and dashboard:

Unlimited device monitoring — track hundreds of routers, switches, servers, and IoT endpoints without per-node licensing costs
Complete data sovereignty — all SNMP data, flow records, and performance metrics remain on your own hardware
Deep internal visibility — monitor private subnets, management VLANs, and internal services that cloud monitors cannot reach
Custom alerting pipelines — integrate with your existing notification infrastructure without vendor lock-in
Long-term retention — keep years of historical data for capacity planning and compliance audits without paying for premium storage tiers
No egress fees — network flow data (NetFlow, sFlow, IPFIX) generates significant bandwidth — keeping it local saves money

For network administrators, homelab operators, and MSPs, a self-hosted monitoring solution is essential infrastructure. This guide compares the three leading open-source options and walks you through production-ready deployments.

Feature Comparison: Zabbix vs LibreNMS vs Netdata

Feature	Zabbix	LibreNMS	Netdata
License	GPL-2.0	GPL-3.0	GPL-3.0
Primary Focus	Enterprise monitoring (any metric)	Network device monitoring (SNMP-first)	Real-time system performance
Monitoring Protocol	Agent, SNMP, IPMI, JMX, HTTP, custom	SNMP, WMI, SSH, API, BGP, OSPF	Agent (collectors), SNMP plugin
Auto-Discovery	✅ Network discovery rules	✅ Excellent auto-discovery	❌ Manual node registration
SNMP Support	✅ v1/v2c/v3	✅ v1/v2c/v3 (primary)	✅ via go.d plugin
Network Topology Maps	✅ Manual + auto-generated	✅ Automatic LLDP/CDP maps	❌
Flow Collection	❌ (external tools needed)	✅ NetFlow, sFlow, IPFIX, NSEL	❌
Real-Time Dashboards	Configurable widgets	grafana integration	⚡ Built-in, sub-second
Alerting Engine	Powerful trigger expressions	Alert templates + macros	Alert config files
Notification Channels	40+ (email, webhook, Slack, Telegram, etc.)	20+ (email, Slack, Discord, Matrix, webhooks)	100+ (via alarm_notify.sh and integrations)
docker Support	✅ Official images	✅ Official image	✅ Official image
Scalability	Proxies for distributed monitoring	Horizontal via polling workers	Parent-child streaming
BGP Monitoring	Manual OID polling	✅ Native BGP session tracking	❌
Wireless Controller Support	Limited	✅ UniFi, Cisco WLC, Aruba	❌
Resource Usage	Moderate (MySQL + PHP backend)	Moderate (MySQL/MariaDB + RRDtool)	Low (optimized C daemon)
Learning Curve	Steep	Moderate	Low
Best For	Enterprise IT, mixed environments	Network ops teams, ISPs, MSPs	DevOps, real-time system visibility

Which One Should You Choose?

Zabbix is the Swiss Army knife — monitor servers, networks, applications, cloud resources, and custom metrics from a single platform. It excels in heterogeneous environments where you need one tool for everything.
LibreNMS is the network specialist — it auto-discovers devices, builds topology maps from LLDP/CDP, tracks BGP sessions, and collects network flows. If your primary focus is network infrastructure, this is your best choice.
Netdata is the real-time performance engine — it provides second-by-second visibility into CPU, memory, disk I/O, network throughput, and application metrics with zero configuration. It’s ideal for troubleshooting and live dashboards.

Many organizations run Netdata + LibreNMS (or Netdata + Zabbix) together — Netdata for real-time per-host visibility and LibreNMS/Zabbix for network-wide monitoring, alerting, and historical trending.

Zabbix: Enterprise-Grade Monitoring

Zabbix has been the gold standard for open-source monitoring since 2001. Its template-based architecture lets you monitor virtually any device or service.

