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Zabbix Agent

Zabbix Agent is a lightweight monitoring agent that reports host and system metrics to a Zabbix Server or Zabbix Proxy.

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Zabbix Agent is a lightweight monitoring agent that reports host and system metrics to a Zabbix Server or Zabbix Proxy. It collects information such as load, memory, network, and disk usage from the monitored host. It is intended for hosts that already have access to an existing Zabbix deployment and need to expose host metrics for monitoring.

Platform availability

Available on 2 of 6 install platforms

  • Unraid
  • TrueNAS (not listed)
  • Umbrel (not listed)
  • ZimaOS (not listed)
  • Proxmox (not listed)
  • Helm

Also on Docker Hub and GitHub

Health score

52/100 Fair

Maintained
69last commit 61 days ago
Popular
00 GitHub stars
Easy to install
452 install platforms, install notes, Docker image
Light to run
100128 MB minimum RAM, runs on ARM
How is this calculated?

A 0-100 score computed nightly from four factors: maintained (40%: recent commits and steady activity), popular (25%: GitHub stars, log scale), easy to install (20%: platforms, install notes, setup guides, Docker image) and light to run (15%: minimum RAM, ARM support). Factors without data are left out and the rest are rescaled.

Availability: platform listings confirmed today, links checked 11 days ago

GitHub stars
0
Open issues
0
Last commit
2026-08-09
Latest release
4.1.9
Activity
stale

Checked 9 days ago - source: GitHub (zabqix/Zabbix-agent)

Resources & Compatibility

Minimum requirements: 128 MB RAM, 256 MB disk. ARM (e.g. Raspberry Pi) is supported.

Checked 10 days ago - source: Docker Hub image tags and published docs

First-install notes

  • Set up SSH and allow port 22 first If you plan to use SSH (secure shell access), start the SSH service and let inbound traffic reach port 22 before monitoring. Without both, remote SSH checks can't get to the host. source
  • Start bsnmpd if you use SNMP If your setup uses SNMP (a protocol for collecting device metrics), run /etc/rc.d/bsnmpd start before monitoring begins. If the helper isn't running, SNMP-based metrics may stay empty. source
  • First install Configure the agent with your Zabbix server or proxy address before starting it. source

Fetched today - each note links to its source

Alternatives (9)

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  • LibreNMS - LibreNMS is a fully featured network monitoring system that discovers and monitors network devices, interfaces, and services.
  • Nagios - Nagios is a powerful monitoring system licensed under Nagios Enterprises that helps organizations identify and resolve IT infrastructure is…
  • Netdata - Netdata collects metrics per second and presents them in beautiful low-latency dashboards.
  • Paessler PRTG Network Monitor - Comprehensive network monitoring includes up/downtime tracking, traffic analysis, and performance metrics using SNMP, WMI, and NetFlow prot…
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Checked 7 days ago - source: AlternativeTo

Common questions

Can the agent monitor a host behind NAT or a restrictive firewall without opening an inbound port?

Yes, active checks let the agent connect outward to the Zabbix server or proxy, retrieve item configuration, and send collected values. Passive checks instead require the server or proxy to connect to the agent.

Where is the main Zabbix Agent configuration file and can it be split into fragments?

The primary configuration file is zabbix_agentd.conf, normally under /etc/zabbix on Unix-like systems and with the agent service files on Windows. It can be split with Include directives, but included files must be readable, syntactically valid, and duplicate settings should be avoided.

Why may the Zabbix server self-check fail in a containerized setup?

The default item may look for localhost, which does not work normally inside containers. Change the item target to zabbix-agent so it points to the running Zabbix Agent container.

Can newly installed Zabbix agents join an existing deployment automatically?

Yes, once Zabbix is set up, newly installed agents can self-register on the Zabbix server. The server can apply the correct template based on a discovery rule.

Answers sourced from github.com, github.com, www.reddit.com

Community

Collected 5 days ago - public community threads