Architecture

Zabbix uses a server-proxy-agent model:

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┌─────────────┐     ┌──────────────┐     ┌─────────────┐
│  Zabbix     │────▶│   Database    │     │  Web UI     │
│  Server     │     │ (MySQL/PG)   │◀────│  (PHP)      │
└──────┬──────┘     └──────────────┘     └─────────────┘
       │
       ├──▶ Zabbix Proxy (optional, remote sites)
       │      ├──▶ Agent (Linux/Windows)
       │      ├──▶ SNMP device (router, switch)
       │      └──▶ IPMI/BMC (hardware sensors)
       │
       ├──▶ Agent (local server)
       ├──▶ SNMP device (network equipment)
       └──▶ JMX application (Java services)

Docker Compose Deployment

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mkdir -p ~/zabbix/{mysql,data}
cd ~/zabbix

Create docker-compose.yml:

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services:
  zabbix-mysql:
    image: mysql:8.4
    container_name: zabbix-mysql
    restart: unless-stopped
    environment:
      MYSQL_ROOT_PASSWORD: zabbix_root_pass
      MYSQL_DATABASE: zabbix
      MYSQL_USER: zabbix
      MYSQL_PASSWORD: zabbix_db_pass
      MYSQL_CHARSET: utf8mb4
    volumes:
      - ./mysql:/var/lib/mysql
    command: >
      --character-set-server=utf8mb4
      --collation-server=utf8mb4_bin
      --default-authentication-plugin=mysql_native_password
    healthcheck:
      test: ["CMD", "mysqladmin", "ping", "-h", "localhost"]
      interval: 10s
      timeout: 5s
      retries: 5

  zabbix-server:
    image: zabbix/zabbix-server-mysql:alpine-7.2-latest
    container_name: zabbix-server
    restart: unless-stopped
    depends_on:
      zabbix-mysql:
        condition: service_healthy
    ports:
      - "10051:10051"
    environment:
      DB_SERVER_HOST: zabbix-mysql
      MYSQL_DATABASE: zabbix
      MYSQL_USER: zabbix
      MYSQL_PASSWORD: zabbix_db_pass
      MYSQL_ROOT_PASSWORD: zabbix_root_pass
    volumes:
      - ./data:/var/lib/zabbix
      - /etc/localtime:/etc/localtime:ro

  zabbix-web:
    image: zabbix/zabbix-web-nginx-mysql:alpine-7.2-latest
    container_name: zabbix-web
    restart: unless-stopped
    depends_on:
      - zabbix-mysql
      - zabbix-server
    ports:
      - "8080:8080"
    environment:
      DB_SERVER_HOST: zabbix-mysql
      MYSQL_DATABASE: zabbix
      MYSQL_USER: zabbix
      MYSQL_PASSWORD: zabbix_db_pass
      MYSQL_ROOT_PASSWORD: zabbix_root_pass
      ZBX_SERVER_HOST: zabbix-server
      PHP_TZ: UTC
    volumes:
      - /etc/localtime:/etc/localtime:ro

  zabbix-agent:
    image: zabbix/zabbix-agent2:alpine-7.2-latest
    container_name: zabbix-agent
    restart: unless-stopped
    privileged: true
    pid: host
    network_mode: host
    environment:
      ZBX_SERVER_HOST: "127.0.0.1"
      ZBX_HOSTNAME: "docker-host"

Start the stack:

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docker compose up -d

Access the web interface at http://your-server:8080. Default credentials are Admin / zabbix.

Adding SNMP Network Devices

Go to Configuration → Hosts → Create host
Set host name, add to a group (e.g., “Network Devices”)
Add an SNMP interface with the device IP and port 161
Link the appropriate template:
- Cisco IOS SNMP — for Cisco routers and switches
- Generic SNMP — for generic SNMP-capable devices
- MikroTik SNMP — for RouterOS devices
- Ubiquiti AirMAX SNMP — for UniFi/EdgeMAX devices

For bulk SNMP v3 configuration, create a host macro at the template level:

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{$SNMP_COMMUNITY} = public
{$SNMP_USERNAME} = monitor_user
{$SNMP_SECURITY_NAME} = monitor_user
{$SNMP_AUTH_PROTOCOL} = SHA
{$SNMP_AUTH_PASSPHRASE} = your_auth_password
{$SNMP_PRIV_PROTOCOL} = AES
{$SNMP_PRIV_PASSPHRASE} = your_priv_password

Configuring Alert Triggers

Zabbix uses expression-based triggers. Here are practical examples:

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# Router CPU over 80% for 5 minutes
{Template Net Cisco IOS SNMPv2:system.cpu.util[5min].avg(5m)}>80

# Interface utilization over 90%
{Template Net Cisco IOS SNMPv2:net.if.in[ifHCInOctets["{#IFNAME}"],bps].avg(3m)}>90000000

# Device unreachable (ICMP ping failure)
{Template Net ICMP Ping:icmpping.count(#3,0)}>2

# BGP session down
{Template Net Cisco IOS SNMPv2:ciscoBgPeerState["{#BGPPEER}"].last()}<>6

Set up notification actions under Configuration → Actions to route alerts to email, Slack, Telegram, or webhook endpoints.

LibreNMS: Network-First Monitoring

LibreNMS was built specifically for network device monitoring. Its auto-discovery, automatic topology mapping, and built-in flow collection make it the go-to choice for network operations teams.

Docker Compose Deployment

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mkdir -p ~/librenms/{config,rrd,logs,db}
cd ~/librenms

Create docker-compose.yml:

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services:
  librenms:
    image: librenms/librenms:latest
    container_name: librenms
    restart: unless-stopped
    ports:
      - "8443:443"
      - "8080:80"
      - "514:514/udp"
      - "162:162/udp"
    environment:
      - TZ=UTC
      - DB_HOST=librenms-db
      - DB_NAME=librenms
      - DB_USER=librenms
      - DB_PASSWORD=librenms_secret
      - DB_TIMEOUT=30
      - REDIS_HOST=librenms-redis
      - LIBRENMS_SNMP_COMMUNITY=public
      - PUID=1000
      - PGID=1000
      - POLLERS=16
      - RRDCACHED_ADDRESS=librenms-rrdcached:42217
    volumes:
      - ./config:/data/config
      - ./rrd:/data/rrd
      - ./logs:/data/logs
      - ./librenms:/opt/librenms
    depends_on:
      librenms-db:
        condition: service_healthy
      librenms-redis:
        condition: service_started
    networks:
      monitoring:
        ipv4_address: 172.20.0.10

  librenms-db:
    image: mariadb:10.11
    container_name: librenms-db
    restart: unless-stopped
    environment:
      - MYSQL_ROOT_PASSWORD=root_secret
      - MYSQL_DATABASE=librenms
      - MYSQL_USER=librenms
      - MYSQL_PASSWORD=librenms_secret
      - MYSQL_CHARSET=utf8mb4
    volumes:
      - ./db:/var/lib/mysql
    command: >
      --innodb-file-per-table=1
      --lower-case-table-names=0
      --max-connections=512
      --wait=60
    healthcheck:
      test: ["CMD", "mysqladmin", "ping", "-h", "localhost"]
      interval: 10s
      timeout: 5s
      retries: 5
    networks:
      monitoring:
        ipv4_address: 172.20.0.11

  librenms-redis:
    image: redis:7-alpine
    container_name: librenms-redis
    restart: unless-stopped
    networks:
      monitoring:
        ipv4_address: 172.20.0.12

  librenms-rrdcached:
    image: crazymax/rrdcached:latest
    container_name: librenms-rrdcached
    restart: unless-stopped
    environment:
      - LOG_LEVEL=LOG_INFO
      - WRITE_JOURNAL=true
      - WRITE_TIMEOUT=1800
      - WRITE_JDELAY=1800
      - FLUSH_DEAD_DATA_INTERVAL=3600
    volumes:
      - ./rrd:/data/db
      - ./rrd/journal:/data/journal
    networks:
      monitoring:
        ipv4_address: 172.20.0.13

  librenms-smtp:
    image: mwader/postfix-relay
    container_name: librenms-smtp
    restart: unless-stopped
    environment:
      - POSTFIX_myhostname=librenms.local
    networks:
      monitoring:
        ipv4_address: 172.20.0.14

networks:
  monitoring:
    driver: bridge
    ipam:
      config:
        - subnet: 172.20.0.0/24

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docker compose up -d

Access at http://your-server:8080. Default credentials are librenms / password — change this immediately.

SNMP Configuration for LibreNMS

Configure SNMP on your network devices. Here are examples for common platforms:

Cisco IOS/IOS-XE:

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snmp-server community public RO
snmp-server host <librenms-ip> version 2c public
snmp-server enable traps
snmp-server ifindex persist

Cisco IOS-XE with SNMP v3:

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snmp-server view READONLY iso included
snmp-server group MONITOR v3 auth read READONLY
snmp-server user monitor_user MONITOR v3 auth sha monitor_auth123 priv aes 128 monitor_priv123
snmp-server host <librenms-ip> version 3 auth monitor_user

MikroTik RouterOS:

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/snmp community
add address=172.20.0.10/32 name=librenms security=authorized
/snmp
set enabled=yes contact="admin@example.com" location="Data Center Rack A1"

Linux (net-snmp):

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sudo apt install snmpd

Edit /etc/snmp/snmpd.conf:

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rocommunity public 172.20.0.10
sysLocation "Server Room"
sysContact "admin@example.com"
extend .1.3.6.1.4.1.2021.51 mem_used /bin/cat /proc/meminfo

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sudo systemctl restart snmpd

Auto-Discovery Setup

LibreNMS can automatically discover devices on your network:

Go to Global Settings → Discovery
Add discovery networks (e.g., 10.0.0.0/16, 192.168.1.0/24)
Configure SNMP communities for auto-discovery
Set up OS detection and port association rules

Add a cron entry for periodic discovery:

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docker exec librenms /opt/librenms/discovery.php -h new
docker exec librenms /opt/librenms/poller.php -h new

Network Flow Collection

Enable NetFlow/sFlow/IPFIX collection for traffic analysis:

On Cisco switch:

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flow record LIBRENMS
  match ipv4 source address
  match ipv4 destination address
  match transport source-port
  match transport destination-port
  collect counter bytes
  collect counter packets
!
flow exporter LIBRENMS_EXPORT
  destination <librenms-ip>
  transport udp 9995
!
interface GigabitEthernet0/1
  ip flow monitor LIBRENMS_INPUT input
  ip flow monitor LIBRENMS_OUTPUT output

Then in LibreNMS, go to Ports → Flow Settings and configure the listening port (9995 by default). The Docker compose already exposes the UDP port for flow ingestion.

Alert Configuration

LibreNMS uses alert templates with macro-based rules:

Go to Alerts → Alert Rules → Add Rule
Configure conditions:

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# Device down (no response to ICMP)
devices.status = 0

# Port utilization over 85%
ports.ifInErrors_delta > 0 || ports.ifOutErrors_delta > 0

# BGP session state changed
bgpPeers.bgpPeerState != 6

# Disk usage over 90%
storage.storage_perc > 90

# Wireless client count dropped below threshold
devices.wireless_clients < 5

Set up alert transports under Alerts → Alert Transports:
- Email — via the SMTP relay container
- Slack — incoming webhook URL
- Discord — webhook URL
- Matrix — via HTTP transport
- PagerDuty — for critical alerts

Netdata: Real-Time System Performance

Netdata provides second-by-second metrics with a beautiful real-time dashboard. It’s designed for immediate visibility — not historical trending.

Docker Compose Deployment

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mkdir -p ~/netdata/{config,data,cache}
cd ~/netdata

Create docker-compose.yml:

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services:
  netdata:
    image: netdata/netdata:stable
    container_name: netdata
    restart: unless-stopped
    hostname: monitoring-server
    cap_add:
      - SYS_PTRACE
      - SYS_ADMIN
    security_opt:
      - apparmor:unconfined
    ports:
      - "19999:19999"
    volumes:
      - ./config:/etc/netdata
      - ./data:/var/lib/netdata
      - ./cache:/var/cache/netdata
      - /etc/passwd:/host/etc/passwd:ro
      - /etc/group:/host/etc/group:ro
      - /proc:/host/proc:ro
      - /sys:/host/sys:ro
      - /etc/os-release:/host/etc/os-release:ro
      - /var/log:/host/var/log:ro
      - /var/run/docker.sock:/var/run/docker.sock:ro
    environment:
      - NETDATA_CLAIM_TOKEN=your-claim-token
      - NETDATA_CLAIM_URL=https://app.netdata.cloud
      - DOCKER_HOST=unix:///var/run/docker.sock
      - TZ=UTC

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docker compose up -d

Access the dashboard at http://your-server:19999. Netdata works out of the box with zero configuration — it auto-detects running services, containers, and hardware.

Monitoring Network Devices via SNMP

Netdata can poll SNMP devices using its go.d.plugin. Enable SNMP collection:

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docker exec netdata cd /etc/netdata && \
  cp go.d/snmp.conf edit-config go.d/snmp.conf

Create /etc/netdata/go.d/snmp.conf:

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jobs:
  - name: core_switch
    update_every: 10
    priority: 1
    timeout: 2
    retries: 3
    host: 10.0.1.1
    community: public
    options:
      - check_response: true
    charts:
      - id: switch_port_traffic
        title: Core Switch Port Traffic
        units: kb/s
        family: traffic
        context: snmp.port_traffic
        chart_type: area
        priority: 1
        multiply: 8
        divide: 1000
    response_mappings:
      - match: "IF-MIB::ifInOctets\\.(\\d+)"
        variable: "ifInOctets"
        label: "port-{1}-in"
        dimension: "in"
        algorithm: "incremental"

Restart to apply:

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docker exec netdata killall -HUP netdata

Parent-Child Streaming for Multiple Nodes

For monitoring multiple servers, use Netdata’s parent-child architecture:

Parent node (central collector):

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services:
  netdata-parent:
    image: netdata/netdata:stable
    container_name: netdata-parent
    restart: unless-stopped
    hostname: netdata-parent
    ports:
      - "19999:19999"
      - "19998:19998"
    volumes:
      - ./parent-config:/etc/netdata
      - ./parent-data:/var/lib/netdata
      - ./parent-cache:/var/cache/netdata

Child node (on each monitored server):

Create /etc/netdata/stream.conf:

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[stream]
    enabled = yes
    destination = parent-server-ip:19998
    api key = YOUR_API_KEY

On the parent, create /etc/netdata/stream.conf:

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[YOUR_API_KEY]
    enabled = yes
    default history = 3600
    default memory mode = dbengine
    health enabled by default = auto

Configuring Alerts

Netdata alerts are defined in YAML under /etc/netdata/health.d/. Create a custom alert file:

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docker exec netdata edit-config health.d/cpu.conf

Example custom alert for network interface errors:

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alert: network_interface_errors
   on: net.errors
lookup: max -1s
  every: 10s
   warn: $this > (($status >= $WARNING)  ? ( 5) : (10))
   crit: $this > (($status == $CRITICAL) ? (10) : (20))
   info: network interface errors per second
   to: sysadmin

Notification configuration is in health_alarm_notify.conf:

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docker exec netdata edit-config health_alarm_notify.conf

Configure multiple notification channels:

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# Email
SEND_EMAIL="YES"
DEFAULT_RECIPIENT_EMAIL="admin@example.com"

# Slack
SEND_SLACK="YES"
SLACK_WEBHOOK_URL="https://hooks.slack.com/services/xxx/yyy/zzz"
DEFAULT_RECIPIENT_SLACK="#network-alerts"

# Discord
SEND_DISCORD="YES"
DISCORD_WEBHOOK_URL="https://discord.com/api/webhooks/xxx/yyy"
DEFAULT_RECIPIENT_DISCORD="network-monitoring"

# Telegram
SEND_TELEGRAM="YES"
TELEGRAM_BOT_TOKEN="123456789:ABCdef..."
DEFAULT_RECIPIENT_TELEGRAM="-1001234567890"

Advanced: Combining Netdata + LibreNMS

For comprehensive coverage, run both tools together. Netdata handles real-time per-node visibility while LibreNMS handles network-wide discovery, topology, and flow collection.

Unified Docker Compose Stack

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services:
  # LibreNMS for network device monitoring
  librenms:
    image: librenms/librenms:latest
    container_name: librenms
    restart: unless-stopped
    ports:
      - "8080:80"
    environment:
      - DB_HOST=librenms-db
      - DB_NAME=librenms
      - DB_USER=librenms
      - DB_PASSWORD=librenms_secret
    volumes:
      - librenms-config:/data/config
      - librenms-rrd:/data/rrd
      - librenms-logs:/data/logs

  librenms-db:
    image: mariadb:10.11
    restart: unless-stopped
    environment:
      - MYSQL_DATABASE=librenms
      - MYSQL_USER=librenms
      - MYSQL_PASSWORD=librenms_secret
      - MYSQL_ROOT_PASSWORD=root_secret
    volumes:
      - librenms-db:/var/lib/mysql

  # Netdata for real-time system metrics
  netdata:
    image: netdata/netdata:stable
    container_name: netdata
    restart: unless-stopped
    hostname: monitoring-host
    cap_add:
      - SYS_PTRACE
    security_opt:
      - apparmor:unconfined
    ports:
      - "19999:19999"
    volumes:
      - netdata-config:/etc/netdata
      - netdata-data:/var/lib/netdata
      - /proc:/host/proc:ro
      - /sys:/host/sys:ro

  # Grafana for unified dashboards (optional)
  grafana:
    image: grafana/grafana:latest
    container_name: grafana
    restart: unless-stopped
    ports:
      - "3000:3000"
    environment:
      - GF_SECURITY_ADMIN_PASSWORD=grafana_admin
      - GF_INSTALL_PLUGINS=grafana-clock-panel,grafana-piechart-panel
    volumes:
      - grafana-data:/var/lib/grafana

volumes:
  librenms-config:
  librenms-rrd:
  librenms-logs:
  librenms-db:
  netdata-config:
  netdata-data:
  grafana-data:

Grafana as Unified Dashboard

Both LibreNMS and Netdata can feed into Grafana:

LibreNMS Grafana Plugin — built into LibreNMS. Enable it under Global Settings → External → Grafana Integration. Install the Grafana plugin:

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docker exec librenms apt-get update && \
  docker exec librenms apt-get install -y php-json php-curl

**Netdata as Grafana Data Soprometheusetdata exposes a Prometheus-compatible endpoint at http://netdata:19999/api/v1/allmetrics?format=prometheus. Add this as a Prometheus data source in Grafana.
LibreNMS MySQL as Data Source — point Grafana at the LibreNMS MariaDB instance for custom SQL queries on historical port utilization, device availability, and BGP session data.

Security Best Practices

Regardless of which tool you choose, follow these security practices:

Reverse Proxy with TLS

Never expose monitoring dashboards directly to the internet. Use a reverse proxy:

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server {
    listen 443 ssl http2;
    server_name monitoring.example.com;

    ssl_certificate /etc/letsencrypt/live/monitoring.example.com/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/monitoring.example.com/privkey.pem;

    # Restrict to internal networks
    allow 10.0.0.0/8;
    allow 172.16.0.0/12;
    allow 192.168.0.0/16;
    deny all;

    # Zabbix
    location /zabbix {
        proxy_pass http://127.0.0.1:8080;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
    }

    # LibreNMS
    location /librenms {
        proxy_pass http://127.0.0.1:8443;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
    }

    # Netdata
    location /netdata {
        proxy_pass http://127.0.0.1:19999;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
    }
}

SNMP Hardening

Always prefer SNMP v3 over v2c:

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# Create SNMP v3 user with auth and privacy
net-snmp-create-v3-user -ro -A auth_password -X priv_password -a SHA -X AES monitor_user

SNMP v2c community strings are sent in plaintext — only use them on isolated management VLANs.

Database Backups

Monitoring data is valuable for trend analysis. Back up your databases:

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#!/bin/bash
# backup-monitoring-db.sh
BACKUP_DIR="/backup/monitoring"
DATE=$(date +%Y%m%d_%H%M%S)

# LibreNMS / Zabbix database backup
docker exec librenms-db mysqldump -u librenms -plibrenms_secret librenms | \
  gzip > "${BACKUP_DIR}/librenms_${DATE}.sql.gz"

# Keep 30 days of backups
find "${BACKUP_DIR}" -name "*.sql.gz" -mtime +30 -delete

Add to crontab:

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0 2 * * * /root/backup-monitoring-db.sh

Performance Tuning

Zabbix

Use database partitioning for large installations (history table partitioning)
Deploy Zabbix proxies for remote sites to reduce server load
Increase StartPollers and StartTrappers in zabbix_server.conf for high-volume environments
Use CacheSize=128M and HistoryCacheSize=64M for environments with 500+ hosts

LibreNMS

Increase poller count: set POLLERS=16 or higher in the Docker environment
Use RRDcached (included in the compose file above) for efficient RRD writes
Run daily.sh for automatic updates and database optimization:
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docker exec librenms /opt/librenms/daily.sh
Enable memcached or redis for distributed polling sessions

Netdata

Set memory mode = dbengine for long-term storage with compression
Configure page cache size based on available RAM (1-4 GB recommended)
Use dbengine multihost disk space = 256 for 256 MB of compressed storage per host
Enable streaming compression = lz4 for parent-child data transfer

Conclusion

All three tools are mature, production-ready, and entirely free. Your choice depends on your primary use case:

Zabbix — choose when you need a single platform for servers, networks, applications, and custom metrics. Its template ecosystem covers virtually everything.
LibreNMS — choose when network infrastructure is your primary concern. Auto-discovery, topology maps, BGP monitoring, and flow collection are unmatched.
Netdata — choose when you need immediate, second-by-second visibility into system performance with zero configuration overhead.

For maximum coverage, pair Netdata (real-time per-node metrics) with LibreNMS (network-wide discovery and trending) — many organizations find this combination covers both the forest and the trees.

All three integrate cleanly with reverse proxies, support containerized deployment, and offer robust alerting pipelines. Pick the tool that matches your team’s expertise and your infrastructure’s needs — you can’t go wrong with any of them.

Frequently Asked Questions (FAQ)

Which one should I choose in 2026?

The best choice depends on your specific requirements:

For beginners: Start with the simplest option that covers your core use case
For production: Choose the solution with the most active community and documentation
For teams: Look for collaboration features and user management
For privacy: Prefer fully open-source, self-hosted options with no telemetry

Refer to the comparison table above for detailed feature breakdowns.

Can I migrate between these tools?

Most tools support data import/export. Always:

Backup your current data
Test the migration on a staging environment
Check official migration guides in the documentation

Are there free versions available?

All tools in this guide offer free, open-source editions. Some also provide paid plans with additional features, priority support, or managed hosting.

How do I get started?

Review the comparison table to identify your requirements
Visit the official documentation (links provided above)
Start with a Docker Compose setup for easy testing
Join the community forums for troubleshooting

Advertise here

Why Self-Host Your Network Monitoring?

Feature Comparison: Zabbix vs LibreNMS vs Netdata

Which One Should You Choose?

Zabbix: Enterprise-Grade Monitoring

Architecture

Docker Compose Deployment

Adding SNMP Network Devices

Configuring Alert Triggers

LibreNMS: Network-First Monitoring

Docker Compose Deployment

SNMP Configuration for LibreNMS

Auto-Discovery Setup

Network Flow Collection

Alert Configuration

Netdata: Real-Time System Performance

Docker Compose Deployment

Monitoring Network Devices via SNMP

Parent-Child Streaming for Multiple Nodes

Configuring Alerts

Advanced: Combining Netdata + LibreNMS

Unified Docker Compose Stack

Grafana as Unified Dashboard

Security Best Practices

Reverse Proxy with TLS

SNMP Hardening

Database Backups

Performance Tuning

Zabbix

LibreNMS

Netdata

Conclusion

Frequently Asked Questions (FAQ)

Which one should I choose in 2026?

Can I migrate between these tools?

Are there free versions available?

How do I get started?

